CN101484560A - Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composit - Google Patents

Abstract

Disclosed are a refrigerator oil, a compressor oil composition, a hydraulic fluid composition, a metalworking fluid composition, a heat treatment oil composition, a lubricant composition for machine tools and a lubricant composition, each containing a lubricant base oil having a %CA of not more than 2, a %CP/%CN of not less than 6 and an iodine value of not more than 2.5.

Description

Refrigerator oil, compressor oil composition, hydraulic oil composition, Metalworking fluid composition, heat-treatment oil composition, work mechanism lubricating oil composition, lubricating oil composition

Technical field

[0001] the present invention relates to refrigerator oil, compressor oil composition, hydraulic oil composition, Metalworking fluid composition, heat-treatment oil composition, work mechanism lubricating oil composition and lubricating oil composition.

Background technology

[0002] in the field of the industrial lubricating oil of what is called, as mentioned below, according to its purposes, require lubricating oil to have various characteristics.

[0003] for example in the field of refrigerator oil, in recent years because the problem of depletion of the ozone layer, CFC (Chlorofluorocarbons (CFCs)) and the HCFC (hydrochlorofluorocarsolvent) that uses as the cooling agent of freezing air conditioner became restricted object in the past, will change the HFC (hydrofluorocarbon) that forms by them at present and use as cooling agent.

[0004] in addition, for above-mentioned HFC cooling agent, also there is the high problem of ability that makes greenhouse effects of the earth.Therefore, as the replacement cooling agent of these freon class cooling agent, people are also at research carbonic acid gas (CO ₂) use of natural refrigerant such as cooling agent or hydro carbons cooling agent.

[0005] as the HFC refrigerator oil for refrigerant, past uses always that PAG (polyalkylene glycol), POE (polyol ester), PVE (polyvinyl ether) etc. and HFC cooling agent mixes contains oxygen class synthetic oil, and these contain oxygen class synthetic oil is respectively having relative merits aspect the characteristic of any refrigerator oil.On the other hand, alkylbenzene such as branch chain type alkyl benzene and HFC cooling agent are immiscible, but have the feature (reference example such as following patent documentation 1,2) that wear resistance and rubbing characteristics are better than containing oxygen class synthetic oil in the presence of cooling agent.

[0006] in addition, as natural refrigerator oil for refrigerant, the someone proposes to use the scheme of various refrigerator oils.For example, as the carbon dioxide refrigerant refrigerator oil, the refrigerator oil that uses hydrocarbon base oils such as alkylbenzene or poly-alpha olefins is disclosed in the following patent documentation 3; The refrigerator oil that uses ethers base oils such as polyalkylene glycol or polyvingl ether is disclosed in the following patent documentation 4; The refrigerator oil that uses ester class base oil is disclosed in the following patent documentation 5～7.

[0007] in addition, for the lubricating oil that uses in the gas compressors such as rotary gas compressor (compressor oil), owing to recycle and inevitable and reasons such as high temperature compressed gas contacts, requirement has good thermal oxidation stability.Therefore, in general, the compressor oil that past uses amine antioxidantss such as phenol antioxidant such as cooperating 2,6 ditertiary butyl p cresol at highly refined mineral oils base oil or with the hydride of poly-alpha olefins class in as the synthetic class hydrocarbon ils of representative or phenyl-a-naphthylamine to form always.

[0008] yet, for resembling the lubricating oil of paying attention to thermal oxidation stability at high temperature the rotary gas compression machine oil, in order to obtain sufficient resistance to thermooxidation, not only want the heavy addition antioxidant, and also have the antioxidant problem of sludgeization easily itself this moment.In case generation sludge, then cause heating or damage of the bearing on the bearing owing to the rotator that is attached to rotary gas compressor, and then, often cause easily the obstruction of pressurized gas and the isolating mist of oil recovering mechanism of mist of oil (mist eliminator), will cause equipment to shut down inevitably like this.

[0009] therefore, the someone studies the thermal oxidation stability that can take into account lubricating oil and the additive formulations of anti-sludge, proposes to use the scheme (reference example such as patent documentation 8) to specific antioxidant such as branched-chain alkyl phenyl-alpha-naphthylamine.

[0010] in addition, in the pump that constitutes hydraulic circuit, control valve, hydro-cylinder etc., exist and follow metal-metal to contact or the contacted sliding position of metal-rubber (resin).For the hydraulic oil that has as the lubricant of this sliding position, require to have good wear resistance and rubbing characteristics.

[0011] in addition, in case follow the generation of the deterioration of hydraulic oil or abrasion powder and produce sludge, the sliding resistance that will cause above-mentioned sliding position increases, and then cause flowrate control valve obturation in the hydraulic circuit, therefore, except requiring hydraulic oil to have wear resistance and the rubbing characteristics, also to have thermal oxidation stability.

[0012] therefore, for hydraulic oil in the past, in order to tackle above-mentioned requirement, people have done various researchs.For example, thermal oxidation stability in order to ensure hydraulic oil, as lubricant base, use hydrorefined mineral oils, hydrocracking mineral oil equal altitudes refined mineral oil, and then use synthetic class hydrocarbon ils such as poly-alpha olefins etc., and then, seek the further raising of thermal oxidation stability by in these lubricant bases, adding phenols or amine antioxidants.In addition, consider,, use zinc dithiophosphate class anti-wear agent such as (ZnDTP) zinc or phosphoric acid ester and amine salt thereof, thiophosphatephosphorothioate, β-non-zinc class anti-wear agents such as dithio phosphorylated phenylpropionic acid compound as anti-wear agent from the viewpoint that improves wear resistance.In addition, consider, seek the reduction (reference example such as patent documentation 9～12) of the frictional coefficient of slipping plane by in hydraulic oil, cooperating low friction compound from the viewpoint that improves rubbing characteristics.

[0013] in addition, in the field of metal processing, the past, lubricated for the working position that makes metal system workpiece (machined object), use metalworking fluid always.The characteristic (hereinafter referred to as " processibility ") of the condition of surface that requires this metalworking fluid to reach to reduce operating force, boost productivity, improve workpiece (for example the gloss after the calendering etc.) etc. by good lubricating.

[0014] therefore, as metalworking fluid in the past, in order to improve processibility, the general metalworking fluid (reference example such as patent documentation 13,14) that is combined with additives such as oiliness improver (oiliness improver), extreme pressure agent that uses.

[0015] in addition, in the past, in make metal-modified thermal treatment (quenching etc.) by heating and cooling, use heat-treated oil.

[0016] when quenching, its process of cooling is as follows usually to workpiece such as steel (object being treated) for the use heat-treated oil.

[0017] at first, in case workpiece is put in the heat-treated oil, workpiece will be surrounded by the steam of oil or its decomposition gas.In this stage, owing to the barriering effect of vapor film is difficult to conduct heat, so speed of cooling is slow.

[0018] secondly, the surface temperature of workpiece reduces gradually, in case reach below the temperature of regulation, then causes the nucleate boiling of oil.This stage is called boiling stage, demonstrates great cooling performance.Illustrated, in JIS K 2242 (heat-treated oil), the vapor film of oil breaks and the temperature that begins nucleate boiling is called as " representative temperature ", in order to obtain enough hardness, the heat-treated oil that the expected characteristics temperature is high promptly arrives short heat-treated oil of needed time of representative temperature.

[0019] along with the boiling point of workpiece surface temperature near oil, boiling dies down, in case surpass boiling point, then boiling stops, and only carries out because the cooling slowly that convection current causes.The speed of cooling in this stage depends on the thermal treatment oil viscosity, and the thermal treatment oil viscosity is low more, and expression cooling property is good more.Therefore, in JIS K 2242 (heat-treated oil), the kinematic viscosity when recommending to use 40 ℃ is at 30mm ²The heat-treated oil that/s is following, in addition, particularly when the steel with the hardenability difference are process object, (for example, the kinematic viscosity 40 ℃ the time is at 26mm to recommend the lower heat-treated oil of use viscosity ²The heat-treated oil that/s is following).

[0020] as mentioned above, the past, as the heat-treated oil that is used to obtain enough hardness, the heat-treated oil that preferred characteristics temperature height and viscosity are low.In addition, if just reduce mineral oil viscosity simply as the base material use of heat-treated oil, then its representative temperature has also reduced, therefore, for heat-treated oil in the past, people are studying the method (reference example such as patent documentation 15) that improves representative temperature by the cooling improving agents such as multipolymer that add ethene and alpha-olefin in the low mineral oil of viscosity.

In the field of work mechanism, require to improve the working accuracy of component, correspondingly, require to improve the precision of the position in the decision slide guide rail.The precision of the position in the decision slide guide rail and slide guide rail have confidential relation with the performance of oil, except requiring low friction (being that frictional coefficient is little), also require stick-slip reduction property.And then, for work mechanism lubricating oil, also require it to have high long-lasting and maintenance-free performance.

[0021] therefore, for work mechanism lubricating oil in the past, in order to tackle above-mentioned requirement, people have carried out various researchs.For example, in order to obtain the excellent friction characteristic, sulphur compounds such as phosphorus compounds such as use phosphoric acid ester and amine compound thereof, sulfuration grease, sulfuration ester etc. are as additive (reference example such as following patent documentation 16～20).

[0022] in addition, in order to ensure the thermal oxidation stability of work mechanism with lubricating oil, as lubricant base, except solvent treatment mineral oil, also can use hydrorefined mineral oils, hydrocracking mineral oil equal altitudes refined mineral oil, and then also can use (reference example such as patent documentations 21～24) such as synthetic class hydrocarbon ils such as poly-alpha olefinss.

[0023] in addition, the lubricating oil that in steam turbine, internal combustion turbine, rotary gas compressor, hydraulic machinery etc., uses, owing to be at high temperature to use, and be to recycle, therefore, can the withstand prolonged use be important.Especially, aforesaid device or machinery have the tendency of the very strong insoluble composition (sludge) that is subjected to separating out in lubricating oil infringement.For example, in case on the bearing of sludge composition attached to rotator of separating out, will become the reason of heating, and the poorest situation also can cause the damage of bearing.In addition, in case sludge is separated out, the problem in the runnings such as filter stoppage that are provided with in the circulation line will appear causing.And then, when sludge is deposited in the control valve place and causes that the work of Controlling System is bad, will cause device to shut down inevitably.Therefore, for the lubricating oil that uses in this field, except thermal oxidation stability, the characteristic (hereinafter referred to as " sludge suppresses (preventing) property ") that also requires sludge to be difficult for separating out.

[0024] therefore, for the lubricating oil in the past that in steam turbine, internal combustion turbine, rotary gas compressor, hydraulic efficiency installation etc., uses, by being that the synthetic class hydrocarbon ils etc. of representative is as base oil with highly refined mineral oil or with poly-alpha-olefin type hydrogenation thing, cooperate antioxidant, seek to improve its thermal oxidation stability and sludge inhibition (reference example such as following patent documentation 25).

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Summary of the invention

The problem that invention will solve

[0025] yet, above-mentioned lubricating oil in the past all has room for improvement in following each side.

[0026] for example, the branch chain type alkyl benzene that uses in the HFC refrigerator oil for refrigerant in the past is owing to reasons such as shortage Biodegradables, and demand in the world reduces day by day, and the consequent is that feed rate sharply reduces, and this is present present situation.Therefore, people thirst for developing the refrigerator oil that replaces alkylbenzene.

[0027] in addition, because the solvability of hydro carbons cooling agent in refrigerator oil is good, and, itself viscosity of carbon dioxide refrigerant is little, therefore, in a single day these cooling agent are dissolved in the above-mentioned refrigerator oil in the past, will reduce the refrigerator oil viscosity largely, therefore can not guarantee virtual viscosity, thereby make the wearing and tearing easily that become such as slide unit of coolant compressor.Particularly in recent years, in the field of freezing air conditioner, consider from the viewpoint of energy-conservationization, requirement is stirred resistance or the favourable low viscous refrigerator oil of pipeline resistance to reducing, but in this occasion that makes the refrigerator oil lowering viscousity, guarantee that virtual viscosity just becomes more difficult, becoming of wearing and tearing is more remarkable.

[0028] illustrated, as the means of improving the refrigerator oil oilness, can consider to add anti-wear agents such as extreme pressure agent in the refrigerator oil method, but in order to obtain enough wear resistancies, heavy addition anti-wear agent to a certain extent, thus the stability of refrigerator oil might be damaged.In addition, the wear resistance raising effect of being brought by extreme pressure agent is owing to the epithelium that forms on the slide unit surface from extreme pressure agent, but, therefore, consider it is undesirable from the viewpoint of energy-conservationization because the formation of described epithelium causes the frictional coefficient between the slide unit to improve.

[0029] in addition,, can consider the synthetic class base oils such as poly-alpha olefins that use viscosity index high, reduce the degree methods that the virtual viscosity of refrigerator oil reduces as far as possible as other means of improving the refrigerator oil oilness.Yet, even if, in the presence of hydro carbons cooling agent or carbon dioxide refrigerant, be difficult to obtain enough wear resistancies in the occasion of using this synthetic class base oil.In addition, because the price height of synthetic class base oils such as poly-alpha olefins, therefore, its use causes rising as the cost of freezing air conditioner integral body.

[0030] in addition, occasion at compressor oil, in recent years, following to reduce circulation oil mass etc. is the device miniaturization that purpose is carried out, the thermal load of compressor oil increases day by day, as record in the above-mentioned patent documentation 8 like that, only to improve the effect of characteristic of compressor oil limited by changing additive formulations.

[0031] in addition, in the occasion of hydraulic oil, in recent years, the hydraulic system is high performance day by day, for example, in order to carry out high-speed, high-accuracy control, utilize valve such as guiding valve to control the situation of the flow of hydraulic efficiency system, direction etc. and that the situation of servo-valve is installed is a lot.In case produce sludge in the hydraulic oil, the performance of this guiding valve or servo-valve will reduce significantly.Therefore, require further to improve the wear resistance and the thermal oxidation stability of hydraulic oil.

[0032] in addition, amendment according to energy conservation, specify specified factory in the factory for energy management, the energy is cut down becomes necessary project, must carry out energy-conservationly according to annual numerical target, the reduction of the consumption electric power of the run motor in the factory in the widely used hydraulic work device becomes important problem.Consider that from the viewpoint of this energy saving the friction resistance that reduces sliding position is effectively, therefore, require further to improve the rubbing characteristics of hydraulic oil.

[0033] still, even if above-mentioned hydraulic oil in the past, employed lubricant base also has room for improvement at aspects such as thermal oxidation stability, rubbing characteristics, viscosity-temperature profiles, and, it is limited to improve effect by the characteristic that cooperates various additive to bring, therefore, as the technical scheme of the above-mentioned whole requirements of reply, may not necessarily be satisfactory.

[0034] in addition,, in recent years, wish further to improve working accuracy and working (machining) efficiency, for the metalworking fluid in the past of record in the above-mentioned patent documentation 13,14, can not realize sufficient processability in the occasion of metalworking fluid.

[0035] in addition, as the means of the processibility that improves metalworking fluid, can consider to increase the method for the ratio in the little hydrodynamic lubrication zone of frictional coefficient by the viscosity that improves metalworking fluid.Yet,, therefore, when the viscosity of raising metalworking fluid, usually can cause departing from the optimum oil film thickness, thereby can not realize sufficient processability because the optimum thickness of the oil film that is formed by metalworking fluid is with the kind of metal processing or processing conditions and different.In addition, the high viscosityization of metalworking fluid also has such problem, that is, in being in the oil removing operation of manufacturing procedure back segment, oil content is difficult to remove from machined object (workpiece).

[0036] in addition, though can improve processibility to a certain extent by increasing the use levels of additive in metalworking fluid such as oiliness improver, extreme pressure agent, but it is limited naturally that the processibility that adopts this method to bring improves effect, also may not obtain sufficient processability easily.In addition, in the occasion that increases these additives, in being in the oil removing operation of manufacturing procedure back segment, oil content also is difficult to remove from machined object (workpiece).In addition, the use of a large amount of additives can cause cost to increase and operating environment worsens (foul smell etc. takes place).And then, except the processing conditions harshnessization, from efficent use of resources, reduce waste oil, the viewpoint that reduces metalworking fluid user's cost etc. considers, require metalworking fluid to have the thermal oxidation stability of can long term maintenance stable proterties, but the content that increases oiliness improver or extreme pressure agent also can become the reason of the thermal oxidation stability reduction of metalworking fluid.

[0037] in addition, in the occasion of heat-treated oil, even if the heat-treated oil of record in the above-mentioned patent documentation 15, object being treated (workpiece) distortion (strain) when quenching down in order to be suppressed at high oil temperature still has room for improvement.Illustrated, when the speed of cooling in the martensitic transformation temperature zone of metal is too fast, this strain takes place easily, in addition, the mineral oil that uses in heat-treated oil in the past generally demonstrates the fast more tendency of speed of cooling of low more this temperature province of viscosity.

[0038] in addition, in the occasion of work mechanism, even if the work mechanism lubricating oil in the past of above-mentioned patent documentation 21～24 records aspect rubbing characteristics and stick-slip minimizing property, still has room for improvement with lubricating oil.In addition,, consider talkatively to have sufficient thermal oxidation stability, wish its further improvement from long-lasting viewpoint for above-mentioned work mechanism lubricating oil in the past.

[0039] in addition, for generating set in recent years, in order to improve generating efficiency, to effectively utilize energy, the internal combustion turbine that the pyritous combustion gases are used as working medium or by internal combustion turbine and steam turbine being made up the co-operation that the combined cycle power plant that forms etc. carries out multiple devices.Though the burning gas temperature of the internal combustion turbine that uses in the cause power plant for emergency in the 1980's is about 1,100 ℃, in recent years, along with the thermotolerance of the constituent material of internal combustion turbine improves, high temperatureization proceeds to about 1,500 ℃.In addition,,,, follow the miniaturization of compressor, to the also increase significantly of thermal load of lubricating oil in recent years though itself have lubricating oil and the contacted mechanism of pyritous pressurized gas about rotary gas compressor.

[0040] as mentioned above, the working conditions of the lubricating oil of above-mentioned equipment or machinery becomes strict day by day, and the lubricating oil in the past for record in the above-mentioned patent documentation 25 is difficult to realize sufficient thermal oxidation stability and sludge inhibition.

[0041] in addition, method as the thermal oxidation stability that improves the lubricating oil that uses in steam turbine, internal combustion turbine, rotary gas compressor, the hydraulic efficiency installation etc., can consider to increase the consumption of antioxidant, but this moment, the sludge of antioxidant itself changes into and is problem, therefore, can not get taking into account the basic solution countermeasure of thermal oxidation stability and sludge inhibition.Especially, when the synthetic class hydrocarbon ils such as hydrogenation products with the poly-alpha-olefin class were used as base oil, this base oil just was difficult to therefore additive or the dissolving of its oxidative degradation thing, are not wished to increase the consumption of antioxidant originally.

[0042] therefore, the objective of the invention is to, a class useful lubricating oil or lubricating oil composition in the field of industrial lubricating oil is provided.

[0043] especially, the objective of the invention is to, provide a class in the presence of cooling agent such as HFC cooling agent, hydro carbons cooling agent, carbon dioxide refrigerant, can bring into play good wear resistance and rubbing characteristics, can realize improving long-term reliability and both refrigerator oils of energy-conservationization of freezing air conditioner.

[0044] in addition, the objective of the invention is to,, also can realize the compressor oil composition of thermal oxidation stability and anti-sludge high-levelly even if provide a kind of when at high temperature using.

[0045] in addition, the objective of the invention is to, provide a kind of can high level and balance realize the over-all properties of wear resistance, rubbing characteristics, thermal oxidation stability and viscosity-temperature profile well, and aspect the high performance of hydraulic system and energy-conservationization effective hydraulic oil composition.

[0046] in addition, the objective of the invention is to, even provide a kind of consumption that does not improve viscosity or do not increase additive also can access good processibility, and the good metalworking fluid of the removing property from processed workpiece.

[0047] in addition, the objective of the invention is to, provide a kind of and when under the oily temperature of height, quenching, can realize sufficient hardness, and can fully suppress the strained heat-treated oil.

[0048] in addition, the objective of the invention is to, provide a kind of can high level and balance realizes that well rubbing characteristics, stick-slip degree reduce property and thermal oxidation stability, and aspect the high performance of work mechanism effective work mechanism lubricating oil composition.

[0049] in addition, the objective of the invention is to, provide a kind of high level and balance is taken into account thermal oxidation stability and sludge inhibition well, and when the lubricating oil as steam turbine, internal combustion turbine, rotary gas compressor, hydraulic efficiency installation etc. uses, can realize the lubricating oil composition of abundant long-actingization.

Be used to solve the means of problem

[0050] in order to solve above-mentioned problem, the invention provides a kind of refrigerator oil, it is characterized in that, contain %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5.

[0051] about lubricant base contained in the refrigerator oil of the present invention, its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, so the wear resistance of itself, rubbing characteristics and viscosity-temperature profile are good.In addition, according to the refrigerator oil of the present invention that contains this lubricant base, in the presence of cooling agent such as HFC cooling agent, hydro carbons cooling agent, carbon dioxide refrigerant, can fully suppress the wearing and tearing of the slide unit etc. of coolant compressor, on the other hand, can fully reduce the frictional coefficient between the slide unit and the stirring resistance of refrigerator oil.And then, because above-mentioned lubricant base has sufficient thermal oxidation stability, therefore, can obtain above-mentioned wear resistance for a long time and stably and improve effect, frictional coefficient reduction effect and stir the low effect of resistance drop.Therefore, by refrigerator oil of the present invention being used for using the freezing air conditioner of HFC cooling agent, hydro carbons cooling agent, carbon dioxide refrigerant etc., can realize the raising of long-term reliability of freezing air conditioner and energy-conservationization the two.

[0052] in addition, the invention provides a kind of compressor oil composition, it is characterized in that, contain %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is lubricant base, antioxidant and antimist agent below 2.5.

[0053] about lubricant base contained in the compressor oil composition of the present invention, its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, so itself have good thermal oxidation stability, and viscosity-temperature profile is also good.And then this lubricant base can fully stably dissolve and keep additives such as antioxidant and antimist agent, can bring into play the function of additive again with higher level.Therefore, according to the present invention, even if can realize a kind of when at high temperature using, also can with high level realize thermal oxidation stability and anti-sludge the two, and anti-mist of oil and the also good compressor oil composition of stopping property.

[0054] in the compressor oil composition of the invention described above, the content of antioxidant is benchmark with the total composition, is preferably 0.02～5 quality %.By antioxidant is in the above-mentioned scope, can be with higher level balance realize thermal oxidation stability and anti-sludge under the high temperature well.

[0055] in addition, the invention provides a kind of hydraulic oil composition, it is characterized in that, contain %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5 and contain phosphorus and/or sulphur as the compound that constitutes element.

[0056] contained lubricant base in the hydraulic oil composition of the present embodiment, its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, so the thermal oxidation stability of itself, viscosity-temperature profile and rubbing characteristics are good.And then this lubricant base can stably dissolve and keep this additive when being combined with additive, can bring into play the function of this additive again with higher level.Therefore, hydraulic oil composition according to the present embodiment, by this lubricant base with good characteristic with contain phosphorus and/or sulphur synergy as the compound that constitutes element, the over-all properties of wear resistance, rubbing characteristics, thermal oxidation stability and viscosity-temperature profile can be realized with high level and balance well, and the high performance and energy-conservationization of hydraulic system can be realized.

[0057] in addition, the invention provides a kind of Metalworking fluid composition, it is characterized in that, contain %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number be below 2.5 lubricant base and from ester, alcohol, carboxylic acid and contain phosphorus and/or sulphur as at least a kind of lubricity improver selecting the compound that constitutes element.

[0058] contained lubricant base in the Metalworking fluid composition of the present embodiment, its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, so the rubbing characteristics of itself is good, in addition, in the hydrodynamic lubrication field, can reduce shearing resistance, fully prevents breaking of oil film.In addition, this lubricant base is being combined with from ester, alcohol, carboxylic acid and is containing phosphorus and/or the occasion of at least a kind of lubricity improver that sulphur is selected as the compound that constitutes element, can stably dissolve and keep this lubricity improver, can improve effect by the oilness in the boundary lubrication field that this lubricity improver causes with the higher level performance again.And then this lubricant base is owing to have a sufficient thermal oxidation stability, therefore by its use, and can the above-mentioned excellent lubrication of long term maintenance.

[0059] therefore, the Metalworking fluid composition of the present embodiment can obtain good processibility steadily in the long term.And then, in the Metalworking fluid composition of the present embodiment,, needn't improve the consumption of viscosity or increase additive in order to obtain above-mentioned processibility and long term maintenance thereof, therefore, the Metalworking fluid composition of the present embodiment also is good aspect the removal from processed workpiece.

[0060] the invention provides a kind of heat-treatment oil composition, it is characterized in that, contain %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is lubricant base and cooling property improving agent below 2.5.

[0061] contained lubricant base in the heat-treatment oil composition of the invention described above, its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, so itself have good viscosity-temperature profile, and have sufficient thermal oxidation stability.In addition, this lubricant base can fully stably dissolve and keep additives such as cooling property improving agent, can bring into play the function of this additive again with higher level.Therefore, the heat-treatment oil composition of the present invention that constitutes by above-mentioned lubricant base and cooling property improving agent, can realize cooling property fully at the boiling stage that quenches, simultaneously, can fully be suppressed at the too fast phenomenon of speed of cooling in the Martensite temperature zone, its result can stably obtain the metal works that has sufficient hardness and should tail off.

[0062] in addition, contained cooling improving agent in the heat-treatment oil composition of the present invention is preferably at least a kind that selects from multipolymer, pitch and the insoluble composition thereof of the alpha-olefin of ethene and carbon number 3～20 are removed the alkali earth metal salt of thing and alkyl salicylate.By use in these cooling property improving agents more than a kind or 2 kinds, can realize above-mentioned effect of the present invention with higher level.

[0063] in addition, the invention provides a kind of work mechanism lubricating oil composition, it is characterized in that, contain %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5 and contain phosphorus and/or sulphur as the compound that constitutes element.

[0064] work mechanism of the present invention contained lubricant base in the lubricating oil composition, its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, so the thermal oxidation stability of itself and rubbing characteristics are good.And then this lubricant base can stably dissolve and keep this additive in the occasion that cooperates additive, can bring into play the function of this additive again with higher level.Therefore, work mechanism lubricating oil composition of the present invention, by this lubricant base with good characteristic with contain phosphorus and/or sulphur synergy as the compound that constitutes element, the over-all properties of rubbing characteristics, stick-slip reduction property and thermal oxidation stability can be realized with high level and balance well, and the high performance of work mechanism can be realized.

[0065] in addition, the invention provides a kind of lubricating oil composition, it is characterized in that, contain %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number be below 2.5 lubricant base and not sulfur-bearing be antioxidant as constituting the ashless of element, ashless is the content of antioxidant, is benchmark with the total composition, is 0.3～5 quality %.

[0066] contained lubricant base in the lubricating oil composition of the invention described above, its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, so the thermal oxidation stability of itself is good.And then this lubricant base is cooperating ashlessly when being additive such as antioxidant, can stably dissolve and keep this additive, can bring into play its function with higher level again.In addition, contain not in this lubricant base with good characteristic by making that sulfur-bearing makes its content satisfy above-mentioned condition as the ashless antioxidant that constitutes element, just can take into account thermal oxidation stability and sludge inhibition well with high level and balance.Therefore, lubricating oil composition of the present invention when the lubricating oil as steam turbine, internal combustion turbine, rotary gas compressor, hydraulic efficiency installation etc. uses, can be realized sufficient long-actingization.

[0067] lubricating oil composition of the present invention preferably also contains the aromatic hydroxy compound that alkyl replaces.Just can take into account thermal oxidation stability and sludge inhibition thus with higher level.

[0068] in addition, as the aromatic hydroxy compound that abovementioned alkyl replaces, be at least a kind that from alkylbenzene, alkylnaphthalene, alkyl biphenyl and alkyl diphenyl base paraffinic hydrocarbons, selects, preferably have 1 or 2 carbon numbers and be the compound of 8～30 alkyl.

[0069] in addition, lubricating oil composition of the present invention contain phenyl-a-naphthylamine compound and alkylated diphenylamine compound the two as ashless be antioxidant, the alkylated diphenylamine compound is shared ratio in the total amount of phenyl-a-naphthylamine compound and alkylated diphenylamine compound, by mass ratio, be preferably 0.1～0.9, more preferably 0.1～0.4.As ashless be antioxidant, by with phenyl-a-naphthylamine compound and alkylated diphenylamine compound and usefulness, make proportionally satisfy above-mentioned condition containing of the two, just can take into account resistance to thermooxidation and sludge inhibition with higher level.

The invention effect

[0070] as mentioned above, according to the present invention, provide a kind of and in the presence of cooling agent such as HFC cooling agent, hydro carbons cooling agent, carbon dioxide refrigerant, can bring into play good wear resistance and rubbing characteristics, and realize the two refrigerator oil of the raising of long-term reliability of freezing air conditioner and energy-conservationization.

[0071] in addition, according to the present invention,, also can realize the compressor oil composition of thermal oxidation stability and anti-sludge with high level even if provide a kind of when at high temperature using.

[0072] in addition, according to the present invention, provide a kind of over-all properties that can realize wear resistance, rubbing characteristics, thermal oxidation stability and viscosity-temperature profile well, effective hydraulic oil composition aspect the high performance of hydraulic system and energy-conservationization with high level and balance.

[0073] in addition, according to the present invention, even if provide a kind of consumption that does not improve viscosity or increase additive also can obtain good processibility, and the Metalworking fluid composition of from processed workpiece, removing easily.

[0074] in addition, according to the present invention, provide a kind of and when under the oily temperature of height, quenching, can realize sufficient hardness, and can fully suppress the strained heat-treatment oil composition.

[0075] in addition, according to the present invention, provide a kind of over-all properties that can realize rubbing characteristics, stick-slip reduction property and thermal oxidation stability well, effective work mechanism lubricating oil composition aspect the high performance of work mechanism with high level and balance.

[0076] in addition, according to the present invention, provide a kind of and take into account thermal oxidation stability and sludge inhibition well with high level and balance, when the lubricating oil as steam turbine, internal combustion turbine, rotary gas compressor, hydraulic efficiency installation etc. uses, can realize the lubricating oil composition of sufficient long-actingization.

Description of drawings

[0077] Fig. 1 is the summary pie graph that the oil spray test device that uses among the embodiment is shown.

Fig. 2 is disk and the configuration of ball and the explanatory view of action in SRV (the small reciprocal kinetic friction) test.

Fig. 3 is for schematically illustrating the summary pie graph of the measuring friction coefficient system that uses among the embodiment.

Fig. 4 is for schematically illustrating the summary pie graph of the stick-slip reduction property evaluating apparatus that uses among the embodiment.

Fig. 5 illustrates the frictional coefficient of the device acquisition of using Fig. 4 and a routine graphic representation of the mutual relationship of time.

Fig. 6 is the explanatory view that the high-temperature pump round-robin test equipment that uses among the embodiment is shown.

Nomenclature

[0078] 1... oil spray test device, 11... oil fog generator, 12... mist of oil box, 13... pressure warning unit, 14... trapping bottle, 15... nozzle, 16... spuious mist of oil relief outlet, 201... disk, 202... ball, 301... operator's console, 302...A/C servomotor, 303... feed screw, 304... movable anchor clamps, 305... load cell, 306... base, 307... computer, 308... controlling board, 309... ballast, 400... elastomerics, 401... upside test film, 402... downside test film, 403... load detector, 410... support platform, 601... fuel tank, 602... reducing valve, 604... pot strainer, 605... under meter, 606... water cooler.

Embodiment

[0079] explains the preferred embodiments of the invention below.

[0080] (the 1st embodiment; Refrigerator oil)

The refrigerator oil of the 1st embodiment of the present invention contains %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base (being designated hereinafter simply as " lubricant base of the present invention ") below 2.5.

[0081] %C of lubricant base of the present invention _A, as mentioned above, be below 2, be preferably below 1.5, more preferably below 1.If the %C of lubricant base _ASurpass above-mentioned higher limit, then viscosity-temperature profile, thermal oxidation stability and rubbing characteristics reduce.In addition, though the %C of lubricant base of the present invention _AAlso can be 0, but by making %C _ABe more than 0.1, can further improve the solvability of additive.

[0082] in addition, in the lubricant base of the present invention, %C _PWith %C _NRatio (%C _P/ %C _N), as mentioned above, be more than 6, more preferably more than 7.If %C _P/ %C _NLess than above-mentioned lower value, then viscosity-temperature profile, thermal oxidation stability and rubbing characteristics reduce, and then when cooperating additive in lubricant base, the effect of this additive reduces.In addition, %C _P/ %C _NBe preferably below 35, more preferably below 20, more preferably below 14, be preferably below 13 especially.By making %C _P/ %C _NBelow above-mentioned higher limit, can further improve the solvability of additive.

[0083] in addition, the %C of lubricant base of the present invention _PBe preferably more than 80, more preferably 82～99, more preferably 85～95, be preferably 87～93 especially.%C when lubricant base _PDuring less than above-mentioned lower value, viscosity-temperature profile, thermal oxidation stability and rubbing characteristics have the tendency of reduction, and then when cooperating additive in lubricant base, the effect of this additive has the tendency of reduction.In addition, if the %C of lubricant base _PSurpass above-mentioned higher limit, then the solvability of additive has the tendency of reduction.

[0084] in addition, the %C of lubricant base of the present invention _NBe preferably below 19, more preferably 5～15, more preferably 7～13, be preferably 8～12 especially.If the %C of lubricant base _NSurpass above-mentioned higher limit, then viscosity-temperature profile, thermal oxidation stability and rubbing characteristics have the tendency of reduction.In addition, if %C _NLess than above-mentioned lower value, then the solvability of additive has the tendency of reduction.

[0085] said %C among the present invention is described _P, %C _NAnd %C _AThat the method (n-d-M ring analysis) according to ASTM D 3238-85 of being meant is respectively obtained, paraffinic hydrocarbons carbon number with respect to the per-cent of total carbon number, naphthenic hydrocarbon carbon number with respect to the per-cent of total carbon number and aromatic series carbon number per-cent with respect to total carbon number.In a word, above-mentioned %C _P, %C _NAnd %C _APreferable range be the value of obtaining according to aforesaid method, even for example do not contain the lubricant base of naphthenic hydrocarbon composition, the %C that obtains by aforesaid method _NSometimes also express value greater than 0.

[0086] in addition, the iodine number of lubricant base of the present invention as mentioned above, is below 2.5, is preferably below 1.5, more preferably below 1, more preferably below 0.8; In addition, though also can be less than 0.01, from considering, be preferably more than 0.01, more preferably more than 0.1, more preferably more than 0.5 with the little viewpoint of its corresponding effect and from the relation of economy.By the iodine number that makes lubricant base is below 2.5, can increase substantially thermal oxidation stability.Illustrated that said among the present invention " iodine number " is meant the iodine number of the indicator titration method mensuration that adopts JISK 0070 " acid number of chemical preparations, saponification value, iodine number, hydroxyl value and non-saponification value ".

[0087] for lubricant base of the present invention, as long as its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, just do not have particular restriction.Specifically, can enumerate among following various base oils %C _A, %C _P/ %C _N, and iodine number satisfy the base oil of above-mentioned condition respectively, described base oil comprises by with those lubricating oil distillates that is obtained through air distillation and/or underpressure distillation by crude oil, adopt a kind of method being selected among the refinement treatment such as solvent deasphalting, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, hydrofining, sulfuric acid scrubbing, clay treatment individually or the method more than 2 kinds make with extra care in combination and the paraffinic mineral oil that obtains or N-alkanes hydro carbons base oil, isomeric alkane hydro carbons base oil etc.These lubricant bases can use a kind separately, and, also can will be used in combination more than 2 kinds.

[0088] as the preference of lubricant base of the present invention, can enumerate with following base oil (1)～(8) is raw material, this stock oil and/or the lubricating oil distillate that reclaims from this stock oil are made with extra care by specified process for purification, are reclaimed lubricating oil distillate wherein and the base oil that obtains:

(1) distilled oil that obtains through normal pressure distillation of paraffinic base quasi-oil and/or mixed base quasi-oil

(2) distilled oil (WVGO) that obtains through underpressure distillation of the air distillation residual oil of paraffinic base quasi-oil and/or mixed base quasi-oil

(3) wax that obtains by the lubricating oil dewaxing operation (soft wax etc.) and/or the synthetic wax (f-t synthetic wax, GTL wax etc.) that obtains by Sweet natural gas system synthetic oil (GTL) technology etc.

(4) be selected from the mixing oil more than a kind or 2 kinds in base oil (1)～(3) and/or the mild hydrocracking handling oil of this mixing oil

(5) be selected from the mixing oil more than 2 kinds in base oil (1)～(4)

(6) deasphalted oil (DAO) of base oil (1), (2), (3), (4) or (5)

(7) the mild hydrocracking handling oil (MHC) of base oil (6)

(8) be selected from the mixing oil more than 2 kinds in base oil (1)～(7).

[0089] illustrated, as above-mentioned specified process for purification, hydrofinings such as preferred hydrocracking, hydrofining; Furfural solvent extraction equal solvent is refining; Dewaxing such as solvent dewaxing or catalytic dewaxing; Utilize the clay-filtered of acidic white earth or atlapulgite etc.; Reagent such as sulfuric acid scrubbing, caustic soda washing (acid or alkali) washing etc.In the present invention, can use a kind in these process for purification separately, also can will be used in combination more than 2 kinds.In addition, when the process for purification more than 2 kinds was used in combination, it did not have particular restriction in proper order, can suitably select.

[0090] and then, as lubricant base of the present invention, especially preferably by the lubricating oil distillate that is selected from the base oil in above-mentioned base oil (1)～(8) or reclaim from this base oil being carried out following base oil (9) or (10) that predetermined process obtains.

(9) will be selected from the base oil in above-mentioned base oil (1)～(8) or the lubricating oil distillate that reclaims carries out hydrocracking from this base oil, wait and the lubricating oil distillate that reclaims carries out dewaxing treatment such as solvent dewaxing or catalytic dewaxing through distillation to its product or by its product, perhaps the hydrocracking mineral oil that is carrying out this dewaxing treatment and obtain after distill.

(10) lubricating oil distillate that is selected from the base oil in above-mentioned base oil (1)～(8) or reclaim from this base oil is carried out hydroisomerization, wait and the lubricating oil distillate that reclaims carries out dewaxing treatment such as solvent dewaxing or catalytic dewaxing through distillation to its product or by its product, perhaps the hydroisomerization mineral oil that is carrying out this dewaxing treatment and obtain after distill.

[0091] in addition, when obtaining the lubricant base of above-mentioned (9) or (10), in preferred step, as required, solvent treatment processing and/or hydrofining treatment process can also be set.

[0092] in addition, to above-mentioned hydrocracking, the catalyzer that uses during hydroisomerization does not have particular restriction, the preferred use by (for example by composite oxides with lytic activity, silica alumina, the aluminum oxide boron oxide, silicon-dioxide zirconium white etc.) or by the combination more than a kind of these composite oxides, the hydrocracking catalyst of the metal (for example the metal of periodictable VIa family or the metal of group VIII etc. are more than a kind) with hydrogenation ability is arranged with bond load on the carrier that forms of tackiness agent, perhaps containing zeolite (ZSM-5 for example, zeolite beta, SAPO-11 etc.) load has the hydroisomerisation catalysts that contains the metal with hydrogenation ability more than at least a kind in the group VIII metal on the carrier.Hydrocracking catalyst and hydroisomerisation catalysts can be used in combination it by laminated or mixing etc.

Reaction conditions during [0093] for hydrocracking, hydroisomerization does not have particular restriction, but is preferably set to: hydrogen dividing potential drop 0.1～20MPa, 150～450 ℃ of average reaction temperature, LHSV0.1～3.0hr ^-1, hydrogen/oil ratio 50～20000scf/b.

[0094] as the preparation method's of lubricant base of the present invention preference, can enumerate following preparation method A.

[0095] promptly, preparation method A of the present invention has following operation:

The 1st operation: prepare a kind of carrier, this carrier is carrying out NH ₃NH when the desorption temperature dependency is estimated under 300～800 ℃ ₃Desorption rate is with respect to NH ₃The per-cent of total desorption rate below 80%, make at least a kind at least a kind in the duty cycle table the VIa family metal and group VIII metal on this carrier, thereby obtain hydrocracking catalyst;

The 2nd operation: in the presence of hydrocracking catalyst, will contain the above stock oil of soft wax 50 volume % at hydrogen dividing potential drop 0.1～14MPa, 230～430 ℃ of average reaction temperature, LHSV0.3～3.0hr ^-1, hydrogen-oil ratio 50～14000scf/b condition under carry out hydrocracking;

The 3rd operation: the cracking generation oil of the 2nd operation gained is carried out fractionation by distillation, obtain lubricating oil distillate; With

The 4th operation: the lubricating oil distillate to the 3rd operation gained carries out dewaxing treatment.

[0096] below in detail, above-mentioned preparation method A is described in detail.

[0097] (stock oil)

In above-mentioned preparation method A, use and contain the above stock oil of soft wax 50 volume %.Illustrated, said among the present invention " contain soft wax 50 volume % above stock oil ", comprise the stock oil that only contains soft wax and the mixing oil that forms by soft wax and other stock oil and wherein contain more than the soft wax 50 volume % stock oil the two.

[0098] soft wax be a class when preparing lubricant base by the paraffin class lubricating oil distillate, the content of wax composition of by-product in the solvent dewaxing operation, in the present invention, soft wax also comprises by this content of wax composition being implemented further de-oiling handles the composition that obtains.The principal constituent of soft wax is the less branched paraffin (isoparaffin) of normal paraffin and side chain, and wherein naphthenic hydrocarbon composition or aromatic component are less.The kinematic viscosity of the soft wax that uses when blending stock oil can suitably be selected according to the kinematic viscosity of target lube base oil, during as the low viscosity base oil of lubricant base of the present invention, the kinematic viscosity when preferably adopting 100 ℃ is 2～25mm in preparation ²About/s, be preferably 2.5～20mm ²About/s, 3～15mm more preferably ²Soft wax about/s, that viscosity ratio is lower.In addition, other proterties of soft wax also can be arbitrarily, but fusing point is preferably 35～80 ℃, more preferably 45～70 ℃, more preferably 50～60 ℃.In addition, the oil-contg of soft wax is preferably below the 60 quality %, more preferably below the 50 quality %, more preferably below the 25 quality %, be preferably especially below the 10 quality %, and, be preferably more than the 0.5 quality %, more preferably more than the 1 quality %.In addition, the sulphur content of soft wax is preferably below the 1 quality %, more preferably below the 0.5 quality %, and, be preferably more than the 0.001 quality %.

[0099] at this moment, the oil-contg of the soft wax (hereinafter referred to as " soft wax A ") that the abundant de-oiling of process is handled is preferably 0.5～10 quality %, more preferably 1～8 quality %.In addition, the sulphur content of soft wax A is preferably 0.001～0.2 quality %, more preferably 0.01～0.15 quality %, more preferably 0.05～0.12 quality %.On the other hand, be preferably 10～60 quality % without the oil-contg that de-oiling is handled or inadequate soft wax (hereinafter referred to as " soft wax B ") is handled in de-oiling, more preferably 12～50 quality %, more preferably 15～25 quality %.In addition, the sulphur content of soft wax B is preferably 0.05～1 quality %, more preferably 0.1～0.5 quality %, more preferably 0.15～0.25 quality %.Illustrated that these soft waxs A, B also can implement desulfurization and handle according to the kind and the characteristic of hydrocracking/isomerization catalyst, the sulphur content of this occasion is preferably below the 0.01 quality %, more preferably below the 0.001 quality %.

[0100] in above-mentioned preparation method A,, can suitably obtain %C by using above-mentioned soft wax A as raw material _A, %C _P/ %C _NAnd iodine number satisfies the lubricant base of the present invention of above-mentioned condition respectively.In addition, according to above-mentioned preparation method A, even if use oil-contg or sulphur content than soft wax B higher, that purity is lower and cheap as raw material, also can obtain the high lubricant base of the good added value of viscosity index high and low temperature characteristic and thermal oxidation stability.

[0101] when stock oil is the mixing oil of soft wax and other stock oils, as these other stock oils, as long as soft wax in the mixing oil total amount shared ratio more than 50 volume %, just do not have particular restriction, preferably use the heavy air distillation distilled oil of crude oil and/or the mixing oil of underpressure distillation distilled oil.

[0102] in addition, when stock oil is the mixing oil of soft wax and other stock oils, from the viewpoint of base oil of preparation high viscosity index (HVI), soft wax in mixing oil shared ratio more preferably more than 70 volume %, further preferably more than 75 volume %.When this ratio during less than 50 volume %, the aromatic component in the gained lubricant base, the naphthenic hydrocarbon oil content that becomes to grade has the tendency of increase, and the viscosity index of lubricant base has the tendency of reduction.

[0103] on the other hand, viscosity index for the lubricant base guaranteeing to heavens to make, as with the heavy air distillation distilled oil and/or the underpressure distillation distilled oil of the crude oil of soft wax and usefulness, preferably in 300～570 ℃ distillation temperature scope, have the cut that distillates composition more than the 60 volume %.

[0104] (hydrocracking catalyst)

In above-mentioned preparation method A, can adopt a kind of like this hydrocracking catalyst, this catalyzer is by making those carry out NH ₃NH when the desorption temperature dependency is estimated under 300～800 ℃ ₃Desorption rate is with respect to NH ₃The per-cent of total desorption rate in the carrier loaded periodictable VIa family metal below 80% at least a kind and at least a kind of hydrocracking catalyst that forms in the group VIII metal.

[0105] herein, " NH ₃The desorption temperature dependency is estimated " be meant the method for introducing in the document (Murakami Y., Zeolites 1990; 10,532, Karge H.G., Dondur V., J.Phys.Chem.1990; 94,765 etc. for Sawa M., Niwa M.), step is carried out as described below.At first, with support of the catalyst in stream of nitrogen gas, pre-treatment under the temperature more than 400 ℃ more than 30 minutes so that remove the molecule of absorption, then at 100 ℃ of following absorption NH ₃Till saturated.Then, this support of the catalyst is heated up according to the heat-up rate below 10 ℃/minute in 100～800 ℃ temperature range, so that make NH ₃The NH that desorption and monitoring are separated owing to desorption under each assigned temperature ₃And, obtain the NH under 300 ℃～800 ℃ ₃Desorption rate is with respect to NH ₃The per-cent of total desorption rate (desorption rates under 100～800 ℃).

[0106] used support of the catalyst among the above-mentioned preparation method A is that those are carrying out above-mentioned NH ₃NH when the desorption temperature dependency is estimated under 300～800 ℃ ₃Desorption rate is with respect to NH ₃The per-cent of total desorption rate below 80%, preferably below 70%, more preferably at the carrier below 60%.By using this carrier to constitute hydrocracking catalyst, can the acid matter of domination lytic activity be suppressed fully, therefore by the hydrocracking effect, can so that the generation of the isoparaffin that is caused from the cracking isomerization of the high molecular normal paraffin in soft wax in the stock oil etc. can be efficiently and positively carry out, and, can also fully suppress the excessive fragmentation of the isoparaffin compound that generated.Its result can obtain enough amounts so that have the high molecule of the viscosity index of appropriate side chain chemical structure in the molecular weight ranges of appropriateness.

[0107] as this carrier, the binary oxide that is preferably amorphous-type and has acid matter, for example, can enumerate document (" metal oxide and catalyst action thereof ", clear water wise man the youth, the talk society, 1978) etc. in illustrated binary oxide.

[0108] wherein, preferably contain as the amorphous-type composite oxides, by 2 kinds in the oxide compound that is selected from the element among Al, B, Ba, Bi, Cd, Ga, La, Mg, Si, Ti, W, Y, Zn and the Zr acid binary oxides that are composited.Ratio by adjusting the various oxide compounds in these acid binary oxides etc. can obtain at above-mentioned NH ₃During adsorption desorption is estimated, meet the acid carrier of this purpose.Being illustrated that the acid binary oxide that constitutes this carrier both can be a kind in the above-mentioned oxide compound, also can be its mixture more than 2 kinds.In addition, this carrier both can be the carrier that is made of above-mentioned acid binary oxide, perhaps also can be by tackiness agent should the acidity binary oxide carrier that forms of bonding.

[0109] and then, this carrier preferably contains and is selected from the amorphous-type silica alumina, amorphous-type silicon-dioxide zirconium white, amorphous-type silicon-dioxide magnesium oxide, the amorphous-type silicon dioxide and titanium dioxide, amorphous-type silicon-dioxide boron oxide, the amorphous-type alumina zirconia, amorphous-type aluminum oxide magnesium oxide, amorphous-type aluminum oxide titanium dioxide, amorphous-type aluminum oxide boron oxide, amorphous-type zirconium white oxidation magnesium, amorphous-type zirconium white titanium dioxide, amorphous-type zirconium white oxidation boron, amorphous-type magnesium oxide titanium dioxide, at least a kind of acid binary oxide in amorphous-type magnesium oxide boron oxide and the amorphous-type titanium oxide boron oxide.The acid binary oxide that constitutes this carrier both can be a kind of above-mentioned binary oxide, also can be the mixture more than 2 kinds.In addition, this carrier both can be the carrier that contains above-mentioned acid binary oxide, perhaps also can be by should the acidity binary oxide with tackiness agent the carrier that forms of bonding.As tackiness agent, so long as be generally used for preparing the tackiness agent of catalyzer, just there is not particular restriction, be preferably selected from silicon-dioxide, aluminum oxide, magnesium oxide, titanium dioxide, zirconium white, clay or their mixture etc.

[0110] according to above-mentioned preparation method A, by in the metal (nickel, cobalt, palladium, platinum etc.) of at least a kind in the metal (molybdenum, chromium, tungsten etc.) that makes above-mentioned carrier loaded periodictable VIa family and group VIII at least a kind just can constitute hydrocracking catalyst.These metals are the metals with hydrogenation ability, when the scission reaction or the branching reaction termination that are used for making paraffin compound by acid carrier, when generation had the isoparaffin of appropriate molecular weight and appropriate branched structure, above-mentioned metal played an important role.

[0111] as the charge capacity of the metal in the hydrocracking catalyst, the charge capacity of VIa family metal is preferably every kind of metal 5～30 quality %, and the charge capacity of group VIII metal is preferably every kind of metal 0.2～10 quality %.

[0112] and then, in the used hydrocracking catalyst of above-mentioned preparation method A, the metal more than a kind as VIa family metal, be more preferably the molybdenum of content in 5～30 quality % scopes, in addition, as the metal more than a kind of group VIII metal, be more preferably the nickel of content in 0.2～10 quality % scope.

[0113] by above-mentioned carrier and VIa family metal more than a kind and the hydrocracking catalyst that constitutes of the metal more than a kind of group VIII metal, preferably be used for hydrocracking with sulfided state.Sulfidizing can adopt known method to carry out.

[0114] (hydrocracking operation)

According to above-mentioned preparation method A, by in the presence of above-mentioned hydrocracking catalyst, make and contain the above stock oil of soft wax 50 volume %, be 0.1～14MPa in the hydrogen dividing potential drop, be preferably 1～14MPa, 2～7MPa more preferably; Average reaction temperature is 230～430 ℃, is preferably 330～400 ℃, more preferably 350～390 ℃; LHSV is 0.3～3.0hr ^-1, be preferably 0.5～2.0hr ^-1Hydrogen-oil ratio is 50～14000scf/b, is preferably under the condition of 100～5000scf/b, carries out hydrocracking.

[0115] according to above-mentioned hydrocracking operation, in the normal paraffin cracked process that makes from the soft wax in the stock oil, by carrying out isomerization to isoparaffin, it is low to generate pour point, and the isoparaffin composition that viscosity index is high, simultaneously can make the aromatics that contains in the stock oil be cracked into monocyclic aromatic compound as the high viscosity index (HVI) obstruction factor, cyclanes compound and paraffin compound, and, the polycyclic naphthene hydrocarbon compound as the high viscosity index (HVI) obstruction factor can be cracked into single-ring naphthene compound or paraffin compound.Illustrated, considered that from the viewpoint of high viscosity indexization the compound that boiling point height in the preferred feedstock oil and viscosity index are low is few more good more.

[0116] in addition, the cleavage rate that is used for the evaluation response progress is defined by following formula:

(cleavage rate (volume %))=100-(boiling point in the product is in the ratio (volume %) of the cut more than 360 ℃)

Cleavage rate is preferably 3～90 volume %.Cleavage rate is during less than 3 volume %, owing to the high high molecular normal paraffin generation cracking isomerization of pour point contained in the stock oil causes the hydrocracking of the low aromatic component of the generation of isoparaffin and viscosity index, polycyclic naphthene hydrocarbon composition insufficient, in addition, when cleavage rate surpasses 90 volume %, the yield step-down of lubricating oil distillate, therefore all not preferred.

[0117] (fractionation by distillation operation)

Then, fractionation by distillation goes out lubricating oil distillate from the cracking generation oil that above-mentioned hydrocracking operation obtains.At this moment, often also can obtain oil fuel cut as light composition.

[0118] the oil fuel cut is fully to carry out desulfurization, denitrogenation, and fully carries out the cut that obtains behind the aromatic hydrogenation.Wherein, the isoparaffin composition in the naphtha fraction is many, the smoke point height of kerosene(oil)fraction, and the cetane value of diesel oil distillate is high, and the oil that acts as a fuel is high-quality.

[0119] on the other hand, when the hydrocracking of lubricating oil distillate is insufficient, a part wherein can be supplied in the hydrocracking operation once more.In addition, in order to obtain having the lubricating oil distillate of desired kinematic viscosity, can carry out underpressure distillation once more to lubricating oil distillate.Illustrated that this underpressure distillation separates and can carry out after having carried out dewaxing treatment as follows.

[0120] in the evaporation separation circuit, generates oil by cracking and carry out underpressure distillation, can suitably obtain being called the lubricant base of 70Pale, SAE10, SAE20 gained in the hydrocracking operation.

[0121] use the system of more low viscous soft wax as stock oil, be suitable for generating in a large number 70Pale, SAE10 cut, the full-bodied soft wax of use in above-mentioned scope is suitable for generating in a large number SAE20 as the system of stock oil.Yet, even if use full-bodied soft wax, also can be according to the condition that degree selects to generate a great deal of 70Pale, SAE10 of carrying out of scission reaction.

[0122] (dewaxing operation)

Owing in above-mentioned fractionation by distillation operation, generate the pour point height of oil content distilled lubricating oil distillate by cracking, so, can dewax in order to obtain having the lubricant base of desired pour point.Dewaxing treatment can adopt the method for routines such as solvent dewaxing process or catalytic dewaxing method to carry out.Wherein, solvent dewaxing process can adopt the mixed solvent of MEK, toluene usually, but also can adopt benzene, acetone, MIBK equal solvent.For the pour point that makes pressed oil reaches below-10 ℃, preferably under 1～6 times of solvent/oil ratio, filtration temperature-5～-45 ℃, preferred-10～-40 ℃ condition, carry out.Illustrated that the wax composition that is removed can supply to it in hydrocracking operation as soft wax once more here.

[0123] according to above-mentioned preparation method, also can added solvent refinement treatment and/or hydrofining processing in dewaxing treatment.These additional processing are carried out for the ultraviolet stability and the oxidation stability that improve lubricant base, therefore can adopt the method for using in the lube oil finishing operation of routine to carry out.

[0124] when solvent treatment, generally use furfural, phenol, N-Methyl pyrrolidone etc. to remove a small amount of aromatics residual in the lubricating oil distillate, particularly polycyclc aromatic compound as solvent.

[0125] in addition, hydrofining is for olefin(e) compound and aromatics hydrogenation and carry out, catalyzer is not particularly limited, the aluminium oxide catalyst that in the molybdenum grade in an imperial examination VIa family metal at least a kind and cobalt, the nickel grade in an imperial examination VIII family metal at least a kind can working load be arranged and form is at reaction pressure (hydrogen dividing potential drop) 7～16MPa, 300～390 ℃ of average reaction temperature, LHSV 0.5～4.0hr ^-1Condition under carry out.

[0126] in addition, as the preparation method's of lubricant base of the present invention preference, can enumerate following preparation method B.

[0127] promptly, preparation method B of the present invention has:

In the presence of catalyzer, the stock oil that will contain the paraffinic hydrocarbon carries out the 5th operation of hydrocracking and/or hydroisomerization; With

Wait and the lubricating oil distillate of recovery carries out the 6th operation of dewaxing treatment through distillation with the product that obtains in the 5th operation or from its product.

[0128] is described in detail above-mentioned preparation method B below.

[0129] (stock oil)

In above-mentioned preparation method B, can use the stock oil that contains the paraffinic hydrocarbon.Illustrated that the present invention's so-called " paraffinic hydrocarbon " is meant the hydrocarbon of containing ratio more than 70 quality % of paraffin molecules.Carbon number for the paraffinic hydrocarbon does not have particular restriction, can use the paraffinic hydrocarbon about 10～100 usually.In addition, method for making for the paraffinic hydrocarbon does not have particular restriction, can use the various paraffinic hydrocarbon of petroleum-type and synthetic class, as particularly preferred paraffinic hydrocarbon, can enumerate the synthetic wax (f-t synthetic wax (FT wax), GTL wax etc.) that obtains by Sweet natural gas system synthetic oil (GTL) technology etc., wherein be preferably FT wax.In addition, preferably to contain with preferred 15～80, more preferably 20～50 the normal paraffin of carbon number be the wax of principal constituent to synthetic wax.

[0130] kinematic viscosity of the paraffinic hydrocarbon that uses in the stock oil blending can suitably be selected according to the kinematic viscosity of target lube base oil, during as the low viscosity base oil of lubricant base of the present invention, the kinematic viscosity when being desirably in 100 ℃ is 2～25mm in preparation ²About/s, be preferably 2.5～20mm ²About/s, 3～15mm more preferably ²Paraffinic hydrocarbon about/s, that viscosity ratio is lower.In addition, other proterties of paraffinic hydrocarbon also can be arbitrarily, but when the paraffinic hydrocarbon was synthetic waxs such as FT wax, its fusing point was preferably 35～80 ℃, more preferably 50～80 ℃, and more preferably 60～80 ℃.In addition, the oil-contg of synthetic wax is preferably below the 10 quality %, more preferably below the 5 quality %, more preferably below the 2 quality %.In addition, the sulphur content of synthetic wax is preferably below the 0.01 quality %, more preferably below the 0.001 quality %, more preferably below the 0.0001 quality %.

[0131] when stock oil is the mixing oil of above-mentioned synthetic wax and other stock oils, as these other stock oils, as long as synthetic wax in the mixing oil total amount shared ratio more than 50 volume %, just do not have particular restriction, preferably use the heavy air distillation distilled oil of crude oil and/or the mixing oil of underpressure distillation distilled oil.

[0132] in addition, when stock oil is the mixing oil of above-mentioned synthetic wax and other stock oils, consider that from the viewpoint of the base oil of preparation high viscosity index (HVI) synthetic wax shared ratio in mixing oil is preferably more than the 70 volume %, more preferably more than the 75 volume %.This ratio is during less than 70 volume %, and aromatic component, the naphthenic hydrocarbon in the lubricant base of the obtaining oil content that becomes to grade has the tendency of increase, and the viscosity index of lubricant base has the tendency of reduction.

[0133] on the other hand, in order to guarantee the viscosity index of prepared lubricant base to heavens, as with the heavy air distillation distilled oil and/or the underpressure distillation distilled oil of the crude oil of synthetic wax and usefulness, preferably in 300～570 ℃ distillation temperature scope, have the cut that distillates composition more than the 60 volume %.

[0134] (catalyzer)

The catalyzer used for preparation method B do not have particular restriction, but preferred the use by load on containing the carrier of silico-aluminate has the catalyzer that forms more than a kind in periodictable VIb family's metal and the group VIII metal of being selected from as the reactive metal composition.

[0135] silico-aluminate is meant by these 3 kinds of metal oxides that element constitutes of aluminium, silicon and oxygen.In addition, in the scope of not damaging effect of the present invention, also can coexist with other metallic elements.At this moment, the content of other metallic elements in its oxide compound, is preferably below the 5 quality % of total amount of aluminum oxide and silicon-dioxide, more preferably below the 3 quality %.As coexisting metallic element, can enumerate for example titanium, lanthanum, manganese etc.

[0136] crystallinity of silico-aluminate also can be estimated according to the ratio of 4 coordination aluminium atoms in whole aluminium atoms, this ratio can by ²⁷The Al solid NMR is measured.As the used silico-aluminate of the present invention, with respect to the total amount of aluminium, the ratio of 4 coordination aluminium is preferably more than the 50 quality %, more preferably more than the 70 quality %, more preferably more than the 80 quality %.To be that silico-aluminate more than the 50 quality % is called " crystallized silicon aluminate " below with respect to the ratio of 4 coordination aluminium of aluminium total amount.

[0137], can use so-called zeolite as the crystallized silicon aluminate.As preferred example, can enumerate y-type zeolite, ultrastable Y (USY type zeolite), zeolite beta, mordenite, ZSM-5 etc., wherein, preferred especially USY zeolite.In the present invention, can use a kind in the crystallized silicon aluminate separately, also can will be used in combination more than 2 kinds.

[0138] as the preparation method who contains the carrier of crystallized silicon aluminate, can enumerate mixture forming, again with this formed body agglomerating method with crystallized silicon aluminate and tackiness agent.There is not particular restriction for employed tackiness agent, preferred aluminum oxide, silicon-dioxide, silica alumina, titanium dioxide, magnesium oxide, wherein preferred especially aluminum oxide.Usage ratio for tackiness agent does not have particular restriction, usually, is benchmark with the formed body total amount, is preferably 5～99 quality %, more preferably 20～99 quality %.The sintering temperature that contains the formed body of crystallized silicon aluminate and tackiness agent is preferably 430～470 ℃, and more preferably 440～460 ℃, more preferably 445～455 ℃.In addition, do not have particular restriction, be generally 1 minute～24 hours, be preferably 10 minutes～20 hours, more preferably 30 minutes～10 hours for sintering time.Sintering can carry out in air atmosphere, but preferably carries out in oxygen-free atmospheres such as nitrogen atmosphere.

[0139] in addition, as the VIb family metal that is carried on the above-mentioned carrier, can enumerate chromium, molybdenum, tungsten etc.; As the group VIII metal, can enumerate cobalt, nickel, rhodium, palladium, iridium, platinum etc. particularly.These metals can use a kind separately, perhaps will be used in combination more than 2 kinds.With the metallic combination more than 2 kinds the time, precious metals such as platinum, palladium can be made up mutually, also base metals such as nickel, cobalt, tungsten, molybdenum can be made up mutually, perhaps precious metal and base metal are made up mutually.

[0140] in addition, metal can adopt the method for carrying out processing such as ion-exchange in the solution that carrier impregnation is being contained metal to the load of carrier.The charge capacity of metal can suitably be selected, and usually, is benchmark with the catalyzer total amount, is suitably 0.05～2 quality %, is preferably 0.1～1 quality %.

[0141] (hydrocracking/hydroisomerization operation)

In above-mentioned preparation method B, in the presence of above-mentioned catalyzer, the stock oil that will contain the paraffinic hydrocarbon carries out hydrocracking/hydroisomerization.This hydrocracking/hydroisomerization operation can use fixed-bed reactor to carry out.As the condition of hydrocracking/hydroisomerization, for example preferred respectively temperature is 250～400 ℃, and hydrogen pressure is that the liquid hourly space velocity (LHSV) of 0.5～10MPa, stock oil is 0.5～10h ^-1

[0142] (fractionation by distillation operation)

Then, fractionation by distillation goes out lubricating oil distillate from the cracking generation oil that above-mentioned hydrocracking/the hydroisomerization operation obtains.Illustrated that the fractionation by distillation operation among the preparation method B is identical with fractionation by distillation operation among the preparation method A, so in this no longer repeat specification.

[0143] (dewaxing operation)

Then, dewax to generating the lubricating oil distillate that fractionates out the oil from cracking in the above-mentioned fractionation by distillation operation.This dewaxing operation can adopt known in the past dewaxing techniques such as solvent dewaxing or catalytic dewaxing to carry out.When before dewaxing, cracking/isomerization not being generated material and the high boiling substance isolating occasion of boiling point below 370 ℃ that exists in the oil, can give birth to olefiant purposes according to cracking/isomerization, whole hydroisomerization things are dewaxed, perhaps only the cut of boiling point more than 370 ℃ dewaxed.

[0144] in solvent dewaxing, the hydroisomerization thing is contacted with other solvent phase such as acetone and MEK, MIBK with the refrigerative ketone, and then, make the form precipitation of high pour point material with waxy solid with its cooling, this precipitation is separated from the lubricating oil distillate that contains solvent as raffinate oil.And then, raffinate oil is cooled off with the scraped surface deep freezer, remove the solids component of dewax.In addition, low molecular weight hydrocarbons such as propane also can be used for dewaxing, cracking/isomerization can be generated oil in this occasion and mix with low molecular weight hydrocarbon, and wherein at least a portion gasification generates oil cooling with cracking/isomerization again, makes the wax precipitation.Wax can separate from raffinate oil according to filtration, filter membrane or centrifugal separation etc.Then, from raffinate oil, remove and desolvate,, can obtain the target lube base oil the raffinate oil fractionation.

[0145] in addition, when carrying out catalytic dewaxing (catalyzer dewaxing), in the presence of suitable dewaxing catalyst, make cracking/isomerization generate oil under the condition for validity that can make depression of pour point with H-H reaction.In catalytic dewaxing, a part of high boiling substance in cracking/isomerization product is converted into low-boiling point material, this low-boiling point material is separated from heavier base oil fractions, and, obtained the lubricant base more than 2 kinds the base oil fractions fractionation.The separation of low-boiling point material can be carried out before obtaining the target lube base oil or in fractionation.

[0146] as dewaxing catalyst, as long as can make cracking/isomerization give birth to olefiant depression of pour point, just there is not particular restriction, preferably can generate the oil and obtain the target lube base oil with high yield from cracking/isomerization.As this dewaxing catalyst, be preferably shape-selective molecular sieve, can enumerate ferrierite, mordenite, ZSM-5, ZSM-11, ZSM-23, ZSM-35, ZSM-22 particularly and (also be known as θ ₁(シ- ワ Application) or TON), aluminosilicophosphate class (SAPO) etc.These molecular sieves preferably are used in combination with catalyst metal component, more preferably make up with precious metal.As preferred combination, can enumerate for example multiple joint compound of platinum and H-mordenite.

[0147] do not have particular restriction for the dewaxing condition, preferred respectively temperature is 200～500 ℃, and hydrogen pressure is 10～200 crust (1MPa～20MPa).In addition, when using flow through reactors, H ₂Processing speed is preferably 0.1～10kg/l/hr, and LHSV is preferably 0.1～10h ^-1, 0.2～2.0h more preferably ^-1In addition, dewaxing is that 350～400 ℃ material is converted to the material that has less than the boiling point of this initial boiling point and carries out by cracking/isomerization being generated initial boiling point below the common 40 quality % contained in the oil, below the preferred 30 quality % preferably.

[0148] more than, preparation method A and preparation method B as the preferred preparation method of lubricant base of the present invention are illustrated, but the preparation method of lubricant base of the present invention is not limited to this.For example, in above-mentioned preparation method A, also can adopt synthetic waxs such as FT wax, GTL wax to replace soft wax.And, in above-mentioned preparation method B, also can use the stock oil that contains soft wax (preferred soft wax A, B).And then, in preparation method A, B, also can and use soft wax (preferred soft wax A, B) and synthetic wax (preferred FT wax, GTL wax).

[0149] illustrated, when employed stock oil is the mixing oil of the stock oil beyond above-mentioned soft wax and/or synthetic wax and these wax when at preparation lubricant base of the present invention, the content of soft wax and/or synthetic wax is benchmark with the stock oil total amount, is preferably more than the 50 quality %.

[0150] in addition, as the stock oil that is used to prepare lubricant base of the present invention, be preferably the stock oil that contains soft wax and/or synthetic wax, oil-contg wherein is preferably below the 60 quality %, more preferably below the 50 quality %, more preferably below the 25 quality %.

[0151] in addition, the content of saturated composition in the lubricant base of the present invention is benchmark with the lubricant base total amount, is preferably more than the 90 quality %, more preferably more than the 93 quality %, more preferably more than the 95 quality %; In addition, the saturated composition of ring-type is shared ratio in this saturated composition, be preferably below the 40 quality %, and 0.1～40 quality % more preferably, more preferably 2～30 quality % further are preferably 5～25 quality %, are preferably 10～21 quality % especially.Satisfy above-mentioned condition respectively by content and the saturated composition of the ring-type shared ratio in this saturated composition that makes saturated composition, just can realize viscosity-temperature profile and thermal oxidation stability with higher level, in addition, when in this lubricant base, cooperating additive, this additive is fully stably dissolved and remain in the lubricant base, can bring into play the function of this additive again with higher level.And then, can improve the rubbing characteristics of lubricant base itself, its result can improve the effect that reduces friction, and then, can realize the raising of energy saving.

[0152] in addition, when the content of saturated composition during less than 90 quality %, viscosity-temperature profile, thermal oxidation stability and rubbing characteristics become insufficient.In addition, if the saturated composition of ring-type shared ratio in saturated composition surpasses 40 quality %, then when cooperating additive in lubricant base, the effect of this additive descends.And then, if the saturated composition of ring-type in saturated composition shared ratio less than 0.1 quality %, then when in lubricant base, cooperating additive, the solvability of this additive reduces, cause dissolving and remaining on the significant quantity reduction of this additive in the lubricant base, therefore can't effectively obtain the function of this additive.In addition, the content of saturated composition can be 100 quality %, but the deliquescent viewpoint consideration from reducing preparation cost and improving additive, be preferably below the 99.9 quality %, more preferably below the 99.5 quality %, more preferably below the 99 quality %, be preferably especially below the 98.5 quality %.

[0153] in lubricant base of the present invention, the saturated composition of ring-type shared ratio in this saturated composition is below the 40 quality %, and being equivalent to the saturated composition of non-annularity shared ratio in saturated composition is more than the 60 quality %.Herein, non-annularity is saturated to branch and comprises straight-chain paraffin composition and branched paraffin composition.There is not particular restriction for each paraffinic hydrocarbons composition shared ratio in lubricant base of the present invention, the branched paraffin components in proportions, with the lubricant base total amount is benchmark, be preferably 55～99 quality %, 57.5～96 quality % more preferably, more preferably 60～95 quality % further are preferably 70～92 quality %, are preferably 80～90 quality % especially.By making branched paraffin composition shared ratio in lubricant base satisfy above-mentioned condition, can further improve viscosity-temperature profile and thermal oxidation stability, and, when in this lubricant base, cooperating additive, both can fully and stably dissolve and keep this additive, simultaneously again can the further function of bringing into play this additive high-levelly.In addition, straight-chain paraffin composition shared ratio in lubricant base is a benchmark with the lubricant base total amount, is preferably below the 1 quality %, more preferably below the 0.5 quality %, more preferably below the 0.2 quality %.By making the straight-chain paraffin components in proportions satisfy above-mentioned condition, can obtain more excellent lubrication oil base oil of low temperature viscosity characteristic.

[0154] in addition, for in lubricant base of the present invention, 1 ring filling composition and the above saturated composition shared content in saturated composition of 2 rings do not have particular restriction, the above saturated composition shared ratio in saturated composition of 2 rings is preferably more than the 0.1 quality %, more preferably more than the 1 quality %, more preferably more than the 3 quality %, be preferably especially more than the 5 quality %; In addition, be preferably below the 40 quality %, more preferably below the 20 quality %, more preferably below the 15 quality %, be preferably especially below the 11 quality %.In addition, 1 ring filling composition shared ratio in saturated composition can be 0 quality %, but is preferably more than the 1 quality %, more preferably more than the 2 quality %, more preferably more than the 3 quality %, is preferably especially more than the 4 quality %; In addition, be preferably below the 40 quality %, more preferably below the 20 quality %, more preferably below the 15 quality %, be preferably especially below the 11 quality %.

[0155] in addition, in lubricant base of the present invention, the quality (M of 1 contained ring filling composition in the saturated composition of ring-type _A) with the quality (M of the above saturated composition of 2 rings _B) ratio (M _A/ M _B), be preferably below 20, more preferably below 3, more preferably below 2, be preferably below 1 especially.In addition, M _A/ M _BCan be 0, but be preferably more than 0.1, more preferably more than 0.3, more preferably more than 0.5.By making M _A/ M _BSatisfy above-mentioned condition, can further take into account viscosity-temperature profile and thermal oxidation stability high-levelly.

[0156] in addition, in lubricant base of the present invention, the quality (M of 1 contained ring filling composition in the saturated composition of ring-type _A) with the quality (M of 2 ring filling compositions _c) ratio (M _A/ M _c), be preferably below 3, more preferably below 1.5, more preferably below 1.3, be preferably below 1.2 especially.In addition, M _A/ M _cCan be 0, but be preferably more than 0.1, more preferably more than 0.3, more preferably more than 0.5.By making M _A/ M _cSatisfy above-mentioned condition, can further take into account viscosity-temperature profile and thermal oxidation stability high-levelly.

Illustrated that [0157] content of said saturated composition is meant the value (unit: quality %) that measures according to ASTMD 2007-93 among the present invention.

Quality %) and paraffinic hydrocarbons composition (unit: quality %) [0158] in addition, the above saturated composition of the saturated composition of said ring-type among the present invention, 1 ring filling composition, 2 rings and the saturated composition of non-annularity shared ratio in saturated composition are meant the naphthenic hydrocarbon composition measured according to ASTM D 2786-91 (determination object: 1 ring～6 ring naphthenic hydrocarbon, unit: respectively.

[0159] in addition, straight-chain paraffin composition among the present invention in the said lubricant base is meant, to separating, extract the saturated composition that obtains according to the described method of above-mentioned ASTM D 2007-93, carry out gas chromatographic analysis by following condition, with straight-chain paraffin composition contained in this saturated composition identify, measured value quantitatively the time is the value that benchmark converts with the lubricant base total amount.Illustrated, identify, quantitatively the time, the biased sample of straight-chain paraffin that can adopt carbon number 5～50 is as standard model, contained straight-chain paraffin composition in saturated composition is obtained with respect to the ratio of total peak area value (removing from the peak area value in the thinner) according to the aggregate value of peak area suitable with each straight-chain paraffin in the color atlas.

(GC conditions)

Chromatographic column: the nonpolar chromatographic column of liquid phase (length 25mm, internal diameter 0.3mm φ, liquid phase film thickness 0.1 μ m)

The intensification condition: 50 ℃～400 ℃ (heat-up rate: 10 ℃/min)

Carrier gas: helium (linear velocity: 40cm/min)

Splitting ratio: 90/1

Sample injection rate: 0.5 μ L (being diluted to the injection rate of 20 times sample with dithiocarbonic anhydride)

[0160] in addition, the branched paraffin components in proportions in the lubricant base is meant, the difference that straight-chain paraffin contained in the saturated composition of non-annularity contained in the above-mentioned saturated composition and the above-mentioned saturated composition is become to divide is the value that benchmark converts by the lubricant base total amount.

[0161] illustrated, saturated composition is separated or the saturated composition of ring-type, non-annularity be saturated to grade when carrying out compositional analysis, can be used the similar approach that can obtain equifinality.For example, except that aforesaid method, can enumerate the method for the method described in the method described in the ASTM D 2425-93, the ASTM D 2549-91, high performance liquid chromatography (HPLC) or with method behind these method improvements etc.

[0162] in addition, the aromatic component in the lubricant base of the present invention is as long as can make %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition, just do not have particular restriction, be benchmark with the lubricant base total amount, be preferably below the 7 quality %, more preferably below the 5 quality %, more preferably below the 4 quality %, be preferably especially below the 3 quality %; In addition, be preferably more than the 0.1 quality %, more preferably more than the 0.5 quality %, more preferably more than the 1 quality %, be preferably especially more than the 1.5 quality %.When the content of aromatic component surpasses above-mentioned higher limit, viscosity-temperature profile, thermal oxidation stability and rubbing characteristics and anti-volatility and low temperature viscosity characteristic all have the tendency of reduction, and then when cooperating additive in lubricant base, the effect of this additive has the tendency of reduction.In addition, lubricant base of the present invention also can not contain aromatic component, but the content by making aromatic component can further improve the solvability of additive more than above-mentioned lower value.

Illustrated that [0163] said aromatic component is meant the value of measuring according to ASTM D2007-93 among the present invention.In the aromatic component, usually except alkylbenzene, alkylnaphthalene, comprise that also anthracene, phenanthrene and their alkylide and four above phenyl ring condense the compound that forms, pyridines, quinoline, phenol, aphthols etc. mutually and have heteroatomic aromatics etc.

[0164] in addition, the viscosity index of lubricant base of the present invention is preferably more than 110.If viscosity index is less than above-mentioned lower value, then viscosity-temperature profile and thermal oxidation stability and anti-volatility have the tendency of reduction.Illustrated that the preferable range of the viscosity index of lubricant base of the present invention depends on the viscosity grade of lubricant base, so hereinafter it is described in detail.

[0165] about other proterties of lubricant base of the present invention, needs only %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, just do not have particular restriction, lubricant base of the present invention preferably has following various proterties.

[0166] in addition, the sulphur content in the lubricant base of the present invention depends on the sulphur content in its raw material.For example, when use the synthetic wax composition that makes by Fischer-Tropsch reaction etc. such be substantially free of the raw material of sulphur the time, can obtain being substantially free of the lubricant base of sulphur.In addition, when soft wax that obtains in the treating process of using at lubricant base or the smart raw material that filters the sulfur-bearings such as Microcrystalline Wax that obtain in the journey, the sulphur content in the gained lubricant base is usually more than 100 quality ppm.In lubricant base of the present invention, consider that from further raising thermal oxidation stability and low sulfurized viewpoint sulphur content is preferably below the 100 quality ppm, more preferably below the 50 quality ppm, more preferably below the 10 quality ppm, be preferably especially below the 5 quality ppm.

[0167] in addition, consider that preferably use soft wax (gatch) etc. as raw material, at this moment, the sulphur content in the gained lubricant base is preferably below the 50 quality ppm, more preferably below the 10 quality ppm from the viewpoint that reduces cost.Illustrated that said sulphur content is meant the sulphur content of measuring according to JIS K 2541-1996 among the present invention.

[0168] in addition, do not have particular restriction, be preferably below the 5 quality ppm, more preferably below the 3 quality ppm, more preferably below the 1 quality ppm for the nitrogen content in the lubricant base of the present invention.When nitrogen content surpassed 5 quality ppm, thermal oxidation stability had the tendency of reduction.Illustrated that said nitrogen content is meant the nitrogen content of measuring according to JIS K2609-1990 among the present invention.

[0169] in addition, as long as the kinematic viscosity of lubricant base of the present invention is %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, just do not have particular restriction, its kinematic viscosity in the time of 100 ℃ is preferably 1.5～20mm ²/ s, more preferably 2.0～11mm ²/ s.The kinematic viscosity of lubricant base in the time of 100 ℃ is less than 1.5mm ²During/s, consider not preferred from the vaporization losses aspect.In addition, the kinematic viscosity of desire acquisition in the time of 100 ℃ surpasses 20mm ²During the lubricant base of/s, its yield reduces, even if use the occasion of pyroparaffine as raw material, also is difficult to improve cleavage rate, so not preferred.

[0170] in the present embodiment, preferably will the kinematic viscosity in the time of 100 ℃ be in lubricant base in the following ranges and waits by distillation and separate and use.

(I) kinematic viscosity in the time of 100 ℃ is preferably 1.5mm ²/ s is above extremely less than 3.5mm ²/ s, 2.0～3.0mm more preferably ²The lubricant base of/s

(II) kinematic viscosity in the time of 100 ℃ is preferably 3.0mm ²/ s is above extremely less than 4.5mm ²/ s, 3.5～4.1mm more preferably ²The lubricant base of/s

(III) kinematic viscosity in the time of 100 ℃ is preferably 4.5～20mm ²/ s, 4.8～11mm more preferably ²/ s, be preferably 5.5～8.0mm especially ²The lubricant base of/s.

[0171] in addition, the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃ is preferably 6.0～80mm ²/ s, more preferably 8.0～50mm ²/ s.In the present embodiment, preferably will the kinematic viscosity in the time of 40 ℃ be in lubricating oil distillate in the following ranges and wait by distillation and separate and use.

(IV) kinematic viscosity in the time of 40 ℃ is preferably 6.0mm ²/ s is above extremely less than 12mm ²/ s, 8.0～12mm more preferably ²The lubricant base of/s

(V) kinematic viscosity in the time of 40 ℃ is preferably 12mm ²/ s is above extremely less than 28mm ²/ s, 13～19mm more preferably ²The lubricant base of/s

(VI) kinematic viscosity in the time of 40 ℃ is preferably 28～50mm ²/ s, 29～45mm more preferably ²/ s, be preferably 30～40mm especially ²The lubricant base of/s.

[0172] by making above-mentioned lubricant base (I) and %C (IV) _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, its in the past lubricant base identical with viscosity grade is compared, especially the low temperature viscosity characteristic better, and significantly reduce viscous resistance and stir resistance.In addition, by cooperating pour point reducer, the BF viscosity in the time of can making-40 ℃ is below 2000mPas.Illustrated that the BF viscosity in the time of-40 ℃ is meant the viscosity of measuring according to JPI-5S-26-99.

[0173] in addition, by making above-mentioned lubricant base (II) and %C (V) _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, its in the past lubricant base identical with viscosity grade is compared, especially low temperature viscosity characteristic, anti-volatility and oilness are all better.For example, at lubricant base (II) with (V), the CCS viscosity in the time of can making-35 ℃ is below 3000mPas.

[0174] in addition, by making above-mentioned lubricant base (III) and %C (VI) _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, its in the past lubricant base identical with viscosity grade is compared, its low temperature viscosity characteristic, anti-volatility, thermal oxidation stability and oilness are all better.

[0175] and then, the kinematic viscosity of lubricant base of the present invention is preferably according to the selection that suit of the kind of the kind of the freezing air conditioner that uses refrigerator oil and cooling agent.For example, when using the refrigerator oil of the present embodiment in the freezing air conditioner that is using HFC cooling agent, the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃ is considered from the viewpoint of wear resistance, is preferably 12mm ²More than/the s, 15mm more preferably ²More than/the s, 22mm more preferably ²More than/the s; In addition, consider, be preferably 500mm from reducing the viewpoint that stirs resistance ²Below/the s, 320mm more preferably ²Below/the s, 220mm more preferably ²Below/the s, be preferably 150mm especially ²Below/the s.

[0176] when using Trimethylmethane to use the refrigerator oil of the present embodiment in as the refrigerator chamber (refrigerator) of hydro carbons cooling agent, the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃, the viewpoint consideration from efficiency is preferably 32mm ²Below/the s, 22mm more preferably ²Below/the s, 12mm more preferably ²Below/the s; In addition, consider, be preferably 4mm from the viewpoint of wear resistance ²More than/the s, 6mm more preferably ²More than/the s, 8mm more preferably ²More than/the s.

[0177] in addition, when using propane to use the refrigerator oil of the present embodiment in as the air conditioning machinery of hydro carbons cooling agent, the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃ is considered from the viewpoint of wear resistance, is preferably 12mm ²More than/the s, 22mm more preferably ²More than/the s, 32mm more preferably ²More than/the s.In addition, consider that from reducing the viewpoint that stirs resistance the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃ is preferably 450mm ²Below/the s, 320mm more preferably ²Below/the s, 220mm more preferably ²Below/the s, be preferably 150mm especially ²Below/the s.

[0178] in addition, when using the refrigerator oil of the present embodiment in the water-heater that is using carbon dioxide refrigerant, the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃ is considered from the viewpoint of stopping property, is preferably 22mm ²More than/the s, 32mm more preferably ²More than/the s, 40mm more preferably ²More than/the s.In addition, consider that from reducing the viewpoint that stirs resistance the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃ is preferably 450mm ²Below/the s, 320mm more preferably ²Below/the s, 220mm more preferably ²Below/the s, be preferably 150mm especially ²Below/the s.

[0179] viscosity index of lubricant base of the present invention is also relevant with the viscosity grade of lubricant base, and for example, above-mentioned lubricating oil (I) and viscosity index (IV) are preferably 105～130, and more preferably 110～125, more preferably 120～125.In addition, above-mentioned lubricant base (II) and viscosity index (V) are preferably 125～160, and more preferably 130～150, more preferably 135～150.In addition, above-mentioned lubricant base (III) and viscosity index (VI) are preferably 135～180, and more preferably 140～160.When viscosity index during less than above-mentioned lower value, viscosity-temperature profile and thermal oxidation stability and anti-volatility all have the tendency of reduction.In addition, when viscosity index surpassed above-mentioned higher limit, the low temperature viscosity characteristic had the tendency of reduction.

Illustrated that [0180] said viscosity index is meant the viscosity index of measuring according to JIS K2283-1993 among the present invention.

[0181] in addition, the specific refractory power of lubricant base of the present invention in the time of 20 ℃ is also relevant with the viscosity grade of lubricant base, for example, above-mentioned lubricant base (I) and (IV) specific refractory power in the time of 20 ℃ be preferably below 1.455, more preferably below 1.453, more preferably below 1.451.In addition, above-mentioned lubricant base (II) and (V) specific refractory power in the time of 20 ℃ be preferably below 1.460, more preferably below 1.457, more preferably below 1.455.In addition, above-mentioned lubricant base (III) and (VI) specific refractory power in the time of 20 ℃ be preferably below 1.465, more preferably below 1.463, more preferably below 1.460.When specific refractory power surpasses above-mentioned higher limit, viscosity-the temperature profile of this lubricant base and thermal oxidation stability and anti-volatility and low temperature viscosity characteristic all have the tendency of reduction, in addition, when cooperating additive in this lubricant base, the effect of this additive has the tendency of reduction.

[0182] in addition, the pour point of lubricant base of the present invention is also relevant with the viscosity grade of lubricant base, and for example, above-mentioned lubricant base (I) and pour point (IV) are preferably below-10 ℃, more preferably-12.5 ℃, more preferably-15 ℃ below.In addition, above-mentioned lubricant base (II) and pour point (V) are preferably below-10 ℃, more preferably-15 ℃ below, more preferably-17.5 ℃ below.In addition, above-mentioned lubricant base (III) and pour point (VI) are preferably below-10 ℃, more preferably-12.5 ℃ below, more preferably-15 ℃ below.When pour point surpasses above-mentioned higher limit, use the low-temperature fluidity of the lubricating oil integral body of this lubricant base that the tendency of reduction is arranged.Illustrated that said pour point is meant the pour point of measuring according to JIS K 2269-1987 among the present invention.

[0183] in addition, the CCS viscosity of lubricant base of the present invention in the time of-35 ℃ is also relevant with the viscosity grade of lubricant base, for example, above-mentioned lubricant base (I) and (IV) the CCS viscosity in the time of-35 ℃ be preferably below the 1000mPas.In addition, above-mentioned lubricant base (II) and (V) the CCS viscosity in the time of-35 ℃ be preferably below the 3000mPas, more preferably below the 2400mPas, more preferably below the 2000mPas.In addition, above-mentioned lubricant base (III) and (VI) the CCS viscosity in the time of-35 ℃ be preferably below the 15000mPas, more preferably below the 10000mPas.When the CCS viscosity when at-35 ℃ surpasses above-mentioned higher limit, use all low-temperature fluiditys of lubricating oil of this lubricant base that the tendency of reduction is arranged.Illustrated that said CCS viscosity in the time of-35 ℃ is meant the viscosity of measuring according to JIS K2010-1993 among the present invention.

[0184] in addition, the density (ρ of lubricant base of the present invention in the time of 15 ℃ ₁₅, unit: g/cm ³) also relevant with the viscosity grade of lubricant base, be preferably below the ρ value by following formula (1) expression promptly preferred ρ ₁₅≦ ρ.

ρ＝0.0025×kv100+0.820 (1)

[in the formula, kv100 represents the kinematic viscosity (mm of lubricant base in the time of 100 ℃ ²/ s)]

[0185] illustrated, worked as ρ ₁₅During ρ, viscosity-temperature profile and thermal oxidation stability and anti-volatility and low temperature viscosity characteristic all have the tendency of reduction, in addition, when cooperating additive in lubricant base, the effect of this additive has the tendency of reduction.

[0186] for example, above-mentioned lubricant base (I) and ρ (IV) ₁₅Be preferably 0.825g/cm ³Below, 0.820g/cm more preferably ³Below.In addition, above-mentioned lubricant base (II) and ρ (V) ₁₅Be preferably 0.835g/cm ³Below, 0.830g/cm more preferably ³Below.In addition, above-mentioned lubricant base (III) and ρ (VI) ₁₅Be preferably 0.840g/cm ³Below, 0.835g/cm more preferably ³Below.

Illustrated that [0187] said density in the time of 15 ℃ is meant the K2249-1995 according to JIS among the present invention, 15 ℃ of density of measuring down.

[0188] in addition, the aniline point of lubricant base of the present invention (AP (℃)) also relevant with the viscosity grade of lubricant base, be preferably more than the value of the A that represents by following formula (2) promptly preferred AP ≧ A.

A＝4.1×kv100+97 (2)

[in the formula, kv100 represents the kinematic viscosity (mm of lubricant base in the time of 100 ℃ ²/ s)]

Illustrated that [0189] when AP＜A, viscosity-temperature profile and thermal oxidation stability and anti-volatility and low temperature viscosity characteristic all have the tendency of reduction, in addition, when cooperating additive in lubricant base, the effect of this additive has the tendency of reduction.

[0190] for example, above-mentioned lubricant base (I) and AP (IV) are preferably more than 108 ℃, more preferably more than 110 ℃, more preferably more than 112 ℃.In addition, above-mentioned lubricant base (II) and AP (V) are preferably more than 113 ℃, more preferably more than 116 ℃, more preferably more than 118 ℃, are preferably especially more than 120 ℃.In addition, above-mentioned lubricant base (III) and AP (VI) are preferably more than 125 ℃, more preferably more than 127 ℃, more preferably more than 128 ℃.Illustrated that said aniline point is meant the aniline point of measuring according to JIS K 2256-1985 among the present invention.

[0191] in addition, NOACK steam output to lubricant base of the present invention does not have particular restriction, and for example, above-mentioned lubricant base (I) and NOACK steam output (IV) are preferably more than the 20 quality %, more preferably more than the 25 quality %, more preferably more than the 30 quality %; And, be preferably below the 50 quality %, more preferably below the 45 quality %, more preferably below the 42 quality %.In addition, above-mentioned lubricant base (II) and NOACK steam output (V) are preferably more than the 6 quality %, more preferably more than the 8 quality %, more preferably more than the 10 quality %; And, be preferably below the 20 quality %, more preferably below the 16 quality %, more preferably below the 15 quality %, be preferably especially below the 14 quality %.In addition, above-mentioned lubricant base (III) and NOACK steam output (VI) are preferably more than the 1 quality %, more preferably more than the 2 quality %; And, be preferably below the 8 quality %, more preferably below the 6 quality %, more preferably below the 4 quality %.When the NOACK steam output was lower than above-mentioned lower value, the low temperature viscosity characteristic had the tendency that is difficult to improve.In addition, if the NOACK steam output surpasses above-mentioned higher limit respectively, then when lubricant base was used as lubricating oil for IC engines etc., the vaporization losses quantitative change of lubricating oil was big, thereupon promotes poisoning of catalyst, so not preferred.Illustrated that said NOACK steam output is meant the evaporation loss of measuring according to ASTM D5800-95 among the present invention.

[0192] in addition, the distillation proterties of lubricant base of the present invention, preferably in the gas-chromatography distillation, initial boiling point (IBP) is 290～440 ℃, final boiling point (FBP) is 430～580 ℃, carry out rectifying by the cut more than a kind or 2 kinds in the cut that will be selected from above-mentioned distillation range, can obtain to have the lubricant base (I)～(III) of above-mentioned preferred viscosity ranges and (IV)～(VI).

[0193] for example, for above-mentioned lubricant base (I) and distillation proterties (IV), its initial boiling point (IBP) is preferably 260～360 ℃, and more preferably 300～350 ℃, more preferably 310～350 ℃.In addition, 10% recovered temperature (T10) is preferably 320～400 ℃, and more preferably 340～390 ℃, more preferably 350～380 ℃.In addition, 50% recovered temperature (T50) is preferably 350～430 ℃, and more preferably 360～410 ℃, more preferably 370～400 ℃.In addition, 90% recovered temperature (T90) is preferably 380～460 ℃, and more preferably 390～450 ℃, more preferably 400～440 ℃.In addition, final boiling point (FBP) is preferably 420～520 ℃, and more preferably 430～500 ℃, more preferably 440～480 ℃.In addition, T90-T10 is preferably 50～100 ℃, and more preferably 55～85 ℃, more preferably 60～70 ℃.In addition, FBP-IBP is preferably 100～250 ℃, and more preferably 110～220 ℃, more preferably 120～200 ℃.In addition, T10-IBP is preferably 10～80 ℃, and more preferably 15～60 ℃, more preferably 20～50 ℃.In addition, FBP-T90 is preferably 10～80 ℃, and more preferably 15～70 ℃, more preferably 20～60 ℃.

[0194] in addition, about above-mentioned lubricant base (II) and distillation proterties (V), its initial boiling point (IBP) is preferably 300～380 ℃, and more preferably 320～370 ℃, more preferably 330～360 ℃.In addition, 10% recovered temperature (T10) is preferably 340～420 ℃, and more preferably 350～410 ℃, more preferably 360～400 ℃.In addition, 50% recovered temperature (T50) is preferably 380～460 ℃, and more preferably 390～450 ℃, more preferably 400～460 ℃.In addition, 90% recovered temperature (T90) is preferably 440～500 ℃, and more preferably 450～490 ℃, more preferably 460～480 ℃.In addition, final boiling point (FBP) is preferably 460～540 ℃, and more preferably 470～530 ℃, more preferably 480～520 ℃.In addition, T90-T10 is preferably 50～100 ℃, and more preferably 60～95 ℃, more preferably 80～90 ℃.In addition, FBP-IBP is preferably 100～250 ℃, and more preferably 120～180 ℃, more preferably 130～160 ℃.In addition, T10-IBP is preferably 10～70 ℃, and more preferably 15～60 ℃, more preferably 20～50 ℃.In addition, FBP-T90 is preferably 10～50 ℃, and more preferably 20～40 ℃, more preferably 25～35 ℃.

[0195] in addition, about above-mentioned lubricant base (III) and distillation proterties (VI), its initial boiling point (IBP) is preferably 320～480 ℃, and more preferably 350～460 ℃, more preferably 380～440 ℃.In addition, 10% recovered temperature (T10) is preferably 420～500 ℃, and more preferably 430～480 ℃, more preferably 440～460 ℃.In addition, 50% recovered temperature (T50) is preferably 440～520 ℃, and more preferably 450～510 ℃, more preferably 460～490 ℃.In addition, 90% recovered temperature (T90) is preferably 470～550 ℃, and more preferably 480～540 ℃, more preferably 490～520 ℃.In addition, final boiling point (FBP) is preferably 500～580 ℃, and more preferably 510～570 ℃, more preferably 520～560 ℃.In addition, T90-T10 is preferably 50～120 ℃, and more preferably 55～100 ℃, more preferably 55～90 ℃.In addition, FBP-IBP is preferably 100～250 ℃, and more preferably 110～220 ℃, more preferably 115～200 ℃.In addition, T10-IBP is preferably 10～100 ℃, and more preferably 15～90 ℃, more preferably 20～50 ℃.In addition, FBP-T90 is preferably 10～50 ℃, and more preferably 20～40 ℃, more preferably 25～35 ℃.

[0196] in various lubricant base (I)～(VI), by IBP, T10, T50, T90, FBP, T90-T10, FBP-IBP, T10-IBP, FBP-T90 are set in the above-mentioned preferable range, can further improve low temperature viscosity, and further reduce vaporization losses.Illustrated,,, the yield of lubricant base is reduced, considered not preferred from the economy aspect if limit their distillation range narrow for all temps of T90-T10, FBP-IBP, T10-IBP and FBP-T90.

Illustrated that [0197] said IBP, T10, T50, T90 and FBP are meant the recovered temperature of measuring according to ASTM D 2887-97 respectively among the present invention.

[0198] in addition, the kish composition in the lubricant base of the present invention generally be in preparation technology, sneak into inevitably from metal ingredient contained in catalyzer and the raw material, preferably this kish composition is fully removed.For example, the content of Al, Mo, Ni is preferably respectively below the 1 quality ppm.When the content of these metal ingredients surpassed above-mentioned higher limit, there was the tendency that suffers damage in the function of the additive that is cooperated in the lubricant base.

Illustrated that [0199] said kish composition is meant the metal ingredient of measuring according to JPI-5S-38-2003 among the present invention.

[0200] in addition, lubricant base of the present invention is by making its %C _A, %C _P/ %C _N, and iodine number satisfy above-mentioned condition respectively, can realize good thermal oxidation stability, according to its kinematic viscosity, preferably demonstrate the following RBOT life-span.For example, above-mentioned lubricant base (I) and RBOT life-span (IV) are preferably more than the 300min, more preferably more than the 320min, more preferably more than the 330min.In addition, above-mentioned lubricant base (II) and RBOT life-span (V) are preferably more than the 350min, more preferably more than the 370min, more preferably more than the 380min.In addition, above-mentioned lubricant base (III) and RBOT life-span (VI) are preferably more than the 400min, more preferably more than the 410min, more preferably more than the 420min.When RBOT life-span during respectively less than above-mentioned lower value, the viscosity-temperature profile of lubricant base and thermal oxidation stability have the tendency of reduction, and then when cooperating additive in lubricant base, the effect of this additive has the tendency of reduction.

[0201] illustrated, among the present invention the said RBOT life-span be meant to a kind of by in lubricant base, adding 0.2 quality % phenol antioxidant (2,6-di-t-butyl-p-Cresol; DBPC) composition that forms is according to the RBOT value of JIS K 2514-1996 mensuration.

[0202] in the refrigerator oil of the present embodiment, can use the lubricant base of the invention described above separately, in addition, also can also using more than a kind or 2 kinds with lubricant base of the present invention and other base oils.Illustrated, with lubricant base of the present invention and other base oils and time spent, lubricant base of the present invention shared ratio in these mixed base oils is preferably more than the 30 quality %, more preferably more than the 50 quality %, more preferably more than the 70 quality %.

[0203] can not have particular restriction with other base oils of lubricant base of the present invention and usefulness for conduct, as the mineral oils base oil, for example can enumerating, the kinematic viscosity in the time of 100 ℃ is 1～100mm ²The solvent treatment mineral oil of/s, hydrocracking mineral oil, hydrorefined mineral oils, solvent dewaxing basis wet goods.

[0204] in addition, as synthetic class base oil, can enumerate poly-alpha olefins or its hydride, isobutylene oligomer or its hydride, isoparaffin, alkylbenzene, alkylnaphthalene, diester (pentanedioic acid double tridecyl ester, di-2-ethylhexyl adipate, diisodecyl adipate, hexanodioic acid double tridecyl ester, Diisooctyl Sebacate etc.), polyol ester (is selected from neopentyl glycol, trimethylolethane, TriMethylolPropane(TMP), tri hydroxy methyl butane, tetramethylolmethane, in the polyvalent alcohols such as dipentaerythritol at least a kind be selected from valeric acid, caproic acid, enanthic acid, sad, n-nonanoic acid, capric acid, oleic acid, isovaleric acid, 2 methyl caproic acid, 2-ethyl valeric acid, 2 ethyl hexanoic acid, 3,5, the monoesters of at least a kind of formation in the lipid acid such as 5-tri-methyl hexanoic acid, diester, three esters, four esters etc., and their mixtures more than 2 kinds), polyether polyols, polyvingl ether, the dialkyl group phenyl ether, polyphenylene oxide etc., wherein, preferred poly-alpha olefins.As poly-alpha olefins, typically can enumerate oligopolymer or the co-oligomer (1-octene oligopolymer, decylene oligomer, ethylene-propylene co-oligomer etc.) and their hydride of carbon number 2～32, preferred 6～16 alpha-olefin.

[0205] method for making for poly-alpha olefins does not have particular restriction, for example can enumerate, in the presence of the polymerizing catalyst of Knut Fridell-Kerafyrm thatch (Friedel-Crafts) catalyzer that contains the title complex that forms by aluminum chloride or boron trifluoride and water, alcohol (ethanol, propyl alcohol, butanols etc.), carboxylic acid or ester and so on, make the method for alpha-olefine polymerizing.

[0206] refrigerator oil of the present embodiment can only contain above-mentioned lubricant base, but in order further to improve its various performances, can further contain following various additives.

[0207] refrigerator oil of the present embodiment is considered from the viewpoint of further raising wear resistance, preferably also contains Phosphorus extreme pressure agent.As Phosphorus extreme pressure agent, can enumerate amine salt, chloro phosphoric acid ester, phosphorous acid ester, thiophosphatephosphorothioate of phosphoric acid ester, phosphate ester acid, phosphate ester acid etc.

[0208] in the above-mentioned Phosphorus extreme pressure agent, the amine salt of phosphoric acid ester, phosphate ester acid, phosphate ester acid, chloro phosphoric acid ester and phosphorous acid ester are all the ester or its derivative that are formed by phosphoric acid or phosphorous acid and alkanol, polyether-type alcohol.

[0209], can enumerate the tricresyl phosphate propyl ester as phosphoric acid ester, tributyl phosphate, TNPP tri n pentyl phosphate, tri hexyl phosphate, THP triheptylphosphate, trioctyl phosphate, trinonyl phosphate, tridecyl phosphate, tricresyl phosphate (undecyl) ester, tricresyl phosphate (dodecyl) ester, tricresyl phosphate (tridecyl) ester, tricresyl phosphate (tetradecyl) ester, tricresyl phosphate (pentadecyl) ester, tricresyl phosphate (hexadecyl) ester, tricresyl phosphate (heptadecyl) ester, tricresyl phosphate (octadecyl) ester, trioleyl phosphate, triphenylphosphate, Tritolyl Phosphate, tricresyl phosphate (xylyl) ester, phosphoric acid cresyl diphenyl ester, di(2-ethylhexyl)phosphate tolyl diphenyl ester etc.

[0210], can enumerate acid mono phosphoric acid ester propyl ester as phosphate ester acid, acid mono phosphoric acid ester butyl ester, the acid phosphoric acid single fifth ester, the own ester of acid mono phosphoric acid ester, acid mono phosphoric acid ester heptyl ester, the acid mono-octyl phosphate, acid mono phosphoric acid ester ester in the ninth of the ten Heavenly Stems, acid mono phosphoric acid ester ester in the last of the ten Heavenly stems, acid mono phosphoric acid ester undecyl ester, acid mono phosphoric acid ester dodecyl ester, acid mono phosphoric acid ester tridecyl ester, acid mono phosphoric acid ester tetradecyl ester, acid mono phosphoric acid ester pentadecyl ester, acid mono phosphoric acid ester cetyl ester, acid mono phosphoric acid ester heptadecyl ester, acid mono phosphoric acid ester stearyl, mono alkyl phosphates such as acid mono phosphoric acid ester oil base ester, dibutyl acid phosphate, acid di(2-ethylhexyl)phosphate pentyl ester, acid phosphoric acid dihexyl, acid di(2-ethylhexyl)phosphate heptyl ester, the acid dioctylphosphoric acid ester, acid di(2-ethylhexyl)phosphate ester in the ninth of the ten Heavenly Stems, the acid phosphoric acid didecyl ester, the two undecyl esters of acid phosphoric acid, the two dodecyl esters of acid phosphoric acid, acid phosphoric acid double tridecyl ester, the two tetradecyl esters of acid phosphoric acid, the two pentadecyl esters of acid phosphoric acid, acid phosphoric acid double hexadecyl ester, the two heptadecyl esters of acid phosphoric acid, the two stearyl of acid phosphoric acid, phosphate dialkyl esters such as acid di(2-ethylhexyl)phosphate oil base ester and di(2-ethylhexyl)phosphate (alkyl) aryl ester etc.

[0211], can enumerate salt that forms by amine such as above-mentioned phosphate ester acid and methylamine, ethamine, propylamine, butylamine, amylamine, hexylamine, heptyl amice, octylame, dimethylamine, diethylamine, dipropyl amine, dibutylamine, diamylamine, dihexylamine, two heptyl amices, Di-Octyl amine, Trimethylamine 99, triethylamine, tripropyl amine, Tributylamine, triamylamine, trihexylamine, three heptyl amices, trioctylamines etc. as the amine salt of phosphate ester acid.

[0212], can enumerate tricresyl phosphate (two chloropropyls) ester, tricresyl phosphate (chloroethyl) ester, tricresyl phosphate (chloro-phenyl-) ester, polyoxy alkylidene-two [two (chlorine alkyl)] phosphoric acid ester etc. as the chloro phosphoric acid ester.

[0213], can enumerate dibutyl phosphite as phosphorous acid ester, the phosphorous acid diamyl ester, the phosphorous acid dihexyl, phosphorous acid two heptyl esters, dioctyl phosphite, phosphorous acid ester in two ninth of the ten Heavenly Stems, didecyl phosphite, the two undecyl esters of phosphorous acid, the two dodecyl esters of phosphorous acid, phosphorous acid two oil base esters, the phosphorous acid diphenyl ester, phosphorous acid diformazan phenyl ester, tributyl phosphate, the tricresyl phosphite pentyl ester, the own ester of tricresyl phosphite, the tricresyl phosphite heptyl ester, the tricresyl phosphite monooctyl ester, tris(nonyl phenyl) phosphate, tridecyl phosphite, tricresyl phosphite (undecyl) ester, tricresyl phosphite (dodecyl) ester, tricresyl phosphite oil base ester, triphenyl phosphite, tricresyl phosphite etc.

[0214] as thiophosphatephosphorothioate, preferably by the compound of following general formula (4) expression.

[changing 1]

[in the formula, R ¹, R ²And R ³Can be identical or different, represent the alkyl of carbon number 1～24 separately].

[0215] as R ¹～R ³The alkyl of the carbon number 1～24 of expression can be enumerated alkyl, cycloalkyl, thiazolinyl, alkyl-cycloalkyl, aryl, alkylaryl, arylalkyl etc. particularly.

[0216] as alkyl, can enumerate for example alkyl such as methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl (these alkyl can be the straight chain shapes, also can be chains).

[0217], can enumerate carbon numbers such as cyclopentyl, cyclohexyl, suberyl for example and be 5～7 cycloalkyl as cycloalkyl.In addition, as the abovementioned alkyl cycloalkyl, can enumerate carbon numbers such as methylcyclopentyl, dimethylcyclopentyl, methylethyl cyclopentyl, diethyl cyclopentyl, methylcyclohexyl, Dimethylcyclohexyl, methylethyl cyclohexyl, diethyl cyclohexyl, methyl suberyl, dimethyl suberyl, methylethyl suberyl, diethyl suberyl for example and be 6～11 alkyl-cycloalkyl (alkyl the position of substitution on cycloalkyl also is arbitrarily).

[0218] as thiazolinyl, (these thiazolinyls can be the straight chain shapes for example can to enumerate thiazolinyls such as butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonene base, decene base, undecenyl, dodecenyl succinic, tridecylene base, tetradecene base, 15 carbene bases, cetene base, heptadecene base, vaccenic acid base, it also can be a chain, and the position of two keys also is arbitrarily).

[0219], can enumerate for example aryl such as phenyl, naphthyl as aryl.In addition, as the abovementioned alkyl aryl, (alkyl can be the straight chain shape can to enumerate carbon numbers such as tolyl, xylyl, ethylphenyl, propyl group phenyl, butyl phenyl, amyl group phenyl, hexyl phenyl, heptyl phenyl, octyl phenyl, nonyl phenyl, decyl phenyl, undecyl phenyl, dodecylphenyl for example and be 7～18 alkylaryl, it also can be a chain, and the position of substitution on aryl also is arbitrarily).

[0220], can enumerate carbon numbers such as benzyl, phenylethyl, phenyl propyl, phenyl butyl, phenylpentyl, phenyl hexyl for example and be 7～12 arylalkyl (these alkyl can be the straight chain shapes, also can be chains) as arylalkyl.

[0221] above-mentioned R ³～R ⁵The alkyl of the carbon number 1～24 of expression is preferably alkyl, aryl, alkylaryl, more preferably the alkyl of carbon number 4～18, the alkylaryl of carbon number 7～24, phenyl.

[0222] as the thiophosphatephosphorothioate of general formula (4) expression, can enumerate tributyl thiophosphate particularly, the thiophosphoric acid triamyl, the own ester of tri o cresyl thiophosphate, the tri o cresyl thiophosphate heptyl ester, the tri o cresyl thiophosphate monooctyl ester, tri o cresyl thiophosphate ester in the ninth of the ten Heavenly Stems, tri o cresyl thiophosphate ester in the last of the ten Heavenly stems, tri o cresyl thiophosphate (undecyl) ester, tri o cresyl thiophosphate (dodecyl) ester, tri o cresyl thiophosphate (tridecyl) ester, tri o cresyl thiophosphate (tetradecyl) ester, tri o cresyl thiophosphate (pentadecyl) ester, tri o cresyl thiophosphate (hexadecyl) ester, tri o cresyl thiophosphate (heptadecyl) ester, tri o cresyl thiophosphate (octadecyl) ester, tri o cresyl thiophosphate oil base ester, triphenyl-thiophosphate, thiophosphoric acid trimethylbenzene ester, tri o cresyl thiophosphate (xylyl) ester, thiophosphoric acid cresyl diphenyl ester, thiophosphoric acid xylyl diphenyl ester, tri o cresyl thiophosphate (n-propyl phenyl) ester, tri o cresyl thiophosphate (isopropyl phenyl) ester, tri o cresyl thiophosphate (n-butylphenyl) ester, tri o cresyl thiophosphate (isobutyl phenenyl) ester, tri o cresyl thiophosphate (secondary butyl phenenyl) ester, tri o cresyl thiophosphate (tert-butyl-phenyl) ester etc.In addition, also can use their mixture.

[0223] above-mentioned Phosphorus extreme pressure agent can use a kind separately, perhaps also can will be used in combination more than 2 kinds, if the Phosphorus extreme pressure agent beyond thiophosphatephosphorothioate and this thiophosphatephosphorothioate is used in combination, just can further improves the oilness of the refrigerator oil of the present embodiment.

[0224] content for the Phosphorus extreme pressure agent in the refrigerator oil of the present embodiment does not have particular restriction, is benchmark with the refrigerator oil total amount, is preferably more than the 0.01 quality %, more preferably more than the 0.1 quality %.When the content of Phosphorus extreme pressure agent during, owing to the oilness of using Phosphorus extreme pressure agent to bring improves the effect inadequate tendency that becomes less than 0.01 quality %.In addition, the content of Phosphorus extreme pressure agent is benchmark with the refrigerator oil total amount, is preferably below the 5 quality %, more preferably below the 3 quality %, more preferably below the 1 quality %.Even the content of Phosphorus extreme pressure agent surpasses 5 quality %, also can not get improving effect with the corresponding oilness of content, in addition, might damage the stability of refrigerator oil.

[0225] in addition, the refrigerator oil of the present embodiment also can further contain oiliness improver.As this oiliness improver, can enumerate alcohols oiliness improver, carboxylic-acid oiliness improver, ester class oiliness improver etc.Illustrated,, will in the explanation of the 3rd embodiment, be described in detail for oiliness improver.

[0226] in the refrigerator oil of the present embodiment, as oiliness improver, can use a kind in alcohols oiliness improver, carboxylic-acid oiliness improver and the ester class oiliness improver separately, perhaps, also can will be used in combination more than 2 kinds.

[0227] though the content of oiliness improver is arbitrarily, but considering from the viewpoint that the raising effect of wear resistance and rubbing characteristics is good, is benchmark to add up to total composition, is preferably more than the 0.01 quality %, more preferably more than the 0.05 quality %, more preferably more than the 0.1 quality %.In addition, about this content, from cooling agent atmosphere gas and the better viewpoint of the thermal oxidation stability of separating out preventing property and refrigerator oil at low temperatures consider, with the total composition is benchmark, be preferably below the 10 quality %, more preferably below the 7.5 quality %, more preferably below the 5 quality %.

[0228] in addition, the refrigerator oil of the present embodiment also can further contain epoxy compounds.Contain epoxy compounds in the refrigerator oil by making, can improve the stability of refrigerator oil.

[0229] as epoxy compounds, the preferred at least a kind of epoxy compounds from phenylglycidyl ether type epoxy compounds, alkyl glycidyl base ether type epoxy compounds, glycidyl esters type epoxy compounds, allyl group epoxy compounds, alkyl epoxy compound, alicyclic epoxy compound, epoxidized fatty acid monoesters and epoxidized vegetable oil, selecting that uses.

[0230], can enumerate phenylglycidyl ether or alkyl phenyl glycidyl ether particularly as phenylglycidyl ether type epoxy compounds.As said alkyl phenyl glycidyl ether herein, can enumerate and have the epoxy compounds that 1～3 carbon number is 1～13 alkyl, wherein, can enumerate as preference and to have the epoxy compounds that 1 carbon number is 4～10 alkyl, for example n-butylphenyl glycidyl ether, the isobutyl phenenyl glycidyl ether, the secondary butyl phenenyl glycidyl ether, the tert-butyl-phenyl glycidyl ether, the amyl group phenylglycidyl ether, the hexyl phenylglycidyl ether, the heptyl phenylglycidyl ether, the octyl phenyl glycidyl ether, the nonyl phenylglycidyl ether, decyl phenyl glycidyl ether etc.

[0231] as alkyl glycidyl base ether type epoxy compounds, can enumerate the decyl glycidyl ether particularly, the undecyl glycidyl ether, the dodecyl glycidyl ether, the tridecyl glycidyl ether, the tetradecyl glycidyl ether, 2-ethylhexyl glycidyl ether, the dimethyltrimethylene glycol diglycidyl ether, the trimethylolpropane tris glycidyl ether, tetramethylolmethane four glycidyl group ether, 1,6-hexylene glycol diglycidyl ether, Sorbitol Powder poly epihydric alcohol base ether, the polyalkylene glycol mono glycidyl ether, polyalkylene glycol diglycidyl ether etc.

[0232], can enumerate the compound of following general formula (5) expression particularly as glycidyl esters type epoxy compounds.

[changing 2]

[in the formula, R ⁴The alkyl of expression carbon number 1～18].

[0233] in the above-mentioned formula (5), as R ⁴The alkyl of the carbon number 1～18 of expression can be enumerated the alkyl of carbon number 1～18, the thiazolinyl of carbon number 2～18, the cycloalkyl of carbon number 5～7, the alkyl-cycloalkyl of carbon number 6～18, the aryl of carbon number 6～10, the alkylaryl of carbon number 7～18, the arylalkyl of carbon number 7～18 etc.Wherein, alkyl, thiazolinyl, the phenyl of carbon number 2～15 and the alkyl phenyl of preferred carbon number 5～15 with alkyl of carbon number 1～4.

[0234] in the glycidyl esters type epoxy compounds, as preference, for example can enumerate particularly, 2,2-dimethyl-octa acid glycidyl base ester, phenylformic acid glycidyl esters, p t butylbenzoic acid glycidyl esters, vinylformic acid glycidyl esters, methyl propenoic acid glycidyl base ester etc.

[0235], can enumerate 1 particularly, 2-epoxy styrene, alkyl-1,2-epoxy styrene etc. as the allyl group epoxy compounds.

[0236], can enumerate 1 particularly, 2-butylene oxide ring, 1,2-epoxy pentane, 1 as the alkyl epoxy compound, 2-epoxy hexane, 1,2-epoxy heptane, 1,2-octylene oxide, 1,2-epoxy nonane, 1,2-epoxy decane, 1,2-epoxy undecane, 1,2-epoxy dodecane, 1,2-epoxy tridecane, 1, the 2-epoxy tetradecane, 1,2-epoxy pentadecane, 1,2-epoxy n-Hexadecane, 1,2-epoxy heptadecane, 1,1,2-epoxy octadecane, 2-Disparmone, 1,2-epoxy eicosane etc.

[0237], can enumerate and directly constitute the compound of ester ring type ring by the carbon atom that constitutes epoxy group(ing) the compound that resembles following general formula (6) expression as the alicyclic epoxy compound.

[changing 3]

[0238] as the alicyclic epoxy compound, can enumerate 1 particularly, the 2-epoxy cyclohexane, 1, the 2-cyclopentane epoxide, 3,4-epoxycyclohexyl methyl-3, the 4-epoxycyclohexane carboxylate, two (3,4-epoxycyclohexyl methyl) adipic acid ester, external form-2,3-epoxy norbornane, two (3,4-epoxy-6-methyl cyclohexane ylmethyl) adipic acid ester, 2-(7-oxabicyclo [4.1.0] heptan-3-yl)-spiral shell (1,3-diox-5,3 '-[7] oxabicyclo [4.1.0] heptane, 4-(1 '-methyl epoxy ethyl)-1,2-epoxy-2-methylcyclohexane, 4-epoxy ethyl-1,2-epoxy cyclohexane etc.

[0239], can enumerate ester that the alcohol of the lipid acid of epoxidised carbon number 12～20 and carbon number 1～8 or phenol, alkylphenol form etc. particularly as the epoxidized fatty acid monoesters.Especially preferably use the butyl ester of epoxystearic acid, own ester, benzyl ester, cyclohexyl, methoxyl group ethyl ester, monooctyl ester, phenyl ester and butyl phenyl ester.

[0240], can enumerate the epoxy compounds of soybean oil, Semen Lini oil, cottonseed wet goods vegetables oil etc. particularly as epoxidized vegetable oil.

[0241] in these epoxy compounds, consider from the viewpoint of further raising thermal oxidation stability, preferred phenylglycidyl ether type epoxy compounds, glycidyl esters type epoxy compounds, alicyclic epoxy compound, epoxidized fatty acid monoesters, more preferably glycidyl esters type epoxy compounds, alicyclic epoxy compound.

[0242] in the present embodiment, can use a kind in the above-mentioned epoxy compounds separately, perhaps also can will be used in combination more than 2 kinds.

[0243] when containing above-mentioned epoxy compounds in the refrigerator oil of the present embodiment, its content not being had particular restriction, is benchmark with the refrigerator oil total amount, is preferably more than the 0.01 quality %, more preferably more than the 0.1 quality %.When the content of epoxy compounds during less than 0.01 quality %, the thermal oxidation stability of refrigerator oil improves the effect inadequate tendency that becomes.In addition, the content of epoxy compounds is benchmark with the refrigerator oil total amount, is preferably below the 5 quality %, more preferably below the 3 quality %, more preferably below the 1 quality %.If the content of epoxy compounds surpasses 5 quality %, the water absorbability of refrigerator oil will improve, thereby moisture is blended in the refrigeration system easily, exists can not effectively bring into play owing to use the tendency of the stability raising effect that epoxy compounds brought.

[0244] and then, in the refrigerator oil of the present embodiment, in order further to improve its performance, can also be as required, make wherein individually or several contain phenol antioxidant, phenyl-a-naphthylamine, N such as ditertbutylparacresol, dihydroxyphenyl propane, additives such as defoamers such as oiliness improvers such as extreme pressure agent, lipid acid, type siloxane, viscosity index improver, pour point reducer, detergent-dispersant additive such as anti-wear agents such as amine antioxidants, zinc dithiophosphate, chloroalkane hydrocarbon, sulphur compound such as N-two (2-naphthyl) Ursol D in combination.These content of additive are not had particular restriction, and their total content is benchmark with the refrigerator oil total amount, is preferably below the 10 quality %, more preferably below the 5 quality %.

[0245] volume specific resistance for the refrigerator oil of the present embodiment does not have particular determination, is preferably 1.0 * 10 ⁹More than the Ω cm.Especially, when being used for the hermetic type refrigerator, exist the tendency that needs high electrical insulating property.Illustrated that said volume specific resistance is meant the value of measuring according to JIS C 2101 " electric insulation oil test method " under 25 ℃ [Ω cm] herein.

[0246] and then, do not have particular determination for the moisture content of the refrigerator oil of the present embodiment, be benchmark with the refrigerator oil total amount, be preferably below the 200ppm, more preferably below the 100ppm, most preferably be below the 50ppm.Especially, when being used for the refrigerator of hermetic type, consider, require moisture content few from the thermal oxidation stability of refrigerator oil with to the viewpoint of the influence of electrical insulating property.

[0247] and then, acid number for the refrigerator oil of the present embodiment does not have particular determination, for the corrosion of metal that prevents to use in freezing air conditioner or the pipe arrangement, be preferably below the 0.5mgKOH/g, more preferably below the 0.3mgKOH/g, more preferably below the 0.1mgKOH/g, be preferably below the 0.05mgKOH/g especially.Illustrated that said acid number is meant the value of measuring according to JIS K 2501 " petroleum product and lubricating oil-neutralization value test method " [mgKOH/g] herein.

[0248] and then, do not have particular determination for the ash content of the refrigerator oil of the present embodiment, for the thermal hydrolysis stability of the refrigerator oil that improves the present embodiment, and suppress the generation of sludge etc., ash content is preferably below the 100ppm, more preferably below the 50ppm.Illustrated that in the present invention, ash content is meant the value of measuring according to JIS K 2272 " ash content of crude oil and petroleum product and sulphated ash test method " [ppm].

[0249] have the refrigerator oil of the present embodiment of above-mentioned formation, in the presence of cooling agent, can bring into play good wear resistance and rubbing characteristics, can realize the raising of long-term reliability of freezing air conditioner and energy-conservationization both.Herein, with the common cooling agent that uses of the refrigerator oil of the present embodiment, preferably use jointly with non-fluorine-containing ethers cooling agent such as fluorine-containing ethers cooling agent such as HFC cooling agent, perfluor ethers, dme and natural refrigerant such as carbonic acid gas or hydrocarbon.These cooling agent can use a kind separately, also can use with the mixture more than 2 kinds.

[0250], can enumerate carbon number 1～3, preferred 1～2 hydrogen fluorohydrocarbon as HFC cooling agent.Can enumerate for example methylene fluoride (HFC-32), trifluoromethane (HFC-23), pentafluoride ethane (HFC-125), 1 particularly, 1,2,2-Tetrafluoroethane (HFC-134), 1,1,1,2-Tetrafluoroethane (HFC-134a), 1,1,1-Halothane (HFC-143a), 1,1-C2H4F2 C2H4F2 HFC such as (HFC-152a) or their mixture more than 2 kinds etc.These cooling agent are according to purposes and require performance to suit to select, and as preference, can enumerate for example independent HFC-32; Independent HFC-23; Independent HFC-134a; Independent HFC-125; The mixture of HFC-134a/HFC-32=60～80 quality %/40～20 quality %; The mixture of HFC-32/HFC-125=40～70 quality %/60～30 quality %; The mixture of HFC-125/HFC-143a=40～60 quality %/60～40 quality %; The mixture of HFC-134a/HFC-32/HFC-125=60 quality %/30 quality %/10 quality %; The mixture of HFC-134a/HFC-32/HFC-125=40～70 quality %/15～35 quality %/5～40 quality %; The mixture of HFC-125/HFC-134a/HFC-143a=35～55 quality %/1～15 quality %/40～60 quality % etc.More specifically can enumerate the mixture of HFC-134a/HFC-32=70/30 quality %; The mixture of HFC-32/HFC-125=60/40 quality %; The mixture (R410A) of HFC-32/HFC-125=50/50 quality %; The mixture (R410B) of HFC-32/HFC-125=45/55 quality %; The mixture (R507C) of HFC-125/HFC-143a=50/50 quality %; The mixture of HFC-32/HFC-125/HFC-134a=30/10/60 quality %; The mixture (R407C) of HFC-32/HFC-125/HFC-134a=23/25/52 quality %; The mixture (R407E) of HFC-32/HFC-125/HFC-134a=25/15/60 quality %; The mixture (R404A) of HFC-125/HFC-134a/HFC-143a=44/4/52 quality % etc.

[0251] in addition, as natural refrigerant, can enumerate hydro carbons cooling agent, carbon dioxide refrigerant, ammonia etc.As hydro carbons cooling agent, preferably use under 25 ℃, 1 atmospheric condition cooling agent as gas.Be in particular carbon number 1～5, preferred 1～4 paraffinic hydrocarbons, naphthenic hydrocarbon, alkene or their mixture.Can enumerate methane, ethene, ethane, propylene, propane, cyclopropane, butane, Trimethylmethane, tetramethylene, methyl cyclopropane or mixture more than 2 kinds etc. in them particularly.Wherein, preferably propane, butane, Trimethylmethane or their mixture.

[0252] refrigerator oil of the present embodiment usually, in refrigerator (for example, freezing air conditioner), exists with the form with cooling agent blended refrigerator fluid composition as described above.In this fluid composition, refrigerator oil does not have particular restriction with the ratio that cooperates of cooling agent, and with respect to cooling agent 100 mass parts, refrigerator oil is preferably 1～500 mass parts, more preferably 2～400 mass parts.

[0253] refrigerator oil of the present embodiment can balance fully satisfies oilness, cooling agent intermiscibility, low-temperature fluidity, stability etc. well and all requires performance, can suitably be used for having the refrigerator of reciprocating type or revolving style of opening or semi closed type or hermetic type compressor or heat pump etc.Especially, in the occasion of the refrigerator that is used to use leaded bearing, can with high level take into account suppress plumbous from leaded bearing stripping and the stability of heat and chemistry.As refrigerating apparatus, the refrigerating unit, dwelling house that more specifically can enumerate car air-conditioner machine, moisture trap, refrigerator chamber, freezing and refrigeration warehouse, Vending Machine, show case, chemical device etc. with air conditioning machinery, box air conditioning machinery (package air conditioner), heat supply water with heat pump etc.And then the refrigerator oil of the present embodiment also can be used for the compressor of any form such as reciprocating type, rotary, centrifugal.

[0254] as the formation of refrigerant circulating system of the refrigerator oil that can suitably use the present embodiment, can enumerate typically coolant compressor, condenser, expansion gear, vaporizer are connected by stream respectively by this order, and in this stream, possess the formation of moisture eliminator as required.

[0255] as coolant compressor, can list: the engine that is made of rotor and stator is installed in storing the encloses container of refrigerator oil, is embedded in turning axle, the swivel bearing (leaded bearing) in the rotor and is situated between and be connected to compressor section on the engine, be trapped in the compressor of the high pressure vessel mode in the encloses container from the high pressure refrigerant gas of compressor section ejection by turning axle; And, the engine that is made of rotor and stator be installed in storing the encloses container of refrigerator oil, be embedded in turning axle in the rotor, swivel bearing (leaded bearing) and be connected to compressor section on the engine by turning axle, directly be discharged to the compressor etc. of the low pressure vessel mode outside the encloses container from the high pressure refrigerant gas of compressor section ejection.

[0256] as the insulation film that belongs to the electrical machine insulation system material of engine portion, be the crystalline plastic film of second-order transition temperature more than 50 ℃, particularly, preferably use from polyethylene terephthalate, polybutylene terephthalate, polyphenylene sulfide, polyether-ether-ketone, PEN, polyamidoimide, at least a insulation film of selecting in the polyimide, the perhaps high resin layer of cover glass transition temperature and the laminated film that forms on the low film of second-order transition temperature are because these films are difficult for taking place the deterioration of tensile strength characteristic and electrical insulation characteristics.In addition, as the magnetic wire that in engine portion, uses, the preferred magnetic wire that coats with the enamel paint of second-order transition temperature more than 120 ℃ that uses, for example can enumerate coat with individual layers such as polyester, polyester-imide, polymeric amide and polyamidoimides or be lower floor, be upper strata and the enamel paint encapsulated magnet wire of compound coating with the low layer of second-order transition temperature with the high layer of second-order transition temperature.As the bag of compound coating lacquer line, can to enumerate with the polyester-imide be lower floor, be the bag lacquer line (AI/EI) that the upper strata coats with the polyamidoimide; Be lower floor with the polyester, be the bag lacquer line (AI/PE) that coats of upper strata etc. with the polyamidoimide.

[0257], preferably uses the pore aperture as the siccative of filling in the moisture eliminator Below, the carbon dioxide absorptive capacity during the carbon dioxide dividing potential drop 250mmHg under 25 ℃ is the synthetic zeolite that is made of silicic acid, alkali aluminate bimetallic salt complex below 1.0%.Can enumerate clear trade(brand)name XH-9, XH-10, XH-11, the XH-600 etc. that make with (strain) of ユ ニ オ Application particularly.

[0258] (the 2nd embodiment; Compressor oil composition)

The compressor oil composition of the 2nd embodiment of the present invention contains lubricant base, antioxidant and the antimist agent of the invention described above.

Illustrated that [0259] in the compressor oil composition of the present embodiment, the scheme of lubricant base of the present invention is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0260] in addition, in the compressor oil composition of the present embodiment, can use the lubricant base of the invention described above separately, in addition, also can be with also using more than a kind or 2 kinds in lubricant base of the present invention and other base oils.Illustrated that the concrete example of other base oils and lubricant base of the present invention shared ratio in mixed base oil is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0261] in addition, the compressor oil composition of the present embodiment contains antioxidant.As this antioxidant, can enumerate organo-metallic class antioxidants such as amine antioxidants, phenol antioxidant, zinc dithiophosphate etc.Wherein, when in the lubricant base that is coupled to the invention described above, consider preferred amine antioxidants and phenol antioxidant from the viewpoint that can keep the oxidation-resistance under the high temperature more chronically.

[0262] as amine antioxidants, can enumerate phenyl-a-naphthylamine compounds, dialkyl diphenylamine compounds, benzylamine compound and polyamine compounds, wherein, preferred phenyl-a-naphthylamine compounds, alkyl diphenyl aminated compounds.

[0263], preferably uses the phenyl-a-naphthylamine of following general formula (7) expression as the phenyl-a-naphthylamine compounds.

[changing 4]

[in the formula (7), R ⁵The alkyl of the straight or branched of expression hydrogen atom or carbon number 1～16].

[0264] R in general formula (7) ⁵During for alkyl, this alkyl is the alkyl of the straight or branched of carbon number 1～16 as mentioned above.As this alkyl, can enumerate for example methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl and hexadecyl etc. (these alkyl can be the straight chain shapes, also can be chains) particularly.Illustrated, worked as R ¹Carbon number surpass at 16 o'clock, functional group's shared ratio in molecule diminishes, and might disadvantageous effect be arranged to antioxidant property.

[0265] R in general formula (7) ⁵During for alkyl, consider R from the viewpoint that solvability is good ⁵Be preferably the branched-chain alkyl of carbon number 8～16, more preferably by the branched-chain alkyl of the oligopolymer deutero-carbon number 8～16 of the alkene of carbon number 3 or 4.As the alkene of carbon number 3 or 4, can enumerate propylene, 1-butylene, 2-butylene and iso-butylene particularly, consider preferred propylene or iso-butylene from the viewpoint that solvability is good.In order to obtain better solvability, R ⁵More preferably by 2 polymers deutero-side chain octyl groups of iso-butylene, by 3 polymers deutero-side chain nonyls of propylene, by 3 polymers deutero-side chain dodecyls of iso-butylene, by 4 polymers deutero-side chain dodecyls of propylene or by 5 polymers deutero-side chain pentadecyls of propylene, especially preferably by 2 polymers deutero-side chain octyl groups of iso-butylene, by 3 polymers deutero-side chain dodecyls of iso-butylene or by 4 polymers deutero-side chain dodecyls of propylene.

[0266] as the phenyl-a-naphthylamine of general formula (7) expression, commercially available product can be used, perhaps also synthetics can be used.Synthetics can be by using friedel-crafts catalysts, and the reaction of carrying out the olefin oligomer of the alkene of the reaction of halogenated alkyl compounds of phenyl-a-naphthylamine and carbon number 1～16 or phenyl-a-naphthylamine and carbon number 2～16 or carbon number 2～16 easily synthesizes.As friedel-crafts catalysts, for example can use metal halides such as aluminum chloride, zinc chloride, iron(ic) chloride particularly; An acidic catalysts such as sulfuric acid, phosphoric acid, five phosphorus oxide, boron fluoride, acidic white earth, atlapulgite; Deng.

[0267], preferably uses the p of following general formula (8) expression, p '-dialkyl diphenylamine as the dialkyl diphenylamine compounds.

[changing 5]

[in the formula (8), R ⁶And R ⁷Can be identical or different, represent the alkyl of carbon number 1～16 separately].

[0268] as R ⁶And R ⁷The alkyl of expression, can enumerate methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl etc. (these alkyl can be the straight chain shapes, also can be chains) particularly.Wherein, consider from the viewpoint that can keep oxidation-resistance at high temperature more chronically, as R ⁶And R ⁷, the branched-chain alkyl of preferred carbon number 3～16, more preferably carbon number 3 or 4 alkene or by the branched-chain alkyl of its oligopolymer deutero-carbon number 3～16.As the alkene of carbon number 3 or 4, can enumerate propylene, 1-butylene, 2-butylene and iso-butylene etc. particularly, consider preferred propylene or iso-butylene from the viewpoint that can keep oxidation-resistance at high temperature more chronically.In addition, as R ⁶Perhaps R ⁷Consider from the viewpoint that obtains better oxidation-resistance, more preferably be sec.-propyl separately by propylene derived, by the iso-butylene deutero-tertiary butyl, 2 polymers deutero-side chain hexyls by propylene, 2 polymers deutero-side chain octyl groups by iso-butylene, 3 polymers deutero-side chain nonyls by propylene, 3 polymers deutero-side chain dodecyls by iso-butylene, by 4 polymers deutero-side chain dodecyls of propylene or by 5 polymers deutero-side chain pentadecyls of propylene, most preferably by the iso-butylene deutero-tertiary butyl, 2 polymers deutero-side chain hexyls by propylene, 2 polymers deutero-side chain octyl groups by iso-butylene, 3 polymers deutero-side chain nonyls by propylene, by 3 polymers deutero-side chain dodecyls of iso-butylene or by 4 polymers deutero-side chain dodecyls of propylene.

[0269] illustrated, if use R ⁶And R ⁷In a side or both sides be the compound of hydrogen atom, then might produce sludge owing to the oxidation of this compound itself.In addition, when the carbon number of alkyl surpassed 16, functional group's shared ratio in molecule diminished, and oxidation-resistance at high temperature might reduce.

[0270] p of general formula (8) expression, p '-dialkyl diphenylamine can be used commercially available product, perhaps also can use synthetics.Synthetics can be by using friedel-crafts catalysts, carry out the halogenated alkyl compounds of pentanoic and carbon number 1～16 and the reaction of pentanoic, perhaps the reaction of the alkene of the alkene of pentanoic and carbon number 2～16 or carbon number 2～16 or their oligopolymer comes easily synthetic.As friedel-crafts catalysts, can use illustrated metal halide or an acidic catalyst etc. in the explanation of phenyl-a-naphthylamine.

[0271] compound of above-mentioned general formula (7), (8) expression is aromatic amine.These aromatic amines can use a kind separately, also can the different mixture more than 2 kinds of utilization structure, consider from the viewpoint that can keep oxidation-resistance at high temperature more chronically, preferably with the phenyl-a-naphthylamine of general formula (7) expression and the p of general formula (8) expression, p '-dialkyl diphenylamine is also used.The ratio of mixture of this occasion is arbitrarily, by mass ratio, preferably is in 1/10～10/1 the scope.

[0272] as phenolic compound, can use alkylphenol compounds arbitrarily as the antioxidant use of lubricating oil, this is not had particular determination, can enumerate at least a kind of alkylphenol compound for example from the compound of following general formula (9), general formula (10) and general formula (11) expression, selecting as preference.

[0273] [changes 6]

[in the formula (9), R ⁸The alkyl of expression carbon number 1～4; R ⁹The alkyl of expression hydrogen atom or carbon number 1～4; R ¹⁰The alkyl of expression hydrogen atom, carbon number 1～4, by the following general formula (i) or the (ii) group of expression:

[changing 7]

(in the general formula (i), R ¹¹The alkylidene group of expression carbon number 1～6; R ¹²The alkyl or the thiazolinyl of expression carbon number 1～24).

[changing 8]

(general formula (ii) in, R ¹³The alkylidene group of expression carbon number 1～6; R ¹⁴The alkyl of expression carbon number 1～4; R ¹⁵The alkyl of expression hydrogen atom or carbon number 1～4; K represents 0 or 1)].

[0274] [changes 9]

[in the general formula (10), R ¹⁶And R ¹⁸Can be identical or different, represent the alkyl of carbon number 1～4 separately; R ¹⁷And R ¹⁹Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～4 separately; R ²⁰And R ²¹Can be identical or different, represent the alkylidene group of carbon number 1～6 separately; A represents the alkylidene group of carbon number 1～18 or the group of (iii) being represented by following general formula:

-R ²²-S-R ²³- (iii)

(general formula (iii) in, R ²²And R ²³Can be identical or different, represent the alkylidene group of carbon number 1～6 separately)].

[0275] [changes 10]

[in the general formula (11), R ²⁴The alkyl of expression carbon number 1～4; R ²⁵The alkyl of expression hydrogen atom or carbon number 1～4; R ²⁶The alkylidene group of expression carbon number 1～6 or the group of (iv) representing by following general formula:

[changing 11]

(general formula (iv) in, R ²⁷And R ²⁸Can be identical or different, represent the alkylidene group of carbon number 1～6 separately)].

[0276] in the compound of above-mentioned general formula (9) expression, for R ¹⁰Be the compound of the group of general formula (i) expression, the more preferably R in the general formula (i) ¹¹Be the alkylidene group of carbon number 1～2, R ¹²Be the straight chain shape or the branched-chain alkyl of carbon number 6～12, the R in the special preferred formula (i) ¹¹Be the alkylidene group of carbon number 1～2, R ¹²Branched-chain alkyl for carbon number 6～12.

[0277] in the compound by general formula (9) expression, below preferred compound is shown in.

[0278] as R ¹⁰The example of the compound during for the alkyl of carbon number 1～4 can be enumerated 2,6 ditertiary butyl p cresol, 2,6-di-t-butyl-4-ethylphenol etc.

[0279] as R ¹⁰The example of the compound during for the group of general formula (i) expression, can enumerate following compound: (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) n-hexyl acetate, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) methyl amyl acetate, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) positive heptyl ester of acetate, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) acetate isocyanate, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) acetate n-octyl, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) 2-ethyl hexyl ethanoate, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) acetate 2-ethylhexyl, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) n-nonyl acetate, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) vanoris, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) acetate ester in the positive last of the ten Heavenly stems, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) acetate isodecyl ester, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) acetate n-undecane base ester, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) different undecyl ester of acetate, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) acetate dodecyl ester, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) acetate Permethyl 99A. base ester, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) just own ester of propionic acid, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid dissident ester, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) positive heptyl ester of propionic acid, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid isocyanate, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid n-octyl, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) different monooctyl ester of propionic acid, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid 2-ethylhexyl, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid ester in the positive ninth of the ten Heavenly Stems, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid ester in the different ninth of the ten Heavenly Stems, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid ester in the positive last of the ten Heavenly stems, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid isodecyl ester, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid n-undecane base ester, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) different undecyl ester of propionic acid, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid dodecyl ester, (the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) propionic acid Permethyl 99A. base ester, (3,5-di-t-butyl-4-hydroxyphenyl) n-hexyl acetate, (3,5-di-t-butyl-4-hydroxyphenyl) methyl amyl acetate, (3,5-di-t-butyl-4-hydroxyphenyl) the positive heptyl ester of acetate, (3,5-di-t-butyl-4-hydroxyphenyl) acetate isocyanate, (3,5-di-t-butyl-4-hydroxyphenyl) acetate n-octyl, (3,5-di-t-butyl-4-hydroxyphenyl) 2-ethyl hexyl ethanoate, (3,5-di-t-butyl-4-hydroxyphenyl) acetate 2-ethylhexyl, (3,5-di-t-butyl-4-hydroxyphenyl) n-nonyl acetate, (3,5-di-t-butyl-4-hydroxyphenyl) vanoris, (3,5-di-t-butyl-4-hydroxyphenyl) acetate ester in the positive last of the ten Heavenly stems, (3,5-di-t-butyl-4-hydroxyphenyl) acetate isodecyl ester, (3,5-di-t-butyl-4-hydroxyphenyl) acetate n-undecane base ester, (3,5-di-t-butyl-4-hydroxyphenyl) the different undecyl ester of acetate, (3,5-di-t-butyl-4-hydroxyphenyl) acetate dodecyl ester, (3,5-di-t-butyl-4-hydroxyphenyl) acetate Permethyl 99A. base ester, (3,5-di-t-butyl-4-hydroxyphenyl) the just own ester of propionic acid, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid dissident ester, (3,5-di-t-butyl-4-hydroxyphenyl) the positive heptyl ester of propionic acid, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid isocyanate, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid n-octyl, (3,5-di-t-butyl-4-hydroxyphenyl) the different monooctyl ester of propionic acid, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid 2-ethylhexyl, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid ester in the positive ninth of the ten Heavenly Stems, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid ester in the different ninth of the ten Heavenly Stems, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid ester in the positive last of the ten Heavenly stems, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid isodecyl ester, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid n-undecane base ester, (3,5-di-t-butyl-4-hydroxyphenyl) the different undecyl ester of propionic acid, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid dodecyl ester, (3,5-di-t-butyl-4-hydroxyphenyl) propionic acid Permethyl 99A. base ester etc.

[0280] as R ¹⁰The example of the compound the during group (ii) represented for general formula, can enumerate two (3,5-di-t-butyl-4-hydroxyphenyl), two (3,5-di-t-butyl-4-hydroxyphenyl) methane, 1,1-two (3,5-di-t-butyl-4-hydroxyphenyl) ethane, 1, two (3, the 5-di-t-butyl-4-hydroxyphenyl) ethane, 1 of 2-, 1-two (3,5-di-t-butyl-4-hydroxyphenyl) propane, 1, two (3, the 5-di-t-butyl-4-hydroxyphenyl) propane, 1 of 2-, 3-two (3,5-di-t-butyl-4-hydroxyphenyl) propane, 2, two (3,5-di-t-butyl-4-hydroxyphenyl) propane of 2-etc.; And their mixture more than 2 kinds etc.

[0281] the following describes the alkylphenol of representing by general formula (10).

Particularly preferred compound when [0282] A in the general formula (10) is the alkylidene group of carbon number 1～18 is the compound of following formula (10-1) expression.

[changing 12]

[0283] in addition, the A in the general formula (10) be formula (iii) represent group the time particularly preferred compound, be the compound of following formula (10-2) expression.

[changing 13]

[0284] the following describes the alkylphenol of representing by general formula (11).

[0285], is in particular the following formula (11-1) or (11-2) compound of expression as the particularly preferred compound of the alkylphenol of general formula (11) expression.

[changing 14]

[changing 15]

[0286] content of antioxidant is benchmark with the total composition, is preferably 0.02～5 quality %, more preferably 0.1～3 quality %.When the content of antioxidant during less than 0.02 quality %, the thermal oxidation stability inadequate tendency that becomes.On the other hand, when surpassing 5 quality %, can not get the raising effect with the corresponding thermal oxidation stability of content, unfavorable economically, be not preferred therefore.

[0287] in addition, the compressor oil composition of the present embodiment contains antimist agent.As this antimist agent, the methacrylic ester of the alkyl of the preferred acrylate that uses the alkyl that contains carbon number 1～18, carbon number 1～18, alkene, vinylbenzene, vinyl toluene, maleic anhydride and their mixture more than 2 kinds of carbon number 2～20 are as constituting monomeric macromolecular compound.The weight-average molecular weight of this macromolecular compound is arbitrarily, is preferably 1,000～300,000, more preferably 5,000～100,000.

[0288] as antimist agent, can use the compound arbitrarily that uses as the antimist agent of lubricating oil, preference is as containing nitrogen containing monomer with ethylenic unsaturated bond multipolymer as copolymer composition.More specifically, preferably from following general formula (12-1), (12-2) or the monomer more than a kind or 2 kinds (hereinafter referred to as " monomer (M-1) ") (12-3) selected the compound of expression and the multipolymer that forms from following general formula (12-4) or the monomer more than a kind or 2 kinds (hereinafter referred to as " monomer (M-2) ") (12-5) selected the compound of expression.

[0289] [changes 16]

[in the formula, R ²⁹Expression hydrogen atom or methyl; R ³⁰The alkyl of expression carbon number 1～18].

[0290] [changes 17]

[in the formula, R ³¹Expression hydrogen atom or methyl; R ³²The alkyl of expression carbon number 1～12].

[0291] [changes 18]

[in the formula, Y ¹And Y ²Can be identical or different, represent the alkoxyl group of hydrogen atom, carbon number 1～18 or the alkyl monosubstituted amino of carbon number 1～18 separately].

[0292] [changes 19]

[in the formula, R ³³Expression hydrogen atom or methyl; R ³⁴The alkylidene group of expression carbon number 2～18; M represents 0 or 1; Y ³Expression contains the organic group of the carbon number 1～30 of nitrogen-atoms].

[0293] [changes 20]

[in the formula, R ³⁵Expression hydrogen atom or methyl; Y ⁴Expression contains the organic group of the carbon number 1～30 of nitrogen-atoms].

[0294] conduct is by the R in the general formula (12-1) ³⁰The alkyl of the carbon number 1～18 of expression, can enumerate alkyl such as methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl (these alkyl can be the straight chain shapes, also can be chains) particularly.

[0295] conduct is by the R in the general formula (12-2) ³²The alkyl of the carbon number 1～12 of expression can be enumerated alkyl such as methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl (these alkyl can be the straight chain shapes, also can be chains) particularly; Thiazolinyls such as butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonene base, decene base, undecenyl, dodecenyl succinic (these thiazolinyls can be the straight chain shapes, also can be chains); Carbon numbers such as cyclopentyl, cyclohexyl, suberyl are 5～7 cycloalkyl; Carbon numbers such as methylcyclopentyl, dimethylcyclopentyl, methylethyl cyclopentyl, diethyl cyclopentyl, methylcyclohexyl, Dimethylcyclohexyl, methylethyl cyclohexyl, diethyl cyclohexyl, methyl suberyl, dimethyl suberyl, methylethyl suberyl, diethyl suberyl are that (alkyl can be the straight chain shape for 6～11 alkyl-cycloalkyl, also can be a chain, and the bonding position on this cycloalkyl also be arbitrarily); Aryl such as phenyl, naphthyl; Carbon numbers such as tolyl, xylyl, ethylphenyl, propyl group phenyl, butyl phenyl, amyl group phenyl, hexyl phenyl are that (alkyl can be the straight chain shape for 7～12 various alkylaryls, also can be a chain, and the bonding position on this aryl also be arbitrarily); Carbon numbers such as benzyl, phenylethyl, phenyl propyl, phenyl butyl, phenylpentyl, phenyl hexyl are 7～12 arylalkyl (alkyl can be the straight chain shape, also can be a chain, and the bonding position of alkyl on aryl also is arbitrarily) etc.

[0296] by the Y in the general formula (12-3) ¹And Y ²The alkoxyl group of carbon number 1～18 of expression is to remove hydrogen atom and the residue (OR that obtains from the hydroxyl of the alkyl alcohol of carbon number 1～18 ³⁶R ³⁶Alkyl for carbon number 1～18).As R ³⁶The alkyl of the carbon number 1～18 of expression can be enumerated the R in general formula (12-1) ³⁹Illustrated alkyl in the explanation of the alkyl of the carbon number 1～18 of expression.

[0297] by the Y in the general formula (12-3) ¹And Y ²The alkyl monosubstituted amino of carbon number 1～18 of expression is to remove hydrogen atom and the residue (NHR that obtains from the amino of the monoalkylamine of carbon number 1～18 ³⁷R ³⁷Alkyl for carbon number 1～18).As R ³³The alkyl of the carbon number 1～18 of expression can be enumerated the R in general formula (12-1) ³⁰Illustrated alkyl in the explanation of the alkyl of the carbon number 1～18 of expression.

[0298] in the general formula (12-4), as R ³⁴The alkylidene group of the carbon number 2～18 of expression, can enumerate alkylidene groups such as ethylidene, propylidene, butylidene, pentylidene, hexylidene, inferior heptyl, octylene, nonamethylene, inferior decyl, inferior undecyl, inferior dodecyl, inferior tridecyl, inferior tetradecyl, inferior pentadecyl, inferior hexadecyl, inferior heptadecyl, inferior octadecyl (these alkylidene groups can be the straight chain shapes, also can be chains) etc. particularly.

[0299] Y in the general formula (12-4) ³And the Y in the general formula (12-5) ⁴, the organic group of the carbon number 1～30 that contains nitrogen-atoms of respectively doing for oneself.Y ³And Y ⁴The number of the nitrogen-atoms that organic group had of expression does not have particular restriction, is preferably 1.In addition, Y ³And Y ⁴The carbon number of organic group of expression as mentioned above, is 1～30, is preferably 1～20, more preferably 1～16.

[0300] conduct is by Y ³And Y ⁴The organic group of expression is preferably the group that also contains Sauerstoffatom, in addition, is preferably the group with ring.Especially, consider from the viewpoint of anti-sludge, by Y ³And Y ⁴The organic group of expression preferably has the ring that contains Sauerstoffatom.In addition, when by Y ³And Y ⁴The organic group of expression is that this ring can be any in aliphatics ring or the aromatic ring when having the group of ring, is preferably the aliphatics ring.And then, by Y ³And Y ⁴The ring that organic group had of expression is considered from the viewpoint of anti-sludge, is preferably 6 yuan of rings.

[0301] conduct is by Y ³And Y ⁴The organic group of expression, can enumerate dimethylamino, diethylin, dipropyl amino, dibutylamino, anilino, toluene amido, dimethylbenzene amido, kharophen, benzamido, morpholinyl, pyrryl, pyrrolinyl, pyridyl, picolyl, pyrrolidyl, piperidyl, quinonyl, pyrrolidone-base (pyrrolidonyl), pyrrolidone-base (pyrrolidono), imidazolinyl, pyrazinyl etc. particularly, wherein, preferred especially morpholinyl.

[0302], can enumerate the methacrylic ester, alkene, vinylbenzene, vinyl toluene, maleic anhydride ester, maleic anhydride acid amides and their mixture etc. of carbon number 2～20 of alkyl of acrylate, the carbon number 1～18 of the alkyl of carbon number 1～18 as the preference of the compound of above-mentioned general formula (12-1)～(12-3) expression.

[0303] in addition, as the above-mentioned general formula (12-4) or (12-5) preference of compound of expression, can enumerate dimethylaminoethyl acrylate methyl amino methyl, methacrylic acid diethylin methyl esters, dimethylaminoethyl methacrylate, diethylaminoethyl methacrylate, 2-methyl-5-vinylpyrine, methacrylic acid morpholino methyl esters, methacrylic acid morpholino ethyl ester, N-vinyl pyrrolidone and their mixture etc.

[0304] in the compound of above-mentioned general formula (12-1)～(12-3) expression, consider from the viewpoint of viscosity-temperature profile, as monomer (M-1), the compound of preferred formula (12-1) expression.On the other hand,, consider above-mentioned general formula (12-4) or (12-5) in the compound of expression, the compound of preferred formula (12-4) expression from the viewpoint of anti-sludge as monomer (M-2).

[0305] when monomer (M-1) and monomer (M-2) copolymerization, monomer (M-1) is arbitrarily with the polymerization of monomer (M-2) than (mol ratio), is preferably in the scope of 80:20～95:5.In addition, the reaction method of copolymerization also is arbitrarily, normally by in the presence of polymerization starters such as benzoyl peroxide, making monomer (M-1) and monomer (M-2) carry out free radical solution polymerization, and can be easily and positively obtain the purpose multipolymer.The weight-average molecular weight of the multipolymer that obtains also is arbitrarily, is preferably 1,000～300,000, more preferably 5,000～100,000.

[0306] content of the antimist agent in the compressor oil composition of the present embodiment is benchmark with the total composition, is preferably below the 5 quality %, more preferably below the 1 quality %, more preferably below the 0.5 quality %.Even the content of antimist agent surpasses above-mentioned higher limit, also can't see and the corresponding effect that further improves anti-mist of oil of content, in addition, cause that viscosity reduces owing to shear, be not preferred therefore.In addition, the content of antimist agent is benchmark with the total composition, is preferably more than the 0.01 quality %, more preferably more than the 0.03 quality %, more preferably more than the 0.05 quality %.When the content of antimist agent is lower than above-mentioned lower value, the inadequate tendency because the raising effect of the anti-mist of oil that its interpolation brings becomes.

[0307] compressor oil composition of the present embodiment can contain above-mentioned lubricant base, antioxidant and antimist agent, in order further to improve its characteristic, also can further contain following various additives.

[0308] compressor oil composition of the present embodiment is considered from the viewpoint that can further improve its wear resistance, withstand load ability, also can further contain Phosphorus extreme pressure agent and/or thiophosphatephosphorothioate.Phosphorus extreme pressure agent and thiophosphatephosphorothioate (concrete example of ホ ス Off オ ロ チ オ ネ-ト) is identical with the situation of above-mentioned the 1st embodiment, therefore, and in this no longer repeat specification.In the compressor oil composition of the present embodiment, from the viewpoint of each excellent property such as extreme pressure property and the considerations such as viewpoint little to the disadvantageous effect of stability, preferred ortho-phosphoric acid ester and phosphorous acid ester, preferred especially ortho-phosphoric acid ester.

[0309] when using Phosphorus extreme pressure agent and/or thiophosphatephosphorothioate, their total content is benchmark with the total composition, by the phosphoric scaled value, is preferably 0.005～0.5 quality %, more preferably 0.02～0.2 quality %.If this content in above-mentioned scope, then can with high level and balance realize well oxidation stability and extreme pressure property the two.

[0310] in addition, the compressor oil composition of the present embodiment, in order further to improve its various performances, also can contain the known lubricating oil additive beyond above-mentioned, for example in rust-preventive agent, anticorrosive agent, pour point reducer, the defoamer etc. more than a kind or 2 kinds.

[0311], can enumerate for example aliphatics amine, metal organic sulfonate, organic phosphoric acid metal-salt, alkenyl succinic acid ester, polyol ester etc. as rust-preventive agent.

[0312], can enumerate for example benzotriazole compound, thiadiazole compound, glyoxaline compound etc. as anticorrosive agent.

[0313], can enumerate for example type siloxane such as dimethyl siloxane as defoamer.

[0314] these content of additive can be selected arbitrarily, with the total composition is each content of additive of benchmark, preferably, pour point reducer (pour point stiffening agent) is 0.01～5.0 quality %, rust-preventive agent and anticorrosive agent are respectively 0.01～3.0 quality %, and defoamer is 0.00001～0.5 quality %.

[0315] having the compressor oil composition of the present embodiment of above-mentioned formation, can realize the raising of thermal oxidation stability and the minimizing of sludge well with high level and balance, especially, is very useful as the compressor oil composition of high-temperature use.Illustrated, do not have particular restriction, when the oily temperature of fuel tank continues to be in more than 60 ℃ when recycling, brought into play effectively by the above-mentioned effect that the compressor oil composition of the present embodiment brings for use temperature about said high-temperature use herein.And, when this temperature reaches more than 80 ℃ and then reach more than 100 ℃, can give play to better effect.As this high-temperature use, can enumerate rotary gas compressor, generating with internal combustion turbine etc., the purposes of the compressor oil composition of the present embodiment is not limited to these.

[0316] (the 3rd embodiment; Hydraulic oil composition)

The hydraulic oil composition of the 3rd embodiment of the present invention contain the lubricant base of the invention described above and contain phosphorus and/or sulphur as the compound that constitutes element.

Illustrated that [0317] in the hydraulic oil composition of the present embodiment, the scheme of lubricant base of the present invention is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0318] in addition, in the hydraulic oil composition of the present embodiment, can use the lubricant base of the invention described above separately, and, also can also using more than a kind or 2 kinds with lubricant base of the present invention and other base oils.Illustrated that the concrete example of other base oils and lubricant base of the present invention shared ratio in mixed base oil is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0319] in addition, the hydraulic oil composition of the present embodiment comprises and contains phosphorus and/or sulphur as the compound that constitutes element.

[0320] illustrated, in the hydraulic oil composition of the present embodiment, the concrete example of phosphorus compound of the present invention and preferred version, identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0321] in the present embodiment, using phosphoric acid ester or phosphorous acid ester time-like, its content is benchmark with the total composition, is preferably below the 10 quality %, more preferably below the 5 quality %, more preferably below the 3 quality %.Even this content, also be can't see the further raising with corresponding wear resistance of content and rubbing characteristics above 5 quality %, and oxidation stability reduces, and is not preferred therefore.On the other hand, the content of phosphoric acid ester or phosphorous acid esters is benchmark with the total composition, is preferably more than the 0.01 quality %, more preferably more than the 0.05 quality %, more preferably more than the 0.1 quality %.The content of phosphoric acid ester and phosphorous acid esters is during less than 0.01 quality %, the inadequate tendency because the raising effect of wear resistance that its interpolation brings and rubbing characteristics becomes.

[0322] in addition, as the phosphorus-containing carboxylic acid compound, as long as contain carboxyl and phosphorus atom both sides in a part, its structure does not just have particular restriction.But, consider preferred phosphorylated carboxylic acid from the viewpoint of wear resistance and thermal oxidation stability.

[0323], can enumerate the compound of for example following general formula (13) expression as the phosphorylated carboxylic acid.

[0324] [changes 21]

[in the formula (13), R ³⁸And R ³⁹Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～30 separately; R ⁴⁰The alkylidene group of expression carbon number 1～20; R ⁴¹The alkyl of expression hydrogen atom or carbon number 1～30; X ¹, X ², X ³And X ⁴Can be identical or different, represent Sauerstoffatom or sulphur atom separately].

[0325] in the general formula (13), R ³⁸And R ³⁹The alkyl of representing hydrogen atom or carbon number 1～30 separately.As the alkyl of carbon number 1～30, can enumerate alkyl, thiazolinyl, cycloalkyl, bicyclic alkyl, tricyclic alkyl, alkyl-cycloalkyl, alkyl bicyclic alkyl, alkyl tricyclic alkyl, cycloalkylalkyl, bicyclic alkyl alkyl, tricyclic alkyl alkyl, aryl, alkylaryl, arylalkyl etc.In addition, R ³⁸With R ³⁹Also can form the divalent group of representing by following general formula (14) by bonding.Illustrated, 2 chemical bonds of this divalent group respectively with X ¹, X ²Bonding.

[0326] [changes 22]

[in the formula (14), R ⁴²And R ⁴³Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～4 separately; R ⁴²And R ⁴³Both sides preferably are methyl].

[0327] as R ³⁸And R ³⁹, wherein, be preferably alkyl, cycloalkyl, cycloalkylalkyl, tricyclic alkyl alkyl, aryl, alkylaryl, R ³⁸With R ³⁹The divalent group that bonding forms, more preferably alkyl by above-mentioned general formula (14) expression.

[0328] as R ³⁸, R ³⁹Alkyl, can be straight chain shape or chain any.In addition, the carbon number of this alkyl is preferably 1～18.As this alkyl, can enumerate methyl particularly, ethyl, propyl group, sec.-propyl, normal-butyl, isobutyl-, the tertiary butyl, amyl group, isopentyl, hexyl, heptyl, the 3-heptyl, octyl group, the 2-ethylhexyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, the 2-ethyl-butyl, the 1-aminomethyl phenyl, 1, the 3-dimethylbutyl, 1,1,3, the 3-tetramethyl butyl, 1-methyl hexyl, different heptyl, the 1-methylheptyl, 1,1,3-trimethylammonium hexyl and 1-methyl undecyl etc.Wherein, the alkyl of preferred carbon number 3～18, the more preferably alkyl of carbon number 3～8.

[0329] as R ³⁸, R ³⁹Cycloalkyl, for example can enumerate cyclopentyl, cyclohexyl, suberyl, ring octyl group or cyclo-dodecyl etc.Wherein, preferred carbon number 5 or 6 cycloalkyl (cyclopentyl and cyclohexyl), preferred especially cyclohexyl.

[0330] as R ³⁸, R ³⁹Cycloalkylalkyl, preferred methyl cycloalkyl, more preferably carbon number 6 or 7 methyl cycloalkyl, preferred especially cyclopentyl-methyl and cyclohexyl methyl.

[0331] as R ³⁸, R ³⁹The bicyclic alkyl alkyl, preferred bicyclic alkyl methyl, the more preferably bicyclic alkyl methyl of carbon number 9～11, preferred especially naphthalane base (デ カ リ ニ Le) methyl.

[0332] as R ³⁸, R ³⁹The tricyclic alkyl alkyl, preferred tricyclic alkyl methyl, the more preferably tricyclic alkyl methyl of carbon number 9～15 is especially preferably by the group of following formula (15) or (16) expression.

[changing 23]

[changing 24]

[0333] as R ³⁸, R ³⁹Aryl and alkylaryl, can enumerate phenyl, tolyl, xylyl, ethylphenyl, ethenylphenyl, aminomethyl phenyl, 3,5-dimethylphenyl, trimethylphenyl, ethylphenyl, isopropyl phenyl, tert-butyl-phenyl, di-tert-butyl-phenyl, 2,6-di-t-butyl-4-aminomethyl phenyl etc.Wherein, the aryl and the alkylaryl of preferred carbon number 6～15.

[0334] R ⁴⁰The alkylidene group of expression carbon number 1～20.The carbon number of this alkylidene group is preferably 1～10, and more preferably 2～6, more preferably 3～4.In addition, as this alkylidene group, preferably by the alkylidene group of following general formula (17) expression.

[changing 25]

[0335] in the general formula (17), R ⁴⁴, R ⁴⁵, R ⁴⁶And R ⁴⁷Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～4 separately; R ⁴⁴, R ⁴⁵, R ⁴⁶And R ⁴⁷The total carbon number be below 6.In addition, preferably, R ⁴⁴, R ⁴⁵, R ⁴⁶And R ⁴⁷Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～3 separately; R ⁴⁴, R ⁴⁵, R ⁴⁶And R ⁴⁷The total carbon number be below 5.More preferably, R ⁴⁴, R ⁴⁵, R ⁴⁶And R ⁴⁷Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1 or 2 separately; R ⁴⁴, R ⁴⁵, R ⁴⁶And R ⁴⁷The total carbon number be below 4.Particularly preferably be R ⁴⁴, R ⁴⁵, R ⁴⁶And R ⁴⁷Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～2 separately; R ⁴⁴, R ⁴⁵, R ⁴⁶And R ⁴⁷The total carbon number be below 3.Most preferably, R ⁴⁶Perhaps R ⁴⁷In any be methyl, remaining 3 group is a hydrogen atom.

[0336] in addition, the R in the general formula (13) ⁴¹The alkyl of expression hydrogen atom or carbon number 1～30.As this alkyl, can enumerate at R ³⁸And R ³⁹Explanation in illustrated alkyl.

[0337] in addition, the X in the general formula (13) ¹, X ², X ³And X ⁴Can be identical or different, represent Sauerstoffatom or sulphur atom separately.Consider preferred X from the viewpoint of extreme pressure property ¹, X ², X ³Perhaps X ⁴In be sulphur atom more than 1, more preferably be sulphur atom more than 2, further preferred 2 be that sulphur atom and remaining 2 are Sauerstoffatom.At this moment, though X ¹, X ², X ³Perhaps X ⁴In any be sulphur atom or for arbitrarily, but preferred X ¹And X ²Be Sauerstoffatom and X ³And X ⁴Be sulphur atom.

Each group in the general formula (13) has been described [0338], has considered, the preferred β-dithio phosphorylated propionic acid that uses by following general formula (18) expression from the viewpoint that extreme pressure property is better.

[0339] [changes 26]

[in the formula (18), R ³⁸, R ³⁹Respectively the expression with formula (13) in R ³⁸, R ³⁹Identical definition content, R ⁴⁴, R ⁴⁵, R ⁴⁶, R ⁴⁷Respectively the expression with formula (17) in R ⁴⁴, R ⁴⁵, R ⁴⁶, R ⁴⁷Identical definition content].

The occasion of the phosphorus-containing carboxylic acid compound of [0340] stating in the use, its content does not have particular restriction, is benchmark with the total composition, is preferably 0.001～5 quality %, more preferably 0.002～3 quality %, more preferably 0.003～1 quality %.When the content of phosphorus-containing carboxylic acid compound during less than above-mentioned lower value, the inadequate tendency because the raising effect of wear resistance that its interpolation brings and rubbing characteristics becomes.On the other hand, even surpass above-mentioned higher limit, also can not get improving effect, and then thermal oxidation stability or hydrolysis stability might reduce, and are not preferred therefore with the corresponding oilness of content.Illustrated, in the phosphorylated carboxylic acid of general formula (13) expression, about R ⁴¹Content for the compound of hydrogen atom (β-dithio phosphorylated propionic acid that comprises general formula (18) expression); be preferably 0.001～0.1 quality %; 0.002～0.08 quality % more preferably; 0.003～0.07 quality % more preferably; further be preferably 0.004～0.06 quality %, be preferably 0.005～0.05 quality % especially.When this content less than 0.001 the time, extreme pressure property improves effect might become insufficient, on the other hand, if surpass 0.1 quality %, then thermal oxidation stability might reduce.

[0341] in addition, thiophosphatephosphorothioate is an illustrated compound by general formula (4) expression in the explanation of above-mentioned the 1st embodiment, and its concrete example is identical with the situation of above-mentioned the 1st embodiment with preference, therefore, and in this no longer repeat specification.

[0342] in the occasion of using thiophosphatephosphorothioate, its content does not have particular restriction, is benchmark with the total composition, is preferably 0.001～10 quality %, more preferably 0.005～5 quality %, more preferably 0.01～3 quality %.Even the content of thiophosphatephosphorothioate, also be can't see the further raising with corresponding wear resistance of content and rubbing characteristics above above-mentioned higher limit, and the oxidation stability reduction, be not preferred therefore.On the other hand, the content of thiophosphatephosphorothioate is benchmark with the total composition, is preferably more than the 0.01 quality %, more preferably more than the 0.05 quality %, more preferably more than the 0.1 quality %.When the content of thiophosphatephosphorothioate during less than 0.01 quality %, the inadequate tendency because the raising effect of wear resistance that its interpolation brings and rubbing characteristics becomes.

[0343] in addition; as containing sulphur, can enumerate sulfuration grease, sulfide aliphatic acid, sulfuration ester, olefine sulfide, dialkyl (many) sulfide, thiadiazole compound, alkylthio carbamoyl compounds, Thiourethane compound, sulfo-terpene compound, dialkyl group thio-2 acid ester cpds, sulfurized mineral oil, zinc dithiocarbamate compound and molybdenum dithiocarbamate etc. particularly as the compound (hereinafter referred to as " sulphur compound ") that constitutes element.These sulphur compounds can use a kind separately, also can use with the mixture more than 2 kinds.Illustrated that phosphorodithioic acid zn cpds and phosphorodithioic acid molybdenum compound are to contain the p and s both sides as the compound that constitutes element, in the present embodiment, phosphorodithioic acid zn cpds and phosphorodithioic acid molybdenum compound are included in " sulphur compound ".

[0344] the sulfuration grease is the product by sulphur or sulfocompound and grease (lard, whale oil, vegetables oil, fish oil etc.) reaction is obtained, and its sulphur content does not have particular restriction, generally is advisable with 5～30 quality %.As its concrete example, can enumerate sulfuration lard, sulfuration rapeseed oil, sulfurized castor oil, sulfurized soybean oil, sulfuration Rice pollard oil and their mixture etc.

[0345] as the example of sulfide aliphatic acid, with sulfuration oleic acid etc. as the example that vulcanizes ester, can enumerate the unsaturated fatty acid ester that unsaturated fatty acids (comprise from oleic acid, linolic acid or above-mentioned animal-plant oil extractive fatty acid etc.) and various alcohol reacted and obtain and their mixture etc. by the product that adopts arbitrary method to vulcanize to obtain etc., can enumerate particularly and for example vulcanize Witconol 2301 or sulfuration Rice pollard oil lipid acid monooctyl ester and their mixture etc.

[0346], can enumerate the compound of for example representing by following general formula (19) as olefine sulfide.

[0347] alkene or the vulcanizing agents such as its two～tetramer and sulphur, sulfur subchloride of this compound by making carbon number 2～15 react and obtain, as this alkene, and preferred propylene, iso-butylene, diisobutylene etc.

R ⁴⁸-S _a-R ⁴⁹ (19)

[in the formula, R ⁴⁸The thiazolinyl of expression carbon number 2～15; R ⁴⁹The alkyl or the thiazolinyl of expression carbon number 2～15; A represents 1～8 integer].

[0348] in addition, dialkyl (many) sulfide is the compound by following general formula (20) expression.Herein, at R ⁵⁰And R ⁵¹Be the occasion of alkyl, be called as alkyl monosulfide sometimes.

R ⁵⁰-S _b-R ⁵¹ (20)

[in the formula, R ⁵⁰And R ⁵¹Can be identical or different, represent straight chain shape alkyl, chain or cyclic alkyl, the aryl of carbon number 6～20, the alkylaryl of carbon number 7～20 or the arylalkyl of carbon number 7～20 of carbon number 1～20 respectively; B represents 1～8 integer].

[0349] as the R in the above-mentioned general formula (20) ⁵⁰And R ⁵¹, can enumerate n-propyl particularly, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, the tertiary butyl, the straight or branched amyl group, the straight or branched hexyl, the straight or branched heptyl, the straight or branched octyl group, the straight or branched nonyl, the straight or branched decyl, the straight or branched undecyl, the straight or branched dodecyl, the straight or branched tridecyl, the straight or branched tetradecyl, the straight or branched pentadecyl, the straight or branched hexadecyl, the straight or branched heptadecyl, the straight or branched octadecyl, the straight or branched nonadecyl, the alkyl of straight or brancheds such as straight or branched eicosyl; Aryl such as phenyl, naphthyl; Tolyl, ethylphenyl, straight or branched propyl group phenyl, the straight or branched butyl phenyl, straight or branched amyl group phenyl, straight or branched hexyl phenyl, straight or branched heptyl phenyl, the straight or branched octyl phenyl, straight or branched nonyl phenyl, the straight or branched decyl phenyl, straight or branched undecyl phenyl, the straight or branched dodecylphenyl, xylyl, ethyl methyl phenyl, the diethyl phenyl, two (straight or branched) propyl group phenyl, two (straight or branched) butyl phenyl, the methyl naphthyl, the ethyl naphthyl, straight or branched propyl group naphthyl, straight or branched butyl naphthyl, the dimethyl naphthyl, the ethyl-methyl naphthyl, the diethyl naphthyl, two (straight or branched) propyl group naphthyl, alkylaryls such as two (straight or branched) butyl naphthyl; Arylalkyls such as benzyl, phenylethyl, phenyl propyl; Deng.Wherein, as the R in the general formula (20) ⁵⁰And R ⁵¹Be preferably by propylene, the alkyl of 1-butylene or iso-butylene deutero-carbon number 3～18, the perhaps aryl of carbon number 6～8, alkylaryl or arylalkyl, as these groups, can enumerate for example sec.-propyl, prop up the chain hexyl by propylene 2 polymers deutero-, prop up the chain nonyl by propylene 3 polymers deutero-, prop up the chain dodecyl by propylene 4 polymers deutero-, prop up the chain pentadecyl by propylene 5 polymers deutero-, prop up the chain octadecyl by propylene 6 polymers deutero-, sec-butyl, the tertiary butyl, prop up the chain octyl group by 1-butylene 2 polymers deutero-, prop up the chain octyl group by iso-butylene 2 polymers deutero-, prop up the chain dodecyl by 1-butylene 3 polymers deutero-, prop up the chain dodecyl by iso-butylene 3 polymers deutero-, prop up the chain hexadecyl by 1-butylene 4 polymers deutero-, prop up alkyl such as chain hexadecyl by iso-butylene 4 polymers deutero-; Alkylaryls such as phenyl, tolyl, ethylphenyl, xylyl; Arylalkyl such as benzyl, phenylethyl.Each self-contained whole constitutional isomer in these groups is described.

[0350] and then, as the R in the above-mentioned general formula (20) ⁵⁰And R ⁵¹, consider from the viewpoint that wear resistance and rubbing characteristics improve, respectively, more preferably by the branched-chain alkyl of the carbon number 3～18 of ethene or propylene derived, especially preferably by the branched-chain alkyl of the carbon number 6～15 of ethene or propylene derived.

[0351] as dialkyl (many) sulfide, preferably can enumerate for example dibenzyl polysulfide, various dinonyl polysulfide, various pairs of dodecyl polysulfides, various dibutyl polysulfide, various dioctyl polysulfide, phenylbenzene polysulfide, dicyclohexyl polysulfide and their mixtures etc. by general formula (20) expression.

[0352], for example can enumerate by 1,3 of following general formula (21) expression 4-thiadiazoles, by 1,2 of following general formula (22) expression, 4-thiadiazole compound and by 1,4 of following general formula (23) expression, 5-thiadiazole compound as thiadiazole compound.

[changing 27]

[changing 28]

[changing 29]

[in the formula, R ⁵², R ⁵³, R ⁵⁴, R ⁵⁵, R ⁵⁸And R ⁵⁷Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～20 separately; C, d, e, f, g and h can be identical or different, represent 0～8 integer separately]

[0353] as the concrete example of this thiadiazole compound, preferably can enumerate 2, two (the n-hexyl dithio)-1,3 of 5-, the 4-thiadiazoles, 2, two (the n-octyl dithio)-1,3 of 5-, 4-thiadiazoles, 2, two (the n-nonyl dithio)-1,3 of 5-, the 4-thiadiazoles, 2,5-two (1,1,3,3-tetramethyl butyl dithio)-1,3, the 4-thiadiazoles, 3, two (the n-hexyl dithio)-1,2 of 5-, 4-thiadiazoles, 3, two (the n-octyl dithio)-1,2 of 5-, the 4-thiadiazoles, 3, two (the n-nonyl dithio)-1,2 of 5-, the 4-thiadiazoles, 3,5-two (1,1,3,3-tetramethyl butyl dithio)-1,2, the 4-thiadiazoles, 4, two (the n-hexyl dithio)-1,2 of 5-, the 3-thiadiazoles, 4, two (the n-octyl dithio)-1,2 of 5-, the 3-thiadiazoles, 4, two (the n-nonyl dithio)-1,2 of 5-, the 3-thiadiazoles, 4,5-two (1,1,3,3-tetramethyl butyl dithio)-1,2,3-thiadiazoles and their mixture etc.

[0354], can enumerate the compound of for example representing by following general formula (24) as the alkylthio carbamoyl compounds.

[0355] [changes 30]

[in the formula, R ⁵⁸～R ⁵⁹Can be identical or different, represent the alkyl of carbon number 1～20 separately; K represents 1～8 integer].

[0356], preferably can enumerate two (dimethyl thiocarbamoyl) monosulphides, two (dibutyl thiocarbamoyl) monosulphide, two (dimethyl thiocarbamoyl) disulphide, two (dibutyl thiocarbamoyl) disulphide, two (diamyl thiocarbamoyl) disulphide, two (dioctyl thiocarbamoyl) disulphide and their mixture etc. as the concrete example of this alkylthio carbamoyl compounds.

[0357], can enumerate the compound of for example representing by following general formula (25) as the alkylthio carbamate compounds.

[0358] [changes 31]

[in the formula, R ⁶²～R ⁶⁵Can be identical or different, represent the alkyl of carbon number 1～20 separately; R ⁶⁶The alkyl of expression carbon number 1～10].

[0359], preferably can enumerate methylene-bis (dibutyl dithiocaarbamate ester), methylene-bis [two (2-ethylhexyl) dithiocarbamate] etc. as the concrete example of this alkylthio carbamate compounds.

[0360] and then, as the sulfo-terpene compound, can enumerate for example reactant of thiophosphoric anhydride and firpene; As thio-2 acid dialkyl compound, can enumerate for example thiodipropionate dilauryl, thio-2 acid distearyl ester and their mixture etc.

[0361] sulfurized mineral oil is meant by making free sulfur be dissolved in the product that mineral oil forms.Herein, there is not particular restriction as the mineral oil that uses in the sulfurized mineral oil of the present invention, can enumerate particularly by with those lubricating oil distillates that obtains through air distillation and underpressure distillation by crude oil, adopt paraffinic mineral oil, the cycloalkane mineral wet goods that forms made with extra care in the suitable combination of refinement treatment such as solvent deasphalting, solvent extraction, hydrocracking, solvent dewaxing, catalytic dewaxing, hydrofining, sulfuric acid scrubbing, clay treatment.In addition,, can use the free sulfur of any forms such as bulk, Powdered, melt liquid shape as free sulfur, if but use free sulfur Powdered or the melt liquid shape, then can efficiently it be dissolved in the base oil, be preferred therefore.Illustrated, the free sulfur of melt liquid shape is owing to be to mix mutually between the liquid, therefore, have the advantage that in the very short time, to dissolve operation, but, therefore need special devices such as heating installation owing to must more than the fusing point of free sulfur, operate, in addition, owing to be to operate in high temperature atmosphere gas, thereby follow danger etc., therefore operation may not be easy.In contrast, the cheap and processing ease of pulverous free sulfur, and also it is very short, therefore preferred especially to dissolve the needed time.In addition, the sulphur content in the sulfurized mineral oil of the present invention does not have particular restriction, generally, is benchmark with the sulfurized mineral oil total amount, is preferably 0.05～1.0 quality %, more preferably 0.1～0.5 quality %.

[0362] phosphorodithioic acid zn cpds, zinc dithiocarbamate compound, phosphorodithioic acid molybdenum compound and molybdenum dithiocarbamate compound are meant the compound by following general formula (26)～(29) expression respectively.

[changing 32]

[changing 33]

[changing 34]

[changing 35]

[in the formula, R ⁶⁷, R ⁶⁸, R ⁶⁹, R ⁷⁰, R ⁷¹, R ⁷², R ⁷³, R ⁷⁴, R ⁷⁵, R ⁷⁶, R ⁷⁷, R ⁷⁸, R ⁷⁹, R ⁸⁰, R ⁸¹And R ⁸²Can be identical or different, represent the alkyl of carbon number more than 1 separately; X ⁵And X ⁶Represent Sauerstoffatom or sulphur atom separately].

[0363] herein, as R ⁶⁷～R ⁸²The concrete example of the alkyl of expression can be enumerated alkyl such as methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl; Cycloalkyl such as cyclopentyl, cyclohexyl, suberyl; Methylcyclopentyl, the ethyl cyclopentyl, dimethylcyclopentyl, the propyl group cyclopentyl, the methylethyl cyclopentyl, the trimethylammonium cyclopentyl, the butyl cyclopentyl, the methyl-propyl cyclopentyl, the diethyl cyclopentyl, the dimethyl ethyl cyclopentyl, methylcyclohexyl, the ethyl cyclohexyl, Dimethylcyclohexyl, the propyl group cyclohexyl, the methylethyl cyclohexyl, trimethylcyclohexyl, the butyl cyclohexyl, the methyl-propyl cyclohexyl, the diethyl cyclohexyl, the dimethyl ethyl cyclohexyl, the methyl suberyl, the ethyl suberyl, the dimethyl suberyl, the propyl group suberyl, the methylethyl suberyl, the trimethylammonium suberyl, the butyl suberyl, the methyl-propyl suberyl, the diethyl suberyl, alkyl-cycloalkyls such as dimethyl ethyl suberyl; Aryl such as phenyl, naphthyl; Alkylaryls such as tolyl, xylyl, ethylphenyl, propyl group phenyl, methylethyl phenyl, trimethylphenyl, butyl phenyl, methyl-propyl phenyl, diethyl phenyl, dimethyl ethyl phenyl, amyl group phenyl, hexyl phenyl, heptyl phenyl, octyl phenyl, nonyl phenyl, decyl phenyl, undecyl phenyl, dodecylphenyl, tridecyl phenyl, tetradecyl phenyl, pentadecyl phenyl, hexadecyl phenyl, heptadecyl phenyl, octadecyl phenyl; Arylalkyls such as benzyl, styroyl, phenyl propyl, phenyl butyl etc.Each self-contained whole branched chain isomer of these groups or replacement isomer are described.

[0364] when using above-mentioned sulphur compound, its content is benchmark with the total composition, is preferably more than the 0.01 quality %, more preferably more than the 0.05 quality %, more preferably more than the 0.1 quality %.If the content of sulphur compound is less than above-mentioned lower value, inadequate tendency then because the raising effect of wear resistance that its interpolation brings and rubbing characteristics becomes.In addition, even cooperate more than the value at this, also can not get and the addition corresponding effect, consider that from these viewpoints the content of sulphur compound is benchmark with the total composition, be preferably below the 10 quality %, more preferably below the 5 quality %, more preferably below the 3 quality %, be preferably especially below the 1 quality %.

[0365] hydraulic oil composition of the present embodiment can contain lubricant base of the present invention and contain phosphorus and/or sulphur as the compound that constitutes element, in order further to improve its characteristic, also can further contain following additive.

[0366] hydraulic oil composition of the present embodiment is considered from the viewpoint of sludge inhibition, preferably further contains the decentralized viscosity index improver.

[0367] as the decentralized viscosity index improver, can use the compound arbitrarily that uses as the decentralized viscosity index improver of lubricating oil, for example, preferably contain nitrogen containing monomer with ethylenic unsaturated bond multipolymer as copolymer composition.More specifically, preferably illustrated in the explanation of above-mentioned the 2nd embodiment, from general formula (12-1), (12-2) or the monomer more than a kind or 2 kinds (monomer (M-1)) (12-3) selected the compound of expression and the multipolymer that forms from general formula (12-4) or the monomer more than a kind or 2 kinds (monomer (M-2)) (12-5) selected the compound of expression.

[0368] in the present embodiment, when making monomer (M-1) with monomer (M-2) copolymerization, monomer (M-1) is arbitrarily with the polymerization of monomer (M-2) than (mol ratio), preferably in the scope of 80:20～95:5.In addition, the reaction method of copolymerization also is arbitrarily, usually, in the presence of polymerization starters such as benzoyl peroxide, makes monomer (M-1) and monomer (M-2) carry out free radical solution polymerization, thus can be easily and positively obtain the purpose multipolymer.The number-average molecular weight of the multipolymer that obtains also is arbitrarily, is preferably 1,000～1,500,000, more preferably 10,000～200,000.

[0369] in the hydraulic oil composition of the present embodiment, the content of decentralized viscosity index improver is benchmark with the total composition, be preferably below the 10 quality %, and more preferably below the 5 quality %, 2 quality % more preferably.Even the content of decentralized viscosity index improver, also be can't see the further raising with the corresponding sludge inhibition of content above 10 quality %, and, can cause that viscosity reduces owing to shearing, be not preferred therefore.In addition, the content of decentralized viscosity index improver is benchmark with the total composition, is preferably more than the 0.01 quality %, and 0.05 quality % more preferably is more preferably more than the 0.1 quality %.When the content of decentralized viscosity index improver during less than 0.01 quality %, the inadequate tendency because the raising effect of the sludge inhibition that its interpolation brings becomes.

[0370] in addition, the hydraulic oil composition of the present embodiment is considered from the viewpoint that can further improve rubbing characteristics, preferably contains at least a kind that selects from the compound of following general formula (30)～(32) expression.

R ⁸³-CO-NR ⁸⁴-(CH ₂) _p-COOX ⁷ (30)

[in the formula, R ⁸³The alkyl of expression carbon number 6～30 or the thiazolinyl of carbon number 6～30; R ⁸⁴The alkyl of expression carbon number 1～4; X ⁷Expression hydrogen atom, the alkyl of carbon number 1～30 or the thiazolinyl of carbon number 1～30; P represents 1～4 integer].

[R ⁸⁵-CO-NR ⁸⁶-(CH ₂) _q-COO] _rY ⁵ (31)

[in the formula, R ⁸⁵The alkyl of expression carbon number 6～30 or the thiazolinyl of carbon number 6～30; R ⁸⁶The alkyl of expression carbon number 1～4; Y ⁵Expression alkali metal atom or alkaline-earth metal atom; N represents 1～4 integer; Work as Y ⁵During for alkali metal atom, r represents 1; Work as Y ⁵During for alkaline-earth metal, r represents 2].

[R ⁸⁷-CO-NR ⁸⁸-(CH ₂) _s-COO] _t-Z-(OH) _u (32)

[in the formula, R ⁸⁷The alkyl of expression carbon number 6～30 or the thiazolinyl of carbon number 6～30; R ⁸⁸The alkyl of expression carbon number 1～4; Z represents to remove hydroxyl from the polyvalent alcohol more than 2 yuan and the residue that obtains; S represents 1～4 integer; T represents the integer more than 1; U represents the integer more than 0].

[0371] in general formula (30)～(32), R ⁸³, R ⁸⁵, R ⁸⁷Represent the alkyl of carbon number 6～30 or the thiazolinyl of carbon number 6～30 separately.By R ⁸³, R ⁸⁵, R ⁸⁷The alkyl of expression or the carbon number of thiazolinyl are considered from the viewpoints such as solvability lubricant base, are more than 6, are preferably more than 7, more preferably more than 8.In addition, consider from viewpoints such as storage stabilities, by R ⁸³, R ⁸⁵, R ⁸⁷The carbon number of the alkyl or alkenyl of expression is below 30, is preferably below 24, more preferably below 20.As this alkyl and thiazolinyl, for example can enumerate particularly, alkyl such as hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl (these alkyl can be the straight chain shapes, also can be chains); (these thiazolinyls can be the straight chain shapes to thiazolinyls such as hexenyl, heptenyl, octenyl, nonene base, decene base, undecenyl, dodecenyl succinic, tridecylene base, tetradecene base, 15 carbene bases, cetene base, heptadecene base, vaccenic acid base, 19 carbene bases, eicosylene base, it also can be a chain, and the position of two keys also is arbitrarily) etc.

[0372] in general formula (30)～(32), R ⁸⁴, R ⁸⁶, R ⁸⁸The alkyl of representing carbon number 1～4 separately.By R ⁸⁴, R ⁸⁶, R ⁸⁸The carbon number of alkyl of expression is considered from the viewpoint of storage stability etc., is below 4, is preferably below 3, more preferably below 2.

[0373] in addition, in general formula (30)～(32), p, q, s represent 1～4 integer separately.Consider that from viewpoints such as storage stabilities p, q, s are necessary for the integer below 4, are preferably below 3, more preferably below 2.

[0374] in addition, in the general formula (30), X ⁷Expression hydrogen atom, the alkyl of carbon number 1～30 or the thiazolinyl of carbon number 1～30.By X ⁷The alkyl of expression or the carbon number of thiazolinyl are considered from the viewpoint of storage stability etc., are below 30, are preferably below 20, more preferably below 10.As this alkyl or alkenyl, for example can enumerate alkyl such as methyl, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl (these alkyl can be the straight chain shapes, also can be chains) particularly; Thiazolinyls such as vinyl, propenyl, butenyl, pentenyl, hexenyl, heptenyl, octenyl, nonene base, decene base (these thiazolinyls can be the straight chain shapes, also can be a chain, and the position of two keys also are arbitrarily) etc.Consider X from the viewpoint of the good grade of sludge inhibition ⁵Be preferably alkyl.In addition, consider from the viewpoint that improves rubbing characteristics, improves the persistence etc. of rubbing characteristics effect, as X ⁷, be preferably the alkyl of hydrogen atom, carbon number 1～20 or the thiazolinyl of carbon number 1～20, more preferably the alkyl of hydrogen atom or carbon number 1～20, the more preferably alkyl of hydrogen atom or carbon number 1～10.

[0375] in the general formula (31), Y ⁵Expression alkali metal atom or alkaline-earth metal atom for example can be enumerated sodium, potassium, magnesium, calcium etc. particularly.Wherein, consider preferred alkaline-earth metal from the viewpoint of the persistence that improves the rubbing characteristics effect.In the general formula (32), work as Y ⁵During for basic metal, r represents 1; Work as Y ⁵During for alkaline-earth metal, r represents 2.

[0376] in the general formula (32), Z represents to remove hydroxyl from the polyvalent alcohol more than 2 yuan and the residue that obtains.As this polyvalent alcohol, for example can enumerate particularly, ethylene glycol, propylene glycol, 1,4-butyleneglycol, 1,2-butyleneglycol, neopentyl glycol, 1,6-hexylene glycol, 1,2-ethohexadiol, 1,8-ethohexadiol, isoamyl glycol, 3-methyl isophthalic acid, 2 yuan of alcohol such as 5-pentanediol, Sorbitol Powder, pyrocatechol, Resorcinol, Resorcinol, dihydroxyphenyl propane, Bisphenol F, Hydrogenated Bisphenol A, A Hydrogenated Bisphenol A F, dimer diol; Glycerine, 2-(methylol)-1, ammediol, 1,2,3-trihydroxybutane, 1,2,3-penta triol, 2-methyl isophthalic acid, 2,3-glycerol, 2-methyl-2,3,4-trihydroxybutane, 2-ethyl-1,2,3-trihydroxybutane, 2,3,4-penta triol, 2,3,4-hexanetriol, 4-propyl group-3,4,5-triol in heptan, 2,4-dimethyl-2,3,4-penta triol, 1,2,4-trihydroxybutane, 1,2,3 yuan of alcohol such as 4-penta triol, trimethylolethane, TriMethylolPropane(TMP); Tetramethylolmethane, tetrahydroxybutane, 1,2,3,4-penta tetrol, 2,3,4, the own tetrol of 5-, 1,2,4,5-penta tetrol, 1,3,4,4 yuan of alcohol such as the own tetrol of 5-, Glycerol dimer, sorbitan; 5 yuan of alcohol such as adonitol, arabitol, Xylitol, triglycerin; 6 yuan of alcohol such as dipentaerythritol, Sorbitol Powder, mannitol, iditol, inositol, galactitol, talose, allose; Polyglycerine or their dehydration condensation etc.

[0377] in the general formula (32), t is the integer more than 1, and u is the integer more than 0, and t+u is identical with the valence mumber of Z.In a word, in the hydroxyl groups that residue Z is provided, both can all be substituted, also can only some be substituted.

[0378] in the compound of from general formula (30)～(32), selecting, considers preferably from the compound that general formula (30) and (31) are represented, select at least a kind from the viewpoint of the persistence that improves the rubbing characteristics effect etc.As the preference of the compound of general formula (30) expression, can enumerate R ⁸³Thiazolinyl, R for carbon number 17 ⁸⁴Be methyl, X ⁷It for hydrogen atom, p 1 N-oleoylsarcosine.

Illustrated that [0379] compound of general formula (30)～(32) expression can use a kind separately, also can will be used in combination more than 2 kinds.

[0380] content of the compound of general formula (30)～(32) expression is benchmark with the total composition, is preferably below the 5 quality %, more preferably below the 2 quality %, more preferably below the 1 quality %.Even the content of the compound of general formula (30)～(32) expression, also be can't see the further raising with the corresponding rubbing characteristics of content above 5 quality %, storage stability has the tendency of reduction.In addition, the content of the compound of general formula (30)～(32) expression is benchmark with the total composition, is preferably more than the 0.001 quality %, more preferably more than the 0.003 quality %, more preferably more than the 0.005 quality %.When the content of the compound of general formula (30)～(32) expressions during less than 0.001 quality %, the inadequate tendency because the raising effect of the rubbing characteristics that its interpolation brings becomes.

[0381] in addition, the hydraulic oil composition of the present embodiment is considered from the viewpoint of further raising rubbing characteristics, preferably contains the compound by following general formula (33) expression.

R ⁸⁹-CH ₂COOH (33)

[in the formula, R ⁸⁹The thiazolinyl of alkyl, the carbon number 7～29 of expression carbon number 7～29 or by following general formula (34):

R ⁹⁰-C ₆H ₄O- (34)

(in the formula, R ⁹⁰The alkyl or the hydrogen atom of expression carbon number 1～20)

The group of expression].

[0382] R in general formula (33) ⁸⁹During for alkyl, the carbon number of this alkyl is considered from the viewpoint of the solvability lubricant base etc., is more than 7, is preferably more than 9.In addition, consider that from the viewpoint of storage stability etc. the carbon number of this alkyl is below 29, is preferably below 22, more preferably below 19.As this alkyl, for example can enumerate particularly, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl etc. (these alkyl can be the straight chain shapes, also can be chains).

[0383] R in general formula (34) ⁸⁹During for thiazolinyl, the carbon number of this thiazolinyl is considered from the viewpoint of the solvability lubricant base etc., is more than 7, is preferably more than 9.In addition, consider that from the viewpoint of storage stability etc. the carbon number of this thiazolinyl is below 29, is preferably below 22, more preferably below 19.As this thiazolinyl, for example can enumerate particularly, heptenyl, octenyl, nonene base, decene base, undecenyl, dodecenyl succinic, tridecylene base, tetradecene base, 15 carbene bases, cetene base, heptadecene base, vaccenic acid base, 19 carbene bases etc. (these thiazolinyls can be the straight chain shapes, also can be chains).

[0384] R in general formula (33) ⁸⁹During for the group of general formula (34) expression, the R in the general formula (34) ⁹⁰Alkyl or hydrogen atom for carbon number 1～20.By R ⁹⁰The carbon number of alkyl of expression is considered from the viewpoint of storage stability etc., is below 20, is preferably below 19, more preferably below 15.In addition, the carbon number of this alkyl is considered from the viewpoint of the solvability lubricant base etc., is more than 3, is preferably more than 5.In addition, work as R ⁹⁰During for alkyl, this alkyl the position of substitution on phenyl ring can be arbitrarily, but considers from the better viewpoint of the raising effect of rubbing characteristics, preferably with respect in the general formula (33)-CH ₂COOH is contraposition or a position, more preferably contraposition.

[0385] in general formula (33), R ⁸⁹Can be carbon number 7～29 alkyl, carbon number 7～29 thiazolinyl or by in the group of general formula (34) expression any, but consider from the viewpoint of the better grade of rubbing characteristics, be preferably the group of general formula (34) expression.

[0386] content by the compound of general formula (33) expression is arbitrarily, if a large amount of the cooperation, then the sludge inhibition might reduce, therefore, be benchmark with the total composition, be preferably below the 5 quality %, more preferably below the 1 quality %, more preferably below the 0.5 quality %.On the other hand, consider the content of the compound of general formula (33) expression from the viewpoint of the raising effect that can give full play to rubbing characteristics etc., with the total composition is benchmark, be preferably more than the 0.001 quality %, more preferably more than the 0.003 quality %, more preferably more than the 0.005 quality %.

[0387] in addition, the hydraulic oil composition of the present embodiment is considered from the viewpoint of sludge inhibition, preferably contains epoxy compounds.The concrete example of epoxy compounds and preference, identical with the situation of epoxy compounds in the 1st embodiment, therefore, in this no longer repeat specification.

[0388] when the hydraulic oil composition of the present embodiment contains epoxy compounds, its content does not have particular restriction, is benchmark with the total composition, is preferably 0.1～5.0 quality %, more preferably 0.2～2.0 quality %.

[0389] in addition, the hydraulic oil composition of the present embodiment is considered from the viewpoint that can further improve oxidation stability, can contain phenol antioxidant, amine antioxidants or contain the two.The concrete example of phenol antioxidant and amine antioxidants and preference, identical with the situation of phenol antioxidant in above-mentioned the 2nd embodiment and amine antioxidants, therefore, in this no longer repeat specification.

[0390] content of the phenol antioxidant in the hydraulic oil composition of the present embodiment is benchmark with the total composition, is preferably below the 3 quality %, and more preferably below the 2 quality %, 1 quality % more preferably.Even the content of phenol antioxidant surpasses 3 quality %, also can't see the further raising effect with corresponding thermal oxidation stability of content and sludge inhibition, and, the inadequate tendency that becomes of the solvability in lubricant base.In addition, the content of phenol antioxidant is benchmark with the total composition, is preferably more than the 0.01 quality %, more preferably more than the 0.1 quality %, more preferably more than the 0.2 quality %.When the content of phenol antioxidant during less than 0.01 quality %, the inadequate tendency because the raising effect of thermal oxidation stability that its interpolation brings and sludge inhibition becomes.

[0391] in addition, the content of the amine antioxidants in the hydraulic oil composition of the present embodiment is benchmark with the total composition, is preferably below the 3 quality %, more preferably below the 2 quality %, more preferably below the 1 quality %.Even the content of amine antioxidants surpasses 3 quality %, also can't see the further raising effect with corresponding thermal oxidation stability of content and sludge inhibition, and, the inadequate tendency that becomes of the solvability in lubricant base.On the other hand, the lower value of the content of amine antioxidants is a benchmark with the total composition, is preferably more than the 0.01 quality %, more preferably more than the 0.1 quality %, more preferably more than the 0.2 quality %.When the content of amine antioxidants during less than 0.01 quality %, the inadequate tendency because the raising effect of thermal oxidation stability that its interpolation brings and sludge inhibition becomes.

[0392] in addition, the hydraulic oil composition of the present embodiment is considered from the viewpoint that improves rubbing characteristics, preferably contains oiliness improver.

[0393], can enumerate ester oiliness improver, pure oiliness improver, carboxylic acid oiliness improver, ether oiliness improver, amine oiliness improver, acid amides oiliness improver etc. as oiliness improver.

[0394] the ester oiliness improver can obtain by making alcohol and carboxylic acid reaction.As alcohol, can be monohydroxy-alcohol, also can be polyvalent alcohol.In addition, as carboxylic acid, can be monoprotic acid, also can be polyprotonic acid.

[0395] as the monohydroxy-alcohol that constitutes the ester oiliness improver, to use carbon number usually be 1～24, be preferably 1～12, more preferably 1～8 monohydroxy-alcohol, as this alcohol, it can be straight chain, also can be side chain, and can be saturated, also can be undersaturated.Alcohol as carbon number 1～24, for example can enumerate methyl alcohol particularly, ethanol, the propyl alcohol of straight or branched, the butanols of straight or branched, the amylalcohol of straight or branched, the hexanol of straight or branched, the enanthol of straight or branched, the octanol of straight or branched, the nonyl alcohol of straight or branched, the decyl alcohol of straight or branched, the hendecanol of straight or branched, the dodecanol of straight or branched, the tridecyl alcohol of straight or branched, the tetradecanol of straight or branched, the pentadecylic alcohol of straight or branched, the cetyl alcohol of straight or branched, the heptadecanol of straight or branched, the Stearyl alcohol of straight or branched, the nonadecanol of straight or branched, the eicosanol of straight or branched, the heneicosane alcohol of straight or branched, the tricosanol of straight or branched, the Tetracosyl alcohol of straight or branched and their mixture etc.

[0396] in addition, as the polyvalent alcohol that constitutes the ester oiliness improver, use 2～10 yuan, preferred 2～6 yuan polyvalent alcohol usually.Polyvalent alcohol as 2～10 for example can be enumerated particularly, ethylene glycol, glycol ether, polyoxyethylene glycol (3～15 polymers of ethylene glycol), propylene glycol, dipropylene glycol, polypropylene glycol (3～15 polymers of propylene glycol), 1, ammediol, 1,2-propylene glycol, 1,3 butylene glycol, 1,4-butyleneglycol, 2-methyl isophthalic acid, 2-propylene glycol, 2-methyl isophthalic acid, ammediol, 1,2-pentanediol, 1,3-pentanediol, 1,4-pentanediol, 1, dibasic alcohol such as 5-pentanediol, neopentyl glycol; Glycerine, Polyglycerine (2～8 polymers of glycerine, for example Glycerol dimer, triglycerin, four glycerine etc.), trimethylol-alkanes (trimethylolethane, TriMethylolPropane(TMP), tri hydroxy methyl butane etc.) and their 2～8 polymers, tetramethylolmethane and their 2～4 polymers, 1,2,4-trihydroxybutane, 1,3,5-penta triol, 1,2,6-hexanetriol, 1,2,3, polyvalent alcohols such as 4-butantetraol, Sorbitol Powder, sorbitan, Sorbitol Powder glycerol condensate, adonitol, arabitol, Xylitol, mannitol; Carbohydrates such as wood sugar, pectinose, ribose, rhamnosyl, glucose, fructose, semi-lactosi, seminose, sorbose, cellobiose, maltose, isomaltose, trehalose, sucrose and their mixture etc.

[0397] in these polyvalent alcohol, preferred ethylene glycol, glycol ether, polyoxyethylene glycol (3～10 polymers of ethylene glycol), propylene glycol, dipropylene glycol, polypropylene glycol (3～10 polymers of propylene glycol), 1, ammediol, the 2-methyl isophthalic acid, the 2-propylene glycol, the 2-methyl isophthalic acid, ammediol, dimethyltrimethylene glycol, glycerine, Glycerol dimer, triglycerin, trimethylol-alkanes (trimethylolethane, TriMethylolPropane(TMP), tri hydroxy methyl butane etc.) and their 2～4 polymers, tetramethylolmethane, dipentaerythritol, 1,2, the 4-trihydroxybutane, 1,3,5-penta triol, 1,2, the 6-hexanetriol, 1,2,3, the 4-butantetraol, Sorbitol Powder, sorbitan, the Sorbitol Powder glycerol condensate, adonitol, arabitol, Xylitol, polyvalent alcohol that mannitol etc. are 2～6 yuan and their mixture etc.More preferably ethylene glycol, propylene glycol, neopentyl glycol, glycerine, trimethylolethane, TriMethylolPropane(TMP), tetramethylolmethane, sorbitan and their mixture etc.

[0398] alcohol of formation ester oiliness improver as mentioned above, can be monohydroxy-alcohol, also can be polyvalent alcohol, from the better considerations such as viewpoint of rubbing characteristics, is preferably polyvalent alcohol.

[0399] in addition, constitute in the acid of ester oiliness improver, as monoprotic acid, use the lipid acid of carbon number 2～24 usually, this lipid acid can be straight chain, also can be side chain, and can be saturated, also can be undersaturated.Monoprotic acid can use a kind separately, perhaps also can will be used in combination more than 2 kinds.

[0400] as polyprotonic acid, can enumerate diprotic acid, trimellitic acid etc., be preferably diprotic acid.Diprotic acid can be any in chain diprotic acid, the ring-type diprotic acid.In addition, when being the chain diprotic acid, can be in straight chain shape, the chain any, in addition, can be in saturated, unsaturated any.As the chain diprotic acid, the chain diprotic acid of preferred carbon number 2～16, for example can enumerate oxalic acid particularly, propanedioic acid, the Succinic Acid of straight or branched, the pentanedioic acid of straight or branched, the hexanodioic acid of straight or branched, the pimelic acid of straight or branched, the suberic acid of straight or branched, the nonane diacid of straight or branched, the sebacic acid of straight or branched, the undecane diacid of straight or branched, the dodecanedioic acid of straight or branched, the undecane dicarboxylic acid of straight or branched, the tetradecane diacid of straight or branched, the pentadecane dicarboxylic acid of straight or branched, the Thapsic acid of straight or branched, the hexene diacid of straight or branched, the pentene dicarboxylic acid of straight or branched, the octene diacid of straight or branched, the nonene diacid of straight or branched, the octene dicarboxylic acid of straight or branched, the undecene diacid of straight or branched, the decene dicarboxylic acid of straight or branched, the tridecylene diacid of straight or branched, the tetracosendioic acid of straight or branched, the heptadecene diacid of straight or branched, the hexadecylene diacid of straight or branched and their mixture etc.In addition, as the ring-type diprotic acid, can enumerate 1,2-cyclohexane dicarboxylic acid, 4-tetrahydrobenzene-1,2-dicarboxylic acid, aromatic dicarboxylic acid etc.Wherein, consider preferred chain diprotic acid from the viewpoint of stability.

[0401] as the acid that constitutes ester class oiliness improver, as mentioned above, can be monoprotic acid, also can be polyprotonic acid, considers preferred monoprotic acid from the viewpoint that the raising effect of rubbing characteristics is better.

[0402] alcohol in the ester class oiliness improver is arbitrarily with the combination of acid, does not have particular restriction, can enumerate for example by following (i)～(ester that is combined to form vii).

(i) ester of monohydroxy-alcohol and monoprotic acid formation

The (ii) ester that forms of polyvalent alcohol and monoprotic acid

The (iii) ester that forms of monohydroxy-alcohol and polyprotonic acid

The (iv) ester that forms of polyvalent alcohol and polyprotonic acid

(the v) mixed ester that forms of the mixture of monohydroxy-alcohol, polyvalent alcohol and polyprotonic acid

(the vi) mixed ester that forms of the mixture of polyvalent alcohol and monoprotic acid, polyprotonic acid

(the vii) mixed ester that forms of the mixture of monohydroxy-alcohol, polyvalent alcohol and monoprotic acid, polyprotonic acid.

[0403] (ii) above-mentioned～(various esters vii) can be the whole esterified full esters that form of carboxyl of hydroxyl groups or polyprotonic acid, in addition, it also can be the partial ester that a part wherein left behind as hydroxyl or carboxyl, consider from the viewpoint of the raising effect of rubbing characteristics, be preferably partial ester.

[0404] above-mentioned (i)～(in the ester vii), the ester that preferred (ii) polyvalent alcohol and monoprotic acid form.The raising effect of the rubbing characteristics of this ester is very high.

[0405] in addition, in above-mentioned ester (ii), monacid carbon number is considered from the viewpoint that rubbing characteristics further improves, and is preferably more than 10, more preferably more than 12, more preferably more than 14.

[0406] in addition, monacid carbon number is considered from the viewpoint that prevents to separate out, and is preferably below 28, more preferably below 26, more preferably below 24.As this ester, can enumerate glyceryl monooleate, dehydrated sorbitol mono-fatty acid ester etc.

[0407], can enumerate illustrated alcohol in the explanation of above-mentioned ester oiliness improver as pure oiliness improver.The carbon number of alcohol oiliness improver is considered from the viewpoint that improves rubbing characteristics, is preferably more than 6, more preferably more than 8, most preferably is more than 10.In addition, if carbon number is excessive, then might becomes and separate out easily, therefore, carbon number is preferably below 24, more preferably below 20, most preferably is below 18.

[0408] as the carboxylic acid oiliness improver, can be monoprotic acid, also can be polyprotonic acid.As this carboxylic acid, for example can enumerate illustrated monoprotic acid and polyprotonic acid in the explanation of ester oiliness improver.Wherein, consider preferred monoprotic acid from the viewpoint that improves rubbing characteristics.In addition, the carbon number of carboxylic acid oiliness improver is considered from the viewpoint that improves rubbing characteristics, is preferably more than 6, more preferably more than 8, most preferably is more than 10.In addition, if the carbon number of carboxylic acid oiliness improver is excessive, then might becomes and separate out easily, therefore, carbon number is preferably below 24, more preferably below 20, most preferably is below 18.

[0409], can enumerate the etherate of 3～6 yuan aliphatic polyol, 3～6 yuan two molecule condensess of aliphatic polyol or etherate of three molecule condensess etc. as the ether oiliness improver.

The etherate of [0410] 3～6 yuan aliphatic polyol for example, is represented by following general formula (35)～(40).

[changing 36]

[changing 37]

[changing 38]

[changing 39]

[changing 40]

[changing 41]

[in the formula, R ⁹¹～R ¹¹⁵Can be identical or different, represent the alkyl, allyl group, aralkyl of the straight or branched of hydrogen atom or carbon number 1～18 separately, by-(R ^aO) _n-R ^b(wherein, R ^aThe alkylidene group of expression carbon number 2～6; R ^bAlkyl, allyl group, the aralkyl of expression carbon number 1～20; N represents 1～10 integer) expression the glycol ethers residue].

[0411] as the concrete example of 3～6 yuan aliphatic polyol, can enumerate glycerine, TriMethylolPropane(TMP), tetrahydroxybutane, tetramethylolmethane, arabitol, Sorbitol Powder, mannitol etc.As the R in above-mentioned general formula (35)～(40) ⁹¹～R ¹¹⁵, can enumerate methyl, ethyl, n-propyl, sec.-propyl, various butyl, various amyl group, various hexyl, various heptyl, various octyl group, various nonyl, various decyl, various undecyl, various dodecyl, various tridecyl, various tetradecyl, various pentadecyl, various hexadecyl, various heptadecyl, various octadecyl, phenyl, benzyl etc.In addition, above-mentioned etherate also comprises R ⁹¹～R ¹¹⁵A part be the part etherate of hydrogen atom.

[0412], can enumerate by the condenses of the same race or not of the same race in the compound of above-mentioned general formula (35)～(40) expression as the two molecule condensess of 3～6 yuan aliphatic polyol or the etherate of three molecule condensess.For example, represent by general formula (41) and (42) respectively by the two molecule condensess of the alcohol of general formula (35) expression and the etherate of three molecule condensess.In addition, represent by general formula (43) and (44) respectively by the two molecule condensess of the alcohol of general formula (38) expression and the etherate of three molecule condensess.

[changing 42]

[changing 43]

[changing 44]

[changing 45]

[in the formula, R ⁹¹～R ⁹³And R ¹⁰¹～R ¹⁰⁴Respectively the expression with formula (35) in R ⁹¹～R ⁹³And the R in the formula (38) ¹⁰¹～R ¹⁰⁴Identical definition content].

[0413] as two molecule condensess of 3～6 yuan aliphatic polyol, the concrete example of three molecule condensess, can enumerate Glycerol dimer, ditrimethylolpropane, dipentaerythritol, two Sorbitol Powder, triglycerin, three (TriMethylolPropane(TMP)), tripentaerythritol, triallylidene sorbitol etc.

[0414] in the ether oiliness improver by general formula (35)～(40) expression, six propyl ethers of two (methoxyl group isopropylidene) dodecyl, three ethers of phenylbenzene octyl group three ethers of preferably glycerine, TriMethylolPropane(TMP), four hexyl ether of tetramethylolmethane, Sorbitol Powder, the dimethyl dioctyl tetraether of Glycerol dimer, four (methoxyl group isopropylidene) decyl pentaether of triglycerin, six propyl ethers of dipentaerythritol, pentamethyl-octyl group six ethers of tripentaerythritol.

[0415] oiliness improver that can use in the present invention except above-mentioned, also can be enumerated amine oiliness improver, acid amides oiliness improver etc.

[0416] as the amine oiliness improver, can enumerate monoamine, polyamines, alkanolamine etc., wherein, consider preferred monoamine from the viewpoint that improves rubbing characteristics.

[0417] as monoamine, for example can enumerate single methylamine particularly, dimethylamine, Trimethylamine 99, mono aminoethane, diethylamine, triethylamine, single propylamine, dipropyl amine, tripropyl amine, dibutyl amine, dibutylamine, Tributylamine, monoamylamine, diamylamine, triamylamine, single hexylamine, dihexylamine, single heptyl amice, two heptyl amices, single octylame, Di-Octyl amine, single nonyl amine, single decyl amine, single undecyl amine, single lauryl amine, single tridecyl amine, single tetradecylamine, single pentadecyl amine, single hexadecylamine, single heptadecyl amine, single octadecylamine, single nonadecyl amine, single eicosyl amine, single heneicosyl amine, single docosyl amine, single tricosyl amine, dimethyl (ethyl) amine, dimethyl (propyl group) amine, dimethyl (butyl) amine, dimethyl (amyl group) amine, dimethyl (hexyl) amine, dimethyl (heptyl) amine, dimethyl (octyl group) amine, dimethyl (nonyl) amine, dimethyl (decyl) amine, dimethyl (undecyl) amine, dimethyl (dodecyl) amine, dimethyl (tridecyl) amine, dimethyl (tetradecyl) amine, dimethyl (pentadecyl) amine, dimethyl (hexadecyl) amine, dimethyl (heptadecyl) amine, dimethyl (octadecyl) amine, dimethyl (nonadecyl) amine, dimethyl (eicosyl) amine, dimethyl (heneicosyl) amine, alkylamines such as dimethyl (tricosyl) amine;

Mono-vinyl amine, divinyl amine, trivinyl amine, single propenyl amine, diallyl amine, three propenyl amine, only son's alkenyl amine, dibutene base amine, three butenyl amine, single pentenyl amine, diamylene amine, three pentenyl amine, single hexenyl amine, two hexenyl amine, single heptenyl amine, two heptenyl amine, single octenyl amine, two octenyl amine, list alkenyl amine in the ninth of the ten Heavenly Stems, list alkenyl amine in the last of the ten Heavenly stems, single undecenyl amine, single dodecenyl succinic amine, single tridecylene base amine, single tetradecene base amine, Dan Shiwu carbon alkenyl amine, single cetene base amine, single heptadecene base amine, single vaccenic acid base amine, Dan Shijiu carbon alkenyl amine, single eicosylene base amine, single heneicosene base amine, single two dodecenyl succinic amine, alkenyl amines such as single tricosene base amine;

Dimethyl (vinyl) amine, dimethyl (propenyl) amine, dimethyl (butenyl) amine, dimethyl (pentenyl) amine, dimethyl (hexenyl) amine, dimethyl (heptenyl) amine, dimethyl (octenyl) amine, dimethyl (nonene base) amine, dimethyl (decene base) amine, dimethyl (undecenyl) amine, dimethyl (dodecenyl succinic) amine, dimethyl (tridecylene base) amine, dimethyl (tetradecene base) amine, dimethyl (15 carbene base) amine, dimethyl (cetene base) amine, dimethyl (heptadecene base) amine, dimethyl (vaccenic acid base) amine, dimethyl (19 carbene base) amine, dimethyl (eicosylene base) amine, dimethyl (heneicosene base) amine, the monoamine with alkyl and thiazolinyl of dimethyl (tricosene base) amine etc.;

Single phenylethylamine), dibenzyl amine, two (1-phenylethyl) amine, two (2-phenyl ethylidene) amine (another name: aromatic series substituted alkylamine such as phenpromethamine) monobenzyl amine, (1-phenylethyl) amine, (2-phenylethyl) amine (another name:;

The Cycloalkyl amine of the carbon number 5～16 of monocycle amylamine, dicyclo amylamine, three cyclopentamine, monocycle hexylamine, dicyclo hexylamine, monocycle heptyl amice, dicyclo heptyl amice etc.;

The monoamine with alkyl and cycloalkyl of dimethyl (cyclopentyl) amine, dimethyl (cyclohexyl) amine, dimethyl (suberyl) amine etc.;

(methylcyclopentyl) amine, two (methylcyclopentyl) amine, (dimethylcyclopentyl) amine, two (dimethylcyclopentyl) amine, (ethyl cyclopentyl) amine, two (ethyl cyclopentyl) amine, (methylethyl cyclopentyl) amine, two (methylethyl cyclopentyl) amine, (diethyl cyclopentyl) amine, (methylcyclohexyl) amine, two (methylcyclohexyl) amine, (Dimethylcyclohexyl) amine, two (Dimethylcyclohexyl) amine, (ethyl cyclohexyl) amine, two (ethyl cyclohexyl) amine, (methylethyl cyclohexyl) amine, (diethyl cyclohexyl) amine, (methyl suberyl) amine, two (methyl suberyl) amine, (dimethyl suberyl) amine, (ethyl suberyl) amine, (methylethyl suberyl) amine, the alkyl-cycloalkyl amine of (diethyl suberyl) amine etc.; Deng.In addition, in the above-mentioned monoamine, also comprise monoamine tallow amine etc., that derive and form by grease.Illustrated that these compounds comprise whole isomer separately.

[0418] in the above-mentioned monoamine, consider from the viewpoint that improves rubbing characteristics, especially, preferred alkyl amine, monoamine, monoamine, Cycloalkyl amine and alkyl-cycloalkyl amine with alkyl and cycloalkyl with alkyl and thiazolinyl, more preferably alkylamine, have the monoamine of alkyl and thiazolinyl.

[0419] carbon number about monoamine does not have particular restriction, considers from the viewpoint of rust-preventing characteristic, is preferably more than 8, more preferably more than 12.In addition, consider, be preferably below 24, more preferably below 18 from the viewpoint that improves rubbing characteristics.

[0420] and then, for also not having particular restriction with the number of the alkyl of nitrogen atom bonding in the monoamine, consider from the viewpoint that improves rubbing characteristics, be preferably 1～2, more preferably 1.

[0421] as the acid amides oiliness improver, the nitrogenous compounds such as amine compound that can enumerate the alkyl of the lipid acid or its acyl chlorides and the ammonia that make carbon number 6～30 or alkyl that only contains carbon number 1～8 in molecule or hydroxyl react and acid amides of obtaining etc.

[0422] as said lipid acid herein, can be straight chain fatty acid, also can be branched chain fatty acid, can be that saturated fatty acid also can be a unsaturated fatty acids.And, wish that its carbon number is 6～30, is preferably 9～24.

[0423] as this lipid acid, for example can enumerate particularly, saturated fatty acids such as enanthic acid, sad, n-nonanoic acid, capric acid, undecanoic acid, dodecylic acid, tridecanoic acid, tetradecanoic acid, pentadecylic acid, hexadecanoic acid, margaric acid, octadecanoic acid, nondecylic acid, arachic acid, heneicosanoic acid, docosoic acid, tricosanic acid, Lignoceric acid, pentacosoic acid, hexacosanoic acid, carboceric acid, octocosoic acid, montanic acid, triacontanoic acid (these saturated fatty acids can be the straight chain shapes, also can be chains); Heptenoic acid, octylenic acid, nonenoic acid, decylenic acid, undecylenic acid, dodecenoic acid, tridecylenic acid, tetradecenoic acid, pentadecylenic acid, hexadecylenic acid, heptadecenoic acid, octadecenoic acid (comprising oleic acid), jecoleic acid, eicosenoic acid, heneicosene acid, Decosahedaenoic acid, tricosenoic acid, tetracosenoic acid, Timnodonic Acid, hexacosenoic acid, cerotene acid, two octadecenoic acids, two jecoleic acids, (these unsaturated fatty acidss can be the straight chain shapes to unsaturated fatty acidss such as lumequeic acid, also can be a chain, and the position of two keys also be arbitrarily); Deng, preferably use lauric acid, tetradecanoic acid, palmitinic acid, stearic acid, oleic acid, by various grease deutero-straight chain fatty acids (coco-nut oil fatty acid etc.) or adopt the mixture etc. of synthetic straight chain fatty acid such as oxo synthesis and branched chain fatty acid.

[0424] as with the nitrogenous compound of above-mentioned fatty acid response, can enumerate ammonia particularly; Alkylamines (alkyl can be the straight chain shape, also can be a chain) such as single methylamine, mono aminoethane, single propylamine, dibutyl amine, monoamylamine, single hexylamine, single heptyl amice, single octylame, dimethylamine, methyl ethyl-amine, diethylamine, methyl propylamine, ethyl propylamine, dipropyl amine, methylbutylamine, ethyl butyl amine, propyl group butylamine, dibutylamine, diamylamine, dihexylamine, two heptyl amices, Di-Octyl amine; Alkanolamines (chain triacontanol base can be the straight chain shape, also can be a chain) such as single carbinolamine, monoethanolamine, single Propanolamine, only son's hydramine, single amylalcohol amine, single hexanol amine, single enanthol amine, single octanol amine, single nonyl alcohol amine, dimethanolamine, methanol amine, diethanolamine, methyl alcohol Propanolamine, ethanol propanol amine, dipropanolamine, methyl alcohol butanolamine, ethanol and butanol amine, propyl alcohol butanolamine, two butanolamines, diamyl hydramine, two hexanol amine, two enanthol amine, two octanol amine; And their mixture etc.

[0425] as fatty amide, particularly, especially preferably use laurylamide, lauric acid diethyl amide, the single propyl alcohol acid amides of lauric acid, myristic amide, the tetradecanoic acid diglycollic amide, tetradecanoic acid list propyl alcohol acid amides, palmitic amide, the palmitinic acid diglycollic amide, palmitinic acid list propyl alcohol acid amides, stearylamide, Stearic acid diethanolamine salt, stearic acid list propyl alcohol acid amides, oleylamide, oleic acid diethyl amide, oleic acid list propyl alcohol acid amides, the Oleum Cocois fatty amide, cocoanut fatty acid diethanolamide, coco-nut oil fatty acid list propyl alcohol acid amides, the synthetic mixing-in fat acid amides of carbon number 12～13, the synthetic mixed fatty acid diglycollic amide of carbon number 12～13, the synthetic mixed fatty acid list propyl alcohol acid amides of carbon number 12～13, and their mixture etc.

[0426] in the oiliness improver, considers, be preferably polyol partial esters and fatty amide from the viewpoint of the raising effect of rubbing characteristics.

[0427] content of the oiliness improver in the hydraulic oil composition of the present embodiment is arbitrarily, consider from the viewpoint that the raising effect of rubbing characteristics is good, with the total composition is benchmark, be preferably more than the 0.01 quality %, more preferably more than the 0.05 quality %, more preferably more than the 0.1 quality %.In addition, this content is considered from the viewpoint that prevents to separate out, and is benchmark with the total composition, is preferably below the 10 quality %, more preferably below the 7.5 quality %, more preferably below the 5 quality %.

[0428] in addition, the hydraulic oil composition of the present embodiment is considered from the viewpoint that improves thermal oxidation stability, preferably contains the triazole and/or its derivative that have by the structure of following formula (45) expression.

[changing 46]

[0429] in the formula (45), 2 dotted lines are illustrated in the nuclear substituted identical or different substituting group of triazole separately, are preferably alkyl, and the two is bonding and constitute cyclic group mutually, for example fused benzene rings.

[0430], is benzotriazole and/or its derivative as triazole and/or the preferred compound of its derivative.

[0431], can enumerate compound by following formula (46) expression as above-mentioned benzotriazole.

[changing 47]

[0432] in addition,, for example can enumerate, by the alkyl benzotriazole of following general formula (47) expression with by (alkyl) aminoalkyl group benzotriazole of general formula (48) expression etc. as benzotriazole derivatives.

[changing 48]

[changing 49]

[0433] in the above-mentioned formula (47), R ¹¹⁶The alkyl of the straight or branched of expression carbon number 1～4, preferable methyl or ethyl, and also x represents 1～3 integer, preferred 1 or 2.As R ¹¹⁶, can enumerate for example methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, the tertiary butyl etc.As alkyl benzotriazole, particularly consider preferred R from the good viewpoint of resistance to thermooxidation by formula (47) expression ¹¹⁶For methyl or ethyl, x are 1 or 2 compound, for example, Methylbenzotriazole (tolyl-triazole), dimethylbiphenyl triazole, ethyl benzotriazole, ethyl-methyl benzotriazole, diethyl benzo triazole or their mixture etc.

[0434] in the above-mentioned formula (48), R ¹¹⁷The alkyl of the straight or branched of expression carbon number 1～4, preferable methyl or ethyl; R ¹¹⁸Expression methylene radical or ethylidene; R ¹¹⁹And R ¹²⁰Can be identical or different, represent the alkyl of the straight or branched of hydrogen atom or carbon number 1～18 separately, the alkyl of the straight or branched of preferred carbon number 1～12; And y represents 0～3 integer, is preferably 0 or 1.As R ¹¹⁷, can enumerate for example methyl, ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, the tertiary butyl etc.As R ¹¹⁹And R ¹²⁰For example can enumerate hydrogen atom, methyl, ethyl, propyl group, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, the tertiary butyl, the amyl group of straight or branched, the hexyl of straight or branched, the heptyl of straight or branched, the octyl group of straight or branched, the nonyl of straight or branched, the decyl of straight or branched, the undecyl of straight or branched, the dodecyl of straight or branched, the tridecyl of straight or branched, the tetradecyl of straight or branched, the pentadecyl of straight or branched, the hexadecyl of straight or branched, the heptadecyl of straight or branched, alkyl such as the octadecyl of straight or branched.

[0435] as (alkyl) amino benzotriazole by above-mentioned formula (48) expression, especially, consider from the viewpoint that oxidation-resistance is good, preferably use R ¹¹⁷For methyl, y are 0 or 1, R ¹¹⁸Be methylene radical or ethylidene, R ¹¹⁹And R ¹²⁰Dialkyl aminoalkyl benzotriazole or dialkyl aminoalkyl tolyl-triazole or their mixture etc. for the alkyl of the straight or branched of carbon number 1～12.As these dialkyl aminoalkyl benzotriazoles, for example can enumerate the dimethylamino methyl benzotriazole, the diethylin Methylbenzotriazole, two (straight or branched) third amino methyl benzotriazole, two (straight or branched) fourth amino methyl benzotriazole, two (straight or branched) penta amino methyl benzotriazole, the own amino methyl benzotriazole of two (straight or brancheds), two (straight or branched) amino methyl in heptan benzotriazole, the hot amino methyl benzotriazole of two (straight or brancheds), two (straight or branched) amino methyl in ninth of the ten Heavenly Stems benzotriazole, two (straight or branched) amino methyl in last of the ten Heavenly stems benzotriazole, two (straight or branched) undecyl amino methyl benzotriazole, two (straight or branched) dodecyl amino methyl benzotriazole; The dimethylaminoethyl benzotriazole, the diethyllaminoethyl benzotriazole, two (straight or branched) third amino-ethyl benzotriazole, two (straight or branched) fourth amino-ethyl benzotriazole, two (straight or branched) penta amino-ethyl benzotriazole, the own amino-ethyl benzotriazole of two (straight or brancheds), two (straight or branched) amino-ethyl in heptan benzotriazole, the hot amino-ethyl benzotriazole of two (straight or brancheds), two (straight or branched) amino-ethyl in ninth of the ten Heavenly Stems benzotriazole, two (straight or branched) amino-ethyl in last of the ten Heavenly stems benzotriazole, two (straight or branched) undecyl amino-ethyl benzotriazole, two (straight or branched) dodecyl amino-ethyl benzotriazole; The dimethylamino methyl tolyl-triazole, diethylin methyl tolyl-triazole, two (straight or branched) third amino methyl tolyl-triazole, two (straight or branched) fourth amino methyl tolyl-triazole, two (straight or branched) penta amino methyl tolyl-triazole, the own amino methyl tolyl-triazole of two (straight or brancheds), two (straight or branched) amino methyl in heptan tolyl-triazole, the hot amino methyl tolyl-triazole of two (straight or brancheds), two (straight or branched) amino methyl in ninth of the ten Heavenly Stems tolyl-triazole, two (straight or branched) amino methyl in last of the ten Heavenly stems tolyl-triazole, two (straight or branched) undecyl amino methyl tolyl-triazole, two (straight or branched) dodecyl amino methyl tolyl-triazole; The dimethylaminoethyl tolyl-triazole, the diethyllaminoethyl tolyl-triazole, two (straight or branched) third amino-ethyl tolyl-triazole, two (straight or branched) fourth amino-ethyl tolyl-triazole, two (straight or branched) penta amino-ethyl tolyl-triazole, the own amino-ethyl tolyl-triazole of two (straight or brancheds), two (straight or branched) amino-ethyl in heptan tolyl-triazole, the hot amino-ethyl tolyl-triazole of two (straight or brancheds), two (straight or branched) amino-ethyl in ninth of the ten Heavenly Stems tolyl-triazole, two (straight or branched) amino-ethyl in last of the ten Heavenly stems tolyl-triazole, two (straight or branched) undecyl amino-ethyl tolyl-triazole, two (straight or branched) dodecyl amino-ethyl tolyl-triazole; Perhaps their mixture etc.

[0436] content of the triazole in the hydraulic oil composition of the present embodiment and/or its derivative is arbitrarily, is benchmark with the total composition, is preferably more than the 0.001 quality %, more preferably more than the 0.005 quality %.When the content of triazole and/or its derivative during less than 0.001 quality %, the inadequate tendency because the raising effect of the thermal oxidation stability that its interpolation brings becomes.In addition, the content of triazole and/or its derivative is benchmark with the total composition, is preferably below the 1.0 quality %, more preferably below the 0.5 quality %.When surpassing 1.0 quality %, can not get the further raising effect with the corresponding thermal oxidation stability of content, might be unfavorable economically.

[0437] in addition, the hydraulic oil composition of the present embodiment, in order further to improve its performance, also can be as required, make its individually or several to contain with the viscosity index improver beyond rust-preventive agent, metal passivator, the above-mentioned decentralized viscosity index improver or detergent-dispersant additive, pour point reducer, defoamer etc. in combination be the various additives of representative.

[0438], can enumerate metallic soap classes such as fatty acid metal salt, lanolin fatty acid metal-salt, oxidized petroleum waves metal-salt particularly as rust-preventive agent; Polyol partial esters classes such as sorbitan fatty acid esters; Ester classes such as lanolin fatty acid ester; Sulfonates such as calcium sulphonate, barium sulfonate; Oxidized petroleum waves; Amine; Phosphoric acid; Phosphoric acid salt etc.In the present embodiment, can make wherein and contain the compound of from above-mentioned rust-preventive agent, selecting arbitrarily more than a kind or 2 kinds with any amount, usually, its content is benchmark with the total composition, hope is 0.01～1 quality %.

[0439], particularly, except above-mentioned benzotriazole compound, also can enumerate glyoxaline compound etc. as metal passivator.In the present embodiment, can make wherein and contain the compound of from these metal passivators, selecting arbitrarily more than a kind or 2 kinds to measure arbitrarily, usually, its content is benchmark with the total composition, hope is 0.001～1 quality %.

[0440] in addition, as the viscosity index improver beyond the decentralized viscosity index improver, can enumerate particularly the monomeric multipolymer more than a kind or 2 kinds from various methacrylic esters, selected or its hydride, ethene-alpha-olefin copolymer (, can enumerate propylene, 1-butylene, 1-amylene etc.) or its hydride, polyisobutene or its hydride, vinylbenzene-hydrogenated diene copolymer and polyoxyethylene alkylphenyl ethene etc. as alpha-olefin, so-called non-dispersive type viscosity index improver etc.In addition, as the detergent-dispersant additive beyond the decentralized viscosity index improver, can enumerate alkenyl succinimide, sulfonate (ester), salicylate (ester), phenates etc.In the present embodiment, can make wherein and contain the compound of from these viscosity index improvers or detergent-dispersant additive, selecting arbitrarily more than a kind or 2 kinds to measure arbitrarily, usually, its content is benchmark with the total composition, hope is 0.01～10 quality %.

[0441], can enumerate the monomeric multipolymer more than a kind or 2 kinds from various acrylate and methacrylic ester, selected or its hydride etc. particularly as pour point reducer.In the present embodiment, can make wherein and contain the compound of from these pour point reducers, selecting arbitrarily more than a kind or 2 kinds to measure arbitrarily, usually, its content is benchmark with the total composition, hope is 0.01～5 quality %.

[0442], can enumerate type siloxanes such as dimethyl siloxane, fluoro siloxanes particularly as defoamer.In the present embodiment, can make wherein and contain the compound of from these defoamers, selecting arbitrarily more than a kind or 2 kinds to measure arbitrarily, usually, its content is benchmark with the total composition, hope is 0.0001～0.05 quality %.

[0443] has the hydraulic oil composition of the present embodiment of above-mentioned formation, can realize the over-all properties of wear resistance, rubbing characteristics, thermal oxidation stability and viscosity-temperature profile well with high level and balance.Be very useful aspect the high performance of hydraulic system and energy-conservationization.

[0444] as the hydraulic efficiency installation of the hydraulic oil composition of using the present embodiment, do not have particular restriction, for example can enumerate, injection moulding machine, work mechanism, construction implement, system iron equipment, industry automatic gear (robot), hydraulic hoisting machine etc.

[0445] (the 4th embodiment; Metalworking fluid composition)

The Metalworking fluid composition of the 4th embodiment of the present invention contain the invention described above lubricant base and from ester, alcohol, carboxylic acid and contain phosphorus and/or sulphur as at least a kind of lubricity improver selecting the compound that constitutes element.

Illustrated that [0446] in the Metalworking fluid composition of the present embodiment, the scheme of lubricant base of the present invention is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0447] in addition, in the Metalworking fluid composition of the present embodiment, can use the lubricant base of the invention described above separately, in addition, also can also using more than a kind or 2 kinds with lubricant base of the present invention and other base oils.Illustrated, the concrete example of other base oils and lubricant base of the present invention shared ratio in mixed base oil, identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0448] in addition, the Metalworking fluid composition of the present embodiment contain from ester, alcohol, carboxylic acid and contain phosphorus and/or sulphur as at least a kind of lubricity improver selecting the compound that constitutes element.

[0449] formation can be 1 yuan of alcohol as the alcohol of the ester of lubricity improver, also can be polyvalent alcohol.In addition, constituting the carboxylic acid of this ester, can be monoprotic acid, also can be polyprotonic acid.

[0450] as 1 yuan of alcohol, use 1 yuan of alcohol of carbon number 1～24 usually, as this alcohol, can be straight chain, also can be side chain.Alcohol as carbon number 1～24, for example can enumerate methyl alcohol particularly, ethanol, the propyl alcohol of straight or branched, the butanols of straight or branched, the octanol of straight or branched, the nonyl alcohol of straight or branched, the decyl alcohol of straight or branched, the hendecanol of straight or branched, the dodecanol of straight or branched, the tridecyl alcohol of straight or branched, the tetradecanol of straight or branched, the pentadecylic alcohol of straight or branched, the cetyl alcohol of straight or branched, the heptadecanol of straight or branched, the Stearyl alcohol of straight or branched, the nonadecanol of straight or branched, the eicosanol of straight or branched, the heneicosane alcohol of straight or branched, the tricosanol of straight or branched, the Tetracosyl alcohol of straight or branched and their mixture.

[0451] in addition, as polyvalent alcohol, use 2～10 yuan, preferred 2～6 yuan polyvalent alcohol usually.As 2～10 yuan of polyvalent alcohols, for example can enumerate ethylene glycol, glycol ether, polyoxyethylene glycol (3～15 polymers of ethylene glycol), propylene glycol, dipropylene glycol, polypropylene glycol (3～15 polymers of propylene glycol), 1 particularly, ammediol, 1,2-propylene glycol, 1,3 butylene glycol, 1,4-butyleneglycol, 2-methyl isophthalic acid, 2-propylene glycol, 2-methyl isophthalic acid, ammediol, 1,2-pentanediol, 1,3-pentanediol, 1,4-pentanediol, 1,2 yuan of alcohol such as 5-pentanediol, neopentyl glycol; Glycerine, Polyglycerine (2～8 polymers of glycerine, for example Glycerol dimer, triglycerin, four glycerine), trimethylol-alkanes (trimethylolethane, TriMethylolPropane(TMP), tri hydroxy methyl butane etc.) and their 2～8 polymers, tetramethylolmethane and their 2～4 polymers, 1,2,4-trihydroxybutane, 1,3,5-penta triol, 1,2,6-hexanetriol, 1,2,3, polyvalent alcohols such as 4-butantetraol, Sorbitol Powder, sorbitan, Sorbitol Powder glycerol condensate, adonitol, arabitol, Xylitol, mannitol; Carbohydrate and their mixtures such as wood sugar, pectinose, ribose, rhamnosyl, glucose, fructose, semi-lactosi, seminose, sorbose, cellobiose, maltose, isomaltose, trehalose, sucrose.

[0452] wherein, especially, more preferably ethylene glycol, glycol ether, polyoxyethylene glycol (3～10 polymers of ethylene glycol), propylene glycol, dipropylene glycol, polypropylene glycol (3～10 polymers of propylene glycol), 1, ammediol, the 2-methyl isophthalic acid, the 2-propylene glycol, the 2-methyl isophthalic acid, ammediol, neopentyl glycol, glycerine, Glycerol dimer, triglycerin, trimethylol-alkanes (trimethylolethane, TriMethylolPropane(TMP), tri hydroxy methyl butane etc.) and their 2～4 polymers, tetramethylolmethane, dipentaerythritol, 1,2, the 4-trihydroxybutane, 1,3,5-penta triol, 1,2, the 6-hexanetriol, 1,2,3, the 4-butantetraol, Sorbitol Powder, sorbitan, the Sorbitol Powder glycerol condensate, adonitol, arabitol, Xylitol, polyvalent alcohol that mannitol etc. are 2～6 yuan and their mixture etc.More preferably ethylene glycol, propylene glycol, neopentyl glycol, glycerine, trimethylolethane, TriMethylolPropane(TMP), tetramethylolmethane, sorbitan and their mixture etc.

[0453] in addition, as the monoprotic acid that constitutes ester, being generally the lipid acid of carbon number 6～24, can be straight chain, also can be side chain, and, can be saturated, also can be undersaturated.For example can enumerate the caproic acid of straight or branched particularly, straight or branched sad, the n-nonanoic acid of straight or branched, the capric acid of straight or branched, the undecanoic acid of straight or branched, the dodecylic acid of straight or branched, the tridecanoic acid of straight or branched, the tetradecanoic acid of straight or branched, the pentadecylic acid of straight or branched, the hexadecanoic acid of straight or branched, the octadecanoic acid of straight or branched, the hydroxyl octadecanoic acid of straight or branched, the nondecylic acid of straight or branched, the arachic acid of straight or branched, the heneicosanoic acid of straight or branched, the docosoic acid of straight or branched, the tricosanic acid of straight or branched, saturated fatty acids such as the Lignoceric acid of straight or branched; The hexenoic acid of straight or branched, the heptenoic acid of straight or branched, the octylenic acid of straight or branched, the nonenoic acid of straight or branched, the decylenic acid of straight or branched, the undecylenic acid of straight or branched, the dodecenoic acid of straight or branched, the tridecylenic acid of straight or branched, the tetradecenoic acid of straight or branched, the pentadecylenic acid of straight or branched, the hexadecylenic acid of straight or branched, the octadecenoic acid of straight or branched, the isorpcinoleic acid of straight or branched, the jecoleic acid of straight or branched, the eicosenoic acid of straight or branched, the heneicosene acid of straight or branched, the Decosahedaenoic acid of straight or branched, the tricosenoic acid of straight or branched, unsaturated fatty acidss such as the tetracosenoic acid of straight or branched, and their mixture.Wherein, saturated fatty acid, the unsaturated fatty acids of carbon number 8～20 and their mixture of preferred especially carbon number 8～20.

[0454], can enumerate the diprotic acid of carbon number 2～16 and trimellitic acid etc. as the polyprotonic acid that constitutes the ester oiliness improver.As the diprotic acid of carbon number 2～16, can be straight chain, also can be side chain, and, can be saturated, also can be undersaturated.For example can enumerate the undecane diacid of the nonane diacid of the hexanodioic acid of the Succinic Acid of oxalic acid, propanedioic acid, straight or branched, the pentanedioic acid of straight or branched, straight or branched, the suberic acid of straight or branched, straight or branched, the sebacic acid of straight or branched, straight or branched, the dodecanedioic acid of straight or branched, the undecane dicarboxylic acid of straight or branched, the tetradecane diacid of straight or branched, the pentadecane dicarboxylic acid of straight or branched, the Thapsic acid of straight or branched particularly; The tridecylene diacid of the undecene diacid of the nonene diacid of the hexene diacid of straight or branched, the octene diacid of straight or branched, straight or branched, the octene dicarboxylic acid of straight or branched, straight or branched, the decene dicarboxylic acid of straight or branched, straight or branched, the tetracosendioic acid of straight or branched, the heptadecene diacid of straight or branched, the hexadecylene diacid of straight or branched; And their mixture.

[0455] among the present invention, can use alcohol and the ester that carboxylic acid combines arbitrarily, this not had particular determination.Can preferably use following (i)～(ester vii) particularly.

(i) ester of monohydroxy-alcohol and monoprotic acid formation

The (ii) ester that forms of polyvalent alcohol and monoprotic acid

The (iii) ester that forms of monohydroxy-alcohol and polyprotonic acid

The (iv) ester that forms of polyvalent alcohol and polyprotonic acid

(the v) ester that forms of the alcohol mixture of monohydroxy-alcohol and polyvalent alcohol and polyprotonic acid

(the vi) ester that forms of the mixed carboxylic acid of polyvalent alcohol and monoprotic acid and polyprotonic acid

(the vii) ester that forms of the mixed carboxylic acid of the alcohol mixture of monohydroxy-alcohol and polyvalent alcohol and monoprotic acid and polyprotonic acid.

Being illustrated that [0456] when using polyvalent alcohol as pure composition, this ester can be the whole esterified full esters of hydroxyl in the polyvalent alcohol, in addition, also can be the not esterified and partial ester that still keep as hydroxyl of a part of hydroxyl.In addition, when using polyprotonic acid as the carboxylic acid composition, this ester can be the whole esterified full esters of carboxyl in the polyprotonic acid, also can be the not esterified and partial ester that still be retained as carboxyl of a part of carboxyl.

[0457] as the ester that uses in the present embodiment, can use above-mentioned any ester, wherein, consider from the viewpoint that processibility is better, the preferably ester that forms of (i) monohydroxy-alcohol and monoprotic acid, the (iii) ester of monohydroxy-alcohol and polyprotonic acid formation, the more preferably ester that forms of (i) monohydroxy-alcohol and monoprotic acid, the ester of the ester that most preferably will (i) monohydroxy-alcohol forms with monoprotic acid and (iii) monohydroxy-alcohol and polyprotonic acid formation is usefulness also.

[0458] in the present embodiment, the total carbon number of the ester that forms for (i) monohydroxy-alcohol of preferred use and monoprotic acid does not have particular restriction, and the lower value that preferably adds up to carbon number is the ester more than 7, more preferably the ester more than 9, the most preferably ester more than 11.In addition, the higher limit that preferably adds up to carbon number is the ester below 26, more preferably the ester below 24, the most preferably ester below 22.Carbon number for above-mentioned monohydroxy-alcohol does not have particular restriction, preferred carbon number 1～10, and more preferably carbon number 1～8, further preferred carbon number 1～6, most preferably carbon number 1～4.There is not particular restriction for above-mentioned monacid carbon number, preferred carbon number 8～22, more preferably carbon number 10～20, and most preferably carbon number 12～18.Illustrated, if the carbon number of above-mentioned total carbon number, above-mentioned alcohol and above-mentioned monacid carbon number surpass above-mentioned higher limit respectively, then exist to make and pollute or possibility that corrosive increases becomes greatly, lost flowability and unworkable possibility become big or because big etc. the tendency of the possibility change that the reduction of the solvability in lubricant base is separated out in the winter time.In addition, if the carbon number of above-mentioned total carbon number, above-mentioned alcohol and above-mentioned monacid carbon number separately less than lower value, then oilness has the tendency that becomes inadequate, in addition, might be because foul smell cause operating environment to worsen.

[0459] form of the ester that forms for preferred (iii) monohydroxy-alcohol that uses in the present embodiment and polyprotonic acid does not have particular restriction, is preferably the diester represented by following general formula (49) or the ester of trimellitic acid.

R ¹²¹-O-CO-(CH ₂) _n-CO-O-R ¹²² (49)

[in the formula, R ¹²¹And R ¹²²Can be identical or different, represent alkyl separately; N represents 4～8 integer].

[0460] R in the general formula (49) ¹²¹And R ¹²²Represent alkyl separately, the carbon number of this alkyl is preferably 3～10.Illustrated, if the carbon number of alkyl less than 3, then might be able to not be expected the raising effect of oilness, in addition, might be because foul smell causes operating environment to worsen.In addition, if the carbon number of alkyl surpasses 10, then exist make pollute or possibility that corrosive increases becomes greatly, in the winter time lost flowability and unworkable possibility become big, because big etc. the tendency of the possibility change that the reduction of the solvability in lubricant base is separated out.

[0461] conduct is by the R in the general formula (49) ¹²¹And R ¹²²Shown alkyl can be enumerated alkyl, thiazolinyl, alkyl-cycloalkyl, alkyl phenyl, phenylalkyl etc., special preferred alkyl.

[0462] works as R ¹²¹, R ¹²²During for alkyl, this alkyl can be any in straight chained alkyl or the branched-chain alkyl, and in addition, also can mix in a part has straight chained alkyl and branched-chain alkyl, preferred branched-chain alkyl.

[0463] conduct is by R ¹²¹And R ¹²²The alkyl of expression, for example can enumerate the heptyl of the amyl group of the propyl group of straight or branched, the butyl of straight or branched, straight or branched, the hexyl of straight or branched, straight or branched, the octyl group of straight or branched, the nonyl of straight or branched, the decyl of straight or branched etc. particularly.

[0464] in addition, the n in the general formula (49) represents 4～8 integer.Illustrated, if n surpasses 8, then exist make pollute or possibility that corrosive increases becomes greatly, in the winter time lost flowability and unworkable possibility become big, because big etc. the tendency of the possibility change that the reduction of the solvability in lubricant base is separated out.In addition, if n less than 4, then exist possibly can't expect oilness the raising effect, because foul smell causes the tendency of operating environment deterioration etc.And then, consider that from the easy acquisition of raw material and the viewpoint of price preferred especially n is 4 or 6 diester.

[0465] diester by above-mentioned general formula (49) expression can adopt arbitrary method to obtain, and can enumerate the straight chain saturated dicarboxylic acid that for example makes carbon number 6～10 (being hexanodioic acid, pimelic acid, suberic acid, nonane diacid, sebacic acid in order from carbon number 6 beginnings) or the alcohol of its derivative and carbon number 3～10 and carry out esterification method etc.

[0466] in addition, when ester is the ester that is formed by trimellitic acid and 1 yuan alcohol, there is not particular restriction for the carbon number of this 1 yuan of alcohol, preferred carbon number 1～10, more preferably carbon number 1～8, further preferred carbon number 1～6, most preferably carbon number 1～4.Illustrated, if the carbon number of 1 yuan of alcohol surpasses 10, then exist make pollute or possibility that corrosive increases becomes greatly, in the winter time lost flowability and unworkable possibility become big, because big etc. the tendency of the possibility change that the reduction of the solvability in lubricant base is separated out.The ester of trimellitic acid can be partial ester (monoesters or a diester), also can be full ester (three esters).

[0467] can be used as the particularly preferred example of the ester that lubricity improver uses, the diester that can enumerate Laurate methyl, butyl laurate, methyl stearate, butyl stearate, Witconol 2301, butyl oleate particularly and form by the alcohol of hexanodioic acid and carbon number 4～10.

[0468] in addition, can be used as the alcohol that lubricity improver uses, can enumerate illustrated 1 yuan of pure and mild polyvalent alcohol in the explanation of above-mentioned ester, wherein, preferred 1 yuan pure and mild 2 yuan alcohol more preferably use 1 yuan of alcohol separately, perhaps 1 yuan of alcohol and 2 yuan of alcohol are also used.In addition, as 2 yuan of alcohol, preferably have 2 yuan of alcohol of ehter bond at intramolecularly.

The carbon number of [0469] 1 yuan of pure and mild 2 yuan of alcohol is preferably more than 6, more preferably more than 7, more preferably more than 8, is preferably more than 9 especially.Illustrated, if the carbon number of 1 yuan of pure and mild 2 yuan of alcohol less than 6, then the oilness inadequate tendency that becomes in addition, might worsen owing to foul smell cause operating environment.In addition, the carbon number of 1 yuan of pure and mild 2 yuan of alcohol is preferably below 20, more preferably below 18.Illustrated, if the carbon number of 1 yuan of pure and mild 2 yuan of alcohol surpasses 20, then exist make pollute or possibility that corrosive increases becomes greatly, in the winter time lost flowability and unworkable possibility become big, because big etc. the tendency of the possibility change that the reduction of the solvability in lubricant base is separated out.

[0470] can be used as the particularly preferred example of the alcohol that lubricity improver uses, can enumerate 5～9 polymers of lauryl alcohol, tetradecyl alcohol, palmityl alcohol, oleyl alcohol, ethylene glycol, 2～6 polymers of propylene glycol and their mixture more than 2 kinds particularly.

[0471] in addition, can be used as the carboxylic acid that lubricity improver uses, can be monoprotic acid, also can be polyprotonic acid.For example can enumerate illustrated monoprotic acid and polyprotonic acid in the explanation of above-mentioned ester particularly.Wherein, consider preferred monoprotic acid from the viewpoint that processibility is better.

[0472] can be used as the carbon number of the carboxylic acid that lubricity improver uses, consider, be preferably more than 6, more preferably more than 8, more preferably more than 10 from the viewpoint that the raising effect of oilness is better.In addition, from suppressing the viewpoint consideration that pollution or corrosive take place, the carbon number of carboxylic acid is preferably below 20, more preferably below 18, more preferably below 16.

[0473] can be used as the particularly preferred example of the carboxylic acid that lubricity improver uses, can enumerate lauric acid, tetradecanoic acid, palmitinic acid and oleic acid particularly.

[0474] can be used as above-mentioned ester, the alcohol and carboxylic acid that lubricity improver uses, its oiliness effect is good especially.In the present embodiment, can use in ester, the alcohol and carboxylic acid a kind as lubricity improver separately, and, also can use the mixture more than 2 kinds, consider preferred ester and 1 yuan of alcohol, more preferably ester from the viewpoint that improves oilness.

[0475] as the above-mentioned ester of lubricity improver, the content of alcohol and carboxylic acid, be benchmark with the total composition, be preferably 0.1～70 quality %.That is, this content is considered from the viewpoint of the raising effect of oilness, is preferably more than the 0.1 quality %, more preferably more than the 0.2 quality %, more preferably more than the 0.5 quality %.In addition, in case cross at most to exist from content and pollute or the viewpoint consideration of possibility that corrosive increases etc., this content is preferably below the 70 quality %, more preferably below the 60 quality %, more preferably below the 50 quality %, further be preferably below the 15 quality %, be preferably especially below the 12 quality %, most preferably be below the 10 quality %.

[0476] in addition, as containing phosphorus and/or sulphur, can enumerate phosphorus compound and sulphur compound as the compound that constitutes element.The concrete example of phosphorus compound and preferred form, some is identical with the situation of above-mentioned the 1st embodiment, therefore, omits in this explanation with repeating part.In addition, the concrete example of sulphur compound and preferred form, identical with the situation of above-mentioned the 3rd embodiment, therefore, in this no longer repeat specification.

[0477] in the sulphur compound that uses in the present embodiment, if use at least a kind that selects from dialkyl polysulfide and sulfuration ester, then can obtain the raising effect of oilness with higher level, be preferred therefore.

[0478] in addition, can be used as the phosphorus compound that lubricity improver uses, for example can enumerate particularly, except illustrated phosphorus compound in the explanation of above-mentioned the 1st embodiment, also have the metal-salt of these phosphorus compounds etc.

[0479], can enumerate the salt that part or all neutralization of the acidic hydrogen of phosphorus compound is formed by with metal base as the metal-salt of phosphorus compound.As this metal base, can enumerate metal oxide, metal hydroxides, metal carbonate, metal chloride etc., as this metal, can enumerate basic metal such as lithium, sodium, potassium, caesium particularly; Alkaline-earth metals such as calcium, magnesium, barium; Heavy metals such as zinc, copper, iron, lead, nickel, silver, manganese etc.Wherein, alkaline-earth metal and zinc such as preferred calcium, magnesium.

[0480] metal-salt of above-mentioned phosphorus compound, its structure is according to the number of the OH base of the valence mumber of metal and phosphorus compound or SH base and different, therefore, for its structure without any qualification, for example, make zinc oxide 1mol and phosphodiester (the OH base is 1) when 2mol reacts,, thinking the molecule that also has the polymerization materialization though can think and to obtain compound by the structure of following formula (50) expression as principal constituent.

[0481] [changes 50]

[0482] in addition, for example, make zinc oxide 1mol and phosphate monoester (the OH base is 2) when 1mol reacts,, thinking the molecule that also has the polymerization materialization though can think and to obtain compound by the structure of following formula (51) expression as principal constituent.

[0483] [changes 51]

[0484] in addition, also can use their mixture more than 2 kinds.

[0485] in the present embodiment, in the above-mentioned phosphorus compound, considers the amine salt of preferably phosphoric acid ester, phosphate ester acid and phosphate ester acid from the viewpoint of the raising effect that obtains higher oilness.

[0486] in the present embodiment, as the particularly preferred example of the compound that contains phosphorus and/or sulphur that is used as lubricity improver, can enumerate Tritolyl Phosphate particularly, the tricresyl phosphate Lauryl Ester, the tricresyl phosphite Lauryl Ester, tricresyl phosphite oil base ester, phosphorous acid dilauryl ester, phosphorous acid dilauryl one hydrogen ester, the lauric acid phosphoric acid ester, the sulfuration grease, the sulfuration ester, phenylbenzene disulphide, the benzyl disulfide thing, didodecyl disulfide, two uncle's nonyl polysulfides, the tri o cresyl thiophosphate Lauryl Ester, trithio tricresyl phosphite Lauryl Ester, molybdenumdisulphide, molybdenum dithiophosphate, zinc dithiophosphate, molybdenum dithiocarbamate, and zinc dithiocarbamate.

[0487] Metalworking fluid composition of the present embodiment as lubricity improver, can only contain the side in sulphur compound or the phosphorus compound, also can contain sulphur compound and phosphorus compound.Consider from the viewpoint of the improvement effect of further raising oilness, preferably contain phosphorus compound or contain sulphur compound and phosphorus compound, more preferably contain sulphur compound and phosphorus compound.

[0488] when comprising, the Metalworking fluid composition of the present embodiment contains phosphorus and/or sulphur when constituting the compound of element, containing phosphorus and/or sulphur is arbitrarily as the content of the compound that constitutes element, consider from the viewpoint that improves oilness, with the total composition is benchmark, be preferably more than the 0.005 quality %, more preferably more than the 0.01 quality %, more preferably more than the 0.05 quality %.In addition, consider that from the viewpoint that prevents inordinate wear this content is benchmark with the total composition, is preferably below the 15 quality %, more preferably below the 10 quality %, more preferably below the 7 quality %.Illustrated that said content when independent use contains phosphorus and/or sulphur as a kind in the compound that constitutes element, is meant its content herein; When being used in combination more than 2 kinds, be meant that it adds up to content.

[0489] in the Metalworking fluid composition of the present embodiment, as lubricity improver, can use ester, alcohol, carboxylic acid separately and contain phosphorus and/or sulphur as a kind in the compound that constitutes element, and, also can will be used in combination more than 2 kinds.

[0490] Metalworking fluid composition of the present embodiment, can only contain above-mentioned lubricant base and lubricity improver, but in order further to improve its good effect, also can be as required, and then individually or add antioxidant, rust-preventive agent, anticorrosive agent, defoamer etc. more than 2 kinds in combination.The concrete example of these each additives is identical with the situation of above-mentioned the 1st～the 3rd embodiment, therefore, and in this no longer repeat specification.In addition, in the present embodiment, the total content of these additives is generally below the 15 quality %, is preferably 10 quality % following (all being benchmark with the total composition).

[0491] in addition, the Metalworking fluid composition of the present embodiment can also contain water.At this moment, the Metalworking fluid composition of the present embodiment can use with water and be external phase, and oil component disperses imperceptibly in this external phase, forms the emulsified state of emulsion; The solvable state of water dissolution in oil component; Perhaps make in water and the oil component blended suspension any by violent stirring.

[0492] when containing water in the Metalworking fluid composition of the present embodiment, as water, can use tap water, process water, ion exchanged water, distilled water etc., no matter be that hard water or soft water all can.

[0493] kinematic viscosity for the Metalworking fluid composition of the present embodiment does not have particular determination, and generally speaking, the kinematic viscosity in the time of 40 ℃ is preferably at 1～150mm ²In the scope of/s, more preferably at 2～100mm ²In the scope of/s.Illustrated, if the kinematic viscosity of Metalworking fluid composition in the time of 40 ℃ is less than 1mm ²/ s, then the processibility inadequate tendency that becomes.In addition, if this kinematic viscosity surpasses 150mm ²/ s, then in being in the oil removing operation of manufacturing procedure back segment, oil content is difficult to remove from workpiece.

[0494] has the Metalworking fluid composition of the present embodiment of above-mentioned formation, even do not improve viscosity or do not increase the consumption of additive, can obtain good processibility yet, and can keep its processibility with high level chronically, therefore, be suitable in the various metal processing.Process as the metal that the Metalworking fluid composition that uses the present embodiment carries out, for example can enumerate, volume is pressed processing, attenuate processing, stretch process, punch process, forging processing (comprising heat forged), cutting ground finish, rolling processing (comprising hot rolling and cold rolling) etc.In addition, the material of the workpiece that is used for the processing of these metals is not had particular restriction, for example can enumerate iron, stainless steel, aluminium or its alloy, nickel or its alloy, chromium or its alloy, copper or its alloy, zinc or its alloy, titanium or its alloy etc.

[0495] illustrated, though the Metalworking fluid composition of the present embodiment can be used for the processing of above-mentioned metal any, preferably according to the kind of metal processing suit in the Metalworking fluid composition of selection the present embodiment kinematic viscosity of lubricant base and the kind and the combination of lubricity improver.

[0496] for example, when the Metalworking fluid composition of the present embodiment was used for processing of volume pressure or punch process, the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃ was preferably 20～150mm ²/ s.In addition, at this moment,, preferred use alcohol (can be a straight chain shape or the chain any, in addition, also can be in saturated or unsaturated any from butyl stearate, carbon number 10～18 as lubricity improver.), select in oleic acid, sulfuration ester, sulfuration grease, zinc dithiophosphate and the Tritolyl Phosphate at least a kind, be preferably in following (A-1)～(A-8) any especially.

(A-1) combination of butyl stearate, sulfuration ester and Tritolyl Phosphate

(A-2) combination of oleic acid, sulfuration ester and Tritolyl Phosphate

(A-3) combination of butyl stearate, lauryl alcohol, oleic acid, sulfuration ester and Tritolyl Phosphate

(A-4) combination of sulfuration ester and Tritolyl Phosphate

(A-5) combination of sulfuration ester and zinc dithiophosphate

(A-6) combination of sulfuration grease and zinc dithiophosphate

(A-7) zinc dithiophosphate

(A-8) sulfuration ester.

[0497] in addition, when the Metalworking fluid composition of the present embodiment is used for the rolling man-hour that adds, the kinematic viscosity of lubricant base of the present invention in the time of 40 ℃ is preferably 4～20mm ²/ s.In addition, at this moment, as lubricity improver, it is preferred that to use alcohol from butyl stearate, butyl palmitate, Polycizer W 260, Octyl adipate, dinonyl adipate, didecyl adipate, oleic acid, carbon number 10～18 (can be a straight chain shape or the chain any, in addition, also can be in saturated or unsaturated any.) and Tritolyl Phosphate in select at least a kind, be preferably in following (B-1)～(B-7) any especially.

(B-1) combination of butyl stearate, lauryl alcohol, sulfuration ester and Tritolyl Phosphate

(B-2) combination of butyl stearate and lauryl alcohol

(B-3) combination of sulfuration ester and Tritolyl Phosphate

(B-4) butyl stearate, lauryl alcohol and oleic combination

(B-5) combination of butyl stearate, di adipate and lauryl alcohol

(B-6) combination of di adipate and lauryl alcohol

(B-7) di adipate, lauryl alcohol and oleic combination.

[0498] (the 5th embodiment; Heat-treatment oil composition)

The heat-treatment oil composition of the 5th embodiment of the present invention contains the lubricant base and the cooling property improving agent of the invention described above.

Illustrated that [0499] in the heat-treatment oil composition of the present embodiment, the form of lubricant base of the present invention is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0500] in addition, in the heat-treatment oil composition of the present embodiment, can use the lubricant base of the invention described above separately, in addition, also can also using more than a kind or 2 kinds with lubricant base of the present invention and other base oils.Illustrated that the concrete example of other base oils and lubricant base of the present invention shared ratio in mixed base oil is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0501] in addition, the heat-treatment oil composition of the present embodiment except above-mentioned lubricant base, also contains cooling property improving agent.As this cooling property improving agent, can enumerate (A-1) polyolefine and/or its hydride, (A-2) pitch and/or its insoluble composition and remove thing, (A-3) salicylic alkali earth metal salt etc.

[0502], can enumerate multipolymer, polybutene, 1-octene oligopolymer, 1-decene oligopolymer and the hydride thereof etc. of ethene and alpha-olefin as the polyolefine of above-mentioned (A-1) composition.(A) in the polyolefine of composition, from the effect of further raising hardenability, the good viewpoint of thermal oxidation stability is considered, preferably use the multipolymer of ethene and alpha-olefin.

[0503] polymeric species for the multipolymer of ethene and alpha-olefin does not have particular restriction, can be in random copolymerization, block copolymerization or the alternating copolymerization any.In addition, the ethene and the alpha-olefin that constitute the copolymerization chain can respectively be done for oneself a kind, also can be more than 2 kinds.

[0504] in addition, alpha-olefin can be the straight chain shape, also can be chain, and its carbon number is preferably 3～50, more preferably 3～20.As preferred alpha-olefin, can enumerate propylene, 1-butylene, 1-amylene, 1-hexene, 4-methyl-1-pentene, 3-Methyl-1-pentene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-undecylene, 1-dodecylene, 1-tridecylene, tetradecene, 1-15 carbenes, cetene, 1-heptadecene, 1-vaccenic acid, 1-19 carbenes, 1-eicosylene or the like particularly.

[0505] preparation method for the multipolymer of ethene and alpha-olefin does not have particular restriction.For example, except the thermal response that can use catalyst-free prepares, can also ethene and alpha-olefin copolymer be obtained by using the catalyzer of regulation.As catalyzer, can enumerate organic peroxide catalyst such as benzoyl peroxide; Knut Fridell-Kerafyrm thatch type catalyzer such as aluminum chloride, aluminum chloride-polyalcohols, aluminum chloride-titanium tetrachloride class, aluminum chloride-alkyl tin halide class, boron fluoride; Organic chloride aluminium-titanium tetrachloride class, organoaluminum-Ziegler-type catalysts such as titanium tetrachloride class; Organoaluminum-vanadium class catalyzer such as oxygen base vanadium trichloride class; Aikyiaiurnirsoxan beta-zirconocene class or ionic compound-metallocene-type catalysts such as zirconocene class; Lewis acid such as aluminum chloride-bases or boron fluoride-bases composite catalyst etc.

[0506] when the heat-treatment oil composition of the present embodiment contains the multipolymer of ethene and alpha-olefin, ethylene content in this multipolymer does not have particular restriction, consider from the viewpoint of the oxidation stability of the heat-treatment oil composition of final acquisition, hardenability, photoluminescent (light), the unitary content of ethene composition in the multipolymer, with the multipolymer total amount is benchmark, be preferably 40～80 quality %, more preferably 45～70 quality %, more preferably 50～60 quality %.

[0507] in addition, (A-1) hydride of composition is that two keys by said polyolefins are formed by hydrogenation.This hydride is compared with hydrogenation thing not, and thermal oxidation stability is better.

[0508] polyolefinic hydride can adopt arbitrary method to obtain, for example by in the presence of known hydrogenation catalyst with hydrogen to the polyolefine hydrogenation, make saturated acquisition of two keys that exists in the polyolefine.In addition, by suitable selective polymerization catalyzer, also preparation of polyolefins and hydrogenation to two keys of existing in the polyolefine can be carried out in same section operation.Illustrated, at present, use or lubricating oil additive usefulness as lubricant base that with the commercially available commodity of the trade(brand)name of ethylene-propylene copolymer, its pair key is by hydrogenation usually, they can be preferably used as cooling property improving agent.

[0509] (A-1) molecular weight of polyolefine and/or its hydride does not have particular restriction, considers that from decomposing the good viewpoint of stability its number-average molecular weight is preferably 1200～4000, and more preferably 1500～3000.Illustrated, when number-average molecular weight less than 1200 the time, the hardenability of the heat-treated oil inadequate tendency that becomes, in addition, if number-average molecular weight surpasses 4000, the thermal oxidation stability of the heat-treatment oil composition inadequate tendency that becomes then.

[0510] as the pitch of (A-2) composition, can enumerate petroleum-type pitch or rock asphalt etc.

[0511] in addition, (A-2) the insoluble composition of composition is removed thing and is meant that employing solvent extraction process etc. is removed the product that in the above-mentioned pitch the low composition of the solvability of mineral oil is obtained.

[0512] removes thing as (A-2) pitch and/or its insoluble composition, recording its penetration degree (25 ℃) according to 6.3 " the penetration test methods " of JIS K 2207 " petroleum pitch " is 0～300, recording its softening temperature according to 6.4 " softening point test methods " is 30～150 ℃, and density (15 ℃) is 1.0g/cm ³More than.

Illustrated that [0513] above-mentioned (A-2) be not though the interpolation of composition can damage the performance of heat-treatment oil composition, and be painted owing to being attended by, therefore,, do not wished to use (A-2) composition in the occasion of the heat-treated oil of wishing transparent type.

[0514] as the salicylic alkali earth metal salt of (A-3) composition, various salt can be used,, salicylate compound can be enumerated by following general formula (52) expression as preferred salt.

[0515] [changes 52]

[in the formula, R ¹²³The alkyl of expression carbon number 8～20; N represents 1～4 integer; M represents calcium atom, barium atom or magnesium atom].

[0516] in the above-mentioned general formula (52), as by R ¹²³The alkyl of the carbon number 8～20 of expression can be enumerated the octyl group of straight or branched, the nonyl of straight or branched, the decyl of straight or branched, the undecyl of straight or branched, the dodecyl of straight or branched, the tridecyl of straight or branched, the tetradecyl of straight or branched, the pentadecyl of straight or branched, the hexadecyl of straight or branched, the heptadecyl of straight or branched, the octadecyl of straight or branched, the nonadecyl of straight or branched, the eicosyl of straight or branched etc. particularly.

[0517] in addition, the M in the above-mentioned general formula (52) represents calcium atom, barium atom or magnesium atom, in the present embodiment, preferably uses salicylic calcium salt or magnesium salts.

[0518] (A-3) base number of salicylic alkali earth metal salt (TBN) does not have particular restriction, and 500mgKOH/g is following, the salt of preferred 100～400mgKOH/g if use, and then the raising to the photoluminescent (light) of workpiece is effective.

[0519] (A-3) salicylic alkali earth metal salt can use a kind separately, also arbitrary combination more than 2 kinds can be used.

[0520] in the present embodiment, in above-mentioned (A-1)～(A-3) composition, preferably will remove select thing and the alkyl salicylate alkali earth metal salt at least a kind and use as cooling property improving agent from multipolymer, pitch and the insoluble composition thereof of the alpha-olefin of ethene and carbon number 3～20.

[0521] content of cooling property improving agent can at random be selected in the heat-treatment oil composition of the present embodiment, consider from the viewpoint of the raising effect of hardenability, with the total composition is benchmark, be preferably more than the 0.01 quality %, more preferably more than the 0.05 quality %, more preferably more than the 0.1 quality %.In addition, from the viewpoint consideration of the raising effect of acquisition and the corresponding hardenability of content effectively, the content of cooling property improving agent, with the total composition is benchmark, be preferably below the 20 quality %, more preferably below the 10 quality %, more preferably below the 7.0 quality %.

[0522] heat-treatment oil composition of the present embodiment can only contain above-mentioned lubricant base and cooling property improving agent, but in order further to improve its performance, can contain following various additives as required.

[0523] as the additive beyond the cooling improving agent that uses in the present embodiment, for example can enumerate photoluminescent modifying agents such as lipid acid such as sulphur compound, oleic acid, cottonseed oil fatty acid, fatty acid ester, terpine resin such as sulfide-based, disulfides, multiple sulfides, thio-alcohol, thiophene-based; Antioxidants such as amine compound such as phenolic compound such as 2,6 ditertiary butyl p cresol, pentanoic, phenyl-a-naphthylamine; Alkaline-earth metal sulfonate, alkaline-earth metal phenates, alkaline-earth metal salicylate, tensio-active agent such as sorbitan ester, poly (oxyalkylene) based compound, alkenyl succinimide etc.These content of additive can at random be selected, and are benchmark with the total composition, and the total content of the additive beyond the cooling property improving agent is preferably 0.01～20 quality %.

[0524] has the heat-treatment oil composition of the present embodiment of above-mentioned formation, the heat-treated oil that can be used as the metal works that can obtain to have enough hardness really and should tail off, can be preferably used as to various steel alloys such as carbon steel, nickel-manganese steel, chrome-molybdenum steel, manganese steel quench, heat-treated oil during thermal treatment such as annealing, tempering, when preferably quenching.Especially, the heat-treatment oil composition of the present embodiment in the thermal treatments such as the gas cementation quenching of the precision optical machinery parts in all-round (carburizing, quenching) stove, continuous oven etc. or the parts of complicated shape, non-oxidation quenching, can have been given play to good performance.

[0525] (the 6th embodiment; The work mechanism lubricating oil composition)

The work mechanism of the 6th embodiment of the present invention contains the lubricant base of the invention described above and contains phosphorus and/or sulphur as the compound that constitutes element with lubricating oil composition.

Illustrated that [0526] use in the lubricating oil composition at the work mechanism of the present embodiment, the form of lubricant base of the present invention is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0527] in addition, use in the lubricating oil composition, can use the lubricant base of the invention described above separately at the work mechanism of the present embodiment, in addition, also can also using more than a kind or 2 kinds with lubricant base of the present invention and other base oils.Illustrated, the concrete example of other base oils and lubricant base of the present invention shared ratio in mixed base oil, identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0528] in addition, the work mechanism of the present embodiment with contained phosphorus and/or the sulphur of containing in the lubricating oil composition as the compound that constitutes element, identical with the situation of above-mentioned the 3rd embodiment, therefore, in this no longer repeat specification.

[0529] work mechanism of the present embodiment can only contain lubricant base of the present invention and contain phosphorus and/or sulphur as the compound that constitutes element with lubricating oil composition, but in order further to improve its characteristic, can also contain following additive.

[0530] the work mechanism lubricating oil composition of the present embodiment is considered from the viewpoint of sludge inhibition, can also contain the decentralized viscosity index improver.Decentralized viscosity index improver in the present embodiment, identical with decentralized viscosity index improver in above-mentioned the 3rd embodiment, therefore, in this no longer repeat specification.

[0531] in addition, the work mechanism lubricating oil composition of the present embodiment, consider from the viewpoint that can further improve rubbing characteristics, preferably contain at least a kind that from compound shown in the explanation of above-mentioned the 3rd embodiment,, selects, perhaps more preferably also contain compound by general formula (33) expression by general formula (30)～(32) expression.

[0532] in addition, the work mechanism lubricating oil composition of the present embodiment is considered from the viewpoint of sludge inhibition, can contain epoxy compounds.The concrete example of the epoxy compounds in the present embodiment and preference, identical with the situation of epoxy compounds in above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0533] when the work mechanism of the present embodiment contained epoxy compounds with lubricating oil composition, its content did not have particular restriction, was benchmark with the total composition, was preferably 0.1～5.0 quality %, more preferably 0.2～2.0 quality %.

[0534] in addition, the work mechanism lubricating oil composition of the present embodiment is considered from the viewpoint that can further improve oxidation stability, can contain phenol antioxidant, amine antioxidants or these two.Phenol antioxidant in the present embodiment and amine antioxidants, identical with phenol antioxidant and amine antioxidants in above-mentioned the 2nd embodiment, therefore, in this no longer repeat specification.

[0535] in addition, the work mechanism lubricating oil composition of the present embodiment is considered from the viewpoint that improves rubbing characteristics, can contain oiliness improver.Oiliness improver in the present embodiment is identical with oiliness improver in above-mentioned the 3rd embodiment, therefore, and in this no longer repeat specification.

[0536] in addition, the work mechanism lubricating oil composition of the present embodiment, consider from the viewpoint that improves thermal oxidation stability, can contain at triazole and/or its derivative shown in the explanation of above-mentioned the 3rd embodiment, that have the structure of representing by formula (45).

[0537] in addition, the work mechanism lubricating oil composition of the present embodiment, in order further to improve its performance, also can be as required, individually or several contain the viscosity index improver beyond rust-preventive agent, metal passivator, the above-mentioned decentralized viscosity index improver in combination or be the various additives of representative with detergent-dispersant additive, pour point reducer, defoamer etc.These additives are identical with the situation of above-mentioned the 3rd embodiment, therefore, and in this no longer repeat specification.

[0538] has the work mechanism lubricating oil composition of the present embodiment of above-mentioned formation, can realize the over-all properties of rubbing characteristics, stick-slip reduction property and thermal oxidation stability with high level and balance well, be very useful aspect the high performance of work mechanism.

[0539] the work mechanism lubricating oil composition of the present embodiment is particularly preferred for slide guide rail lubricated of work mechanism, in addition, also is preferred for various bearings, gear, hydraulic efficiency system etc. lubricated of work mechanism.

[0540] (the 7th embodiment; Lubricating oil composition)

The lubricating oil composition of the 7th embodiment of the present invention contains the lubricant base of the invention described above and contains phosphorus and/or sulphur as the compound that constitutes element.

Illustrated that [0541] in the lubricating oil composition of the present embodiment, the form of lubricant base of the present invention is identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0542] in addition, in the lubricating oil composition of the present embodiment, can use the lubricant base of the invention described above separately, in addition, also can also using more than a kind or 2 kinds with lubricant base of the present invention and other base oils.Illustrated, the concrete example of other base oils and lubricant base of the present invention shared ratio in mixed base oil, identical with the situation of above-mentioned the 1st embodiment, therefore, in this no longer repeat specification.

[0543] in addition, the lubricating oil composition of the present embodiment contain (A) not sulfur-bearing be antioxidant as constituting the ashless of element.As this (A) composition, preferred not sulfur-bearing is an antioxidant as the phenols or the ashless of amine that constitute element.

[0544] as sulfur-bearing not as the ashless antioxidant of phenols that constitutes element, for example can enumerate particularly, 4,4 '-methylene-bis (2, the 6-DI-tert-butylphenol compounds), 4,4 '-two (2, the 6-DI-tert-butylphenol compounds), 4,4 '-two (2-methyl-6-tert butyl phenol), 2,2 '-methylene-bis(4-ethyl-6-t-butyl phenol), 2,2 '-methylene-bis (4-methyl-6-tert butyl phenol), 4,4 '-butylidene-bis(3-methyl-6-t-butyl phenol), 4,4 '-isopropylidene two (2, the 6-DI-tert-butylphenol compounds), 2,2 '-methylene-bis(4-methyl-6-nonyl phenol), 2,2 '-isobutylidene two (4, the 6-xylenol), 2,2 '-methylene-bis(4-methyl-6-cyclohexyl phenol), 2, the 6-di-tert-butyl-4-methy phenol, 2,6-di-t-butyl-4-ethylphenol, 2,4-dimethyl-6-tert.-butyl phenol, 2, the amino p-cresol of 6-two-uncle-alpha, alpha-dimethyl, 2,6-di-t-butyl-4-(N, N '-dimethylaminomethylphenol), 3-(3,5-di-t-butyl-4-hydroxyphenyl) n-octyl propionate, 3-(3,5-di-t-butyl-4-hydroxyphenyl) propionic acid tridecyl ester, four [3-(3,5-di-t-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester, 3-(3,5-di-t-butyl-4-hydroxyphenyl) propionic acid stearyl, 3-(3,5-di-t-butyl-4-hydroxyphenyl) n-octyl propionate, 3-(the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) n-octyl propionate, and their mixture etc.Wherein, preferably (3-(3 for the ester class antioxidant of the hydroxyphenyl replacement of the ester that forms of the alcohol of the lipid acid that replaces as hydroxyphenyl and carbon number 4～12,5-di-t-butyl-4-hydroxyphenyl) n-octyl propionate, 3-(the 3-methyl-5-tertiary butyl-4-hydroxyphenyl) n-octyl propionate etc.) and bisphenols antioxidant, more preferably the ester class antioxidant of hydroxyphenyl replacement.In addition, molecular weight is the phenolic compound more than 240, and its decomposition temperature height even under pyritous condition more, also can give play to its effect, is preferred therefore.

[0545] in addition, as sulfur-bearing not as the ashless antioxidant of amine that constitutes element, preferred amine antioxidants and phenol antioxidant, more preferably amine antioxidants.Illustrated, amine antioxidants in the present embodiment and phenol antioxidant, identical with amine antioxidants and phenol antioxidant in above-mentioned the 2nd embodiment, therefore, in this no longer repeat specification.

[0546] sulfur-bearing is not the content of antioxidant as constituting the ashless of element, is benchmark with the total composition, is 0.3～5 quality %, is preferably 0.3～3 quality %, more preferably 0.4～2 quality %.When this is ashless is the content of antioxidant during less than 0.3 quality %, thermal oxidation stability and the sludge inhibition inadequate tendency that becomes.On the other hand, when surpassing 5 quality %, can not get the effect with corresponding thermal oxidation stability of content and sludge inhibition, unfavorable economically, therefore not preferred.

[0547] lubricating oil composition of the present embodiment can only contain above-mentioned lubricant base and ashless be antioxidant, consider from the viewpoint that can further improve thermal oxidation stability and sludge inhibition, preferably also contain the aromatic hydroxy compound that alkyl replaces.

[0548] in the present embodiment, the aromatic hydroxy compound as alkyl replaces preferably uses at least a kind that selects from alkylbenzene, alkylnaphthalene, alkyl biphenyl and alkyl diphenyl base paraffinic hydrocarbons.

[0549] as alkyl that alkylbenzene had, for example can enumerate methyl particularly, ethyl, propyl group, butyl, amyl group, hexyl, heptyl, octyl group, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, ceryl, heptacosyl, octacosyl, nonacosyl, triacontyl, hentriacontyl, dotriacontyl, tritriacontyl, the tetratriacontane base, the pentatriacontane base, the hexatriacontane base, the heptatriacontane base, three octadecyls, the nonatriacontane base, carbon numbers such as tetracontyl are 1～40 alkyl.Illustrated, comprised whole isomer in these groups separately.Wherein, the preferred use has 1～4 (more preferably 1～2) alkyl of carbon number 8～30 and the total carbon number of these alkyl be 10～50 alkylbenzene of (more preferably 20～40).

[0550] alkyl that alkylbenzene had can be the straight chain shape, it also can be a chain, consider from viewpoints such as stability, viscosity characteristicses, preferred branched-chain alkyl, especially, consider from the viewpoint of availability, more preferably by the oligopolymer deutero-branched-chain alkyl of alkene such as propylene, butylene, iso-butylene.

[0551] number of the alkyl in the alkylbenzene is preferably 1～4, considers from the viewpoint of stability, availability, most preferably uses the alkylbenzene with 1 or 2 alkyl, i.e. monoalkylated benzenes, dialkyl benzene or their mixture.

[0552] above-mentioned alkylbenzene can use a kind separately, also can use with the mixture more than 2 kinds.When using the mixture of the alkylbenzene more than 2 kinds, the molecular-weight average of this mixture is preferably 200～500.

[0553] preparation method of alkylbenzene can be arbitrarily, without any qualification, generally can prepare according to following synthesis method.Aromatic hydroxy compound as constituting raw material for example can use benzene,toluene,xylene, ethylbenzene, methyl-ethyl benzene, diethylbenzene and their mixture etc. particularly.In addition,, for example can use rudimentary monoolefines such as ethene, propylene, butylene, iso-butylene, the preferably alkene of the straight or branched of the carbon number 6～40 that obtains by propylene polymerization particularly as alkylating agent; The alkene of the straight or branched of the carbon number 6～40 that the thermo-cracking by wax, mink cell focus, petroleum fractions, polyethylene, polypropylene etc. obtains; From petroleum fractionss such as kerosene, diesel oil, isolate normal paraffin, again the straight chain shape alkene of the carbon number 6～40 that its alkeneization is obtained with catalyzer; And their mixture etc.

[0554] in addition, the alkylation catalyst during as alkylation can use Knut Fridell-Kerafyrm thatch type catalyzer such as aluminum chloride, zinc chloride; An acidic catalysts such as sulfuric acid, phosphoric acid, silicotungstic acid, hydrofluoric acid, atlapulgite; Etc. known catalyzer.

[0555] as alkylnaphthalene, the preferred compound that uses by following general formula (53) expression.

[changing 53]

[in the formula (53), R ¹²⁴, R ¹²⁵, R ¹²⁶And R ¹²⁷Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～40 separately; R ¹²⁴, R ¹²⁵, R ¹²⁶Perhaps R ¹²⁷In at least 1 be alkyl].

[0556] R in the general formula (53) ¹²⁴, R ¹²⁵, R ¹²⁶And R ¹²⁷Represent hydrogen atom or alkyl separately, in this alkyl, except alkyl, also contain thiazolinyl, aryl, alkylaryl, arylalkyl etc., preferred R ¹²⁴, R ¹²⁵, R ¹²⁶And R ¹²⁷It all is alkyl.

[0557], can enumerate the alkyl that in the explanation of abovementioned alkyl benzene, has and illustrative alkyl as alkylbenzene as alkyl.Wherein, the alkyl of preferred carbon number 8～30, the more preferably alkyl of carbon number 10～20.

[0558] in addition, in the alkylnaphthalene of general formula (53) expression, R ¹²⁴, R ¹²⁵, R ¹²⁶And R ¹²⁷Can be identical or different.That is R, ¹²⁴, R ¹²⁵, R ¹²⁶And R ¹²⁷Can be all to contain alkyl, also can be R ¹²⁴, R ¹²⁵, R ¹²⁶Perhaps R ¹²⁷In at least 1 be alkyl, other are hydrogen atom.R ¹²⁴, R ¹²⁵, R ¹²⁶And R ¹²⁷The total carbon number be preferably 8～50, more preferably 10～40.

[0559] works as R ¹²⁴, R ¹²⁶, R ¹²⁶And R ¹²⁷In be alkyl more than 2 the time, as long as wherein at least 1 be an alkyl, its combination just can be arbitrarily, but preferred all be alkyl.In addition, can be R ¹²⁴And R ¹²⁵For alkyl such, in same phenyl ring the structure of 2 alkyl of bonding, also can be R ¹²⁴And R ¹²⁶Be alkyl structure such, that on different phenyl ring, distinguish 1 alkyl of each bonding.

[0560] as the alkylnaphthalene of general formula (53) expression, can enumerate the decyl naphthalene particularly, the undecyl naphthalene, the dodecyl naphthalene, the tridecyl naphthalene, the tetradecyl naphthalene, the pentadecyl naphthalene, the hexadecyl naphthalene, the heptadecyl naphthalene, the octadecyl naphthalene, the nonadecyl naphthalene, the eicosyl naphthalene, two (decyl) naphthalene, two (undecyl) naphthalene, two (dodecyl) naphthalene, two (tridecyl) naphthalene, two (tetradecyl) naphthalene, two (pentadecyl) naphthalene, two (hexadecyl) naphthalene, two (heptadecyl) naphthalene, two (octadecyl) naphthalene, two (nonadecyl) naphthalene, two (eicosyl) naphthalene etc.Illustrated, comprised whole isomer in these compounds separately.

[0561] wherein, preferably have the alkylnaphthalene of the alkyl of 1～4 (more preferably 1～2) carbon number 8～30 (more preferably 10～20), more preferably, the total carbon number of the alkyl that alkylnaphthalene had is 8～50 (more preferably 10～40).

[0562] above-mentioned alkylnaphthalene can use a kind separately, also can use with the mixture more than 2 kinds.When using the mixture of the alkylnaphthalene more than 2 kinds, the molecular-weight average of this mixture is preferably 200～500.

[0563] preparation method of alkylnaphthalene can be arbitrarily, can adopt various known method to prepare.As its example, for example can enumerate, solid acid materials such as mineral acids such as sulfuric acid, phosphoric acid, silicotungstic acid, hydrofluoric acid, acidic white earth, atlapulgite and aluminum chloride, zinc chloride etc. as the acid catalyst of friedel-crafts catalysts of metal halide etc. in the presence of, the halogenide of hydrocarbon, olefines, styrenic etc. are added to method on the naphthalene etc.

[0564] as alkyl biphenyl, the preferred compound that uses by following general formula (54) expression.

[changing 54]

[in the formula (54), R ¹²⁸, R ¹²⁹, R ¹³⁰And R ¹³¹Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～40 respectively; R ¹²⁸, R ¹²⁹, R ¹³⁰Perhaps R ¹³¹In at least 1 be alkyl].

[0565] as the R in the general formula (54) ¹²⁸, R ¹²⁹, R ¹³⁰And R ¹³¹The alkyl of expression except alkyl, can be enumerated thiazolinyl, aryl, alkaryl, aralkyl etc., preferred R ¹²⁸, R ¹²⁹, R ¹³⁰And R ¹³¹It all is alkyl.

[0566], can enumerate in the explanation of abovementioned alkyl benzene, as the illustrated alkyl of the alkyl that alkylbenzene had as alkyl.Wherein, the alkyl of preferred carbon number 8～30, the more preferably alkyl of carbon number 10～20.

[0567] in addition, in alkyl biphenyl by general formula (54) expression, R ¹²⁸, R ¹²⁹, R ¹³⁰And R ¹³¹Can be identical or different.That is R, ¹²⁸, R ¹²⁹, R ¹³⁰And R ¹³¹Can all be alkyl, perhaps also can be R ¹²⁸, R ¹²⁹, R ¹³⁰Perhaps R ¹³¹In at least 1 be alkyl, other are hydrogen atom or are the alkyl beyond the alkyl.R ¹²⁸, R ¹²⁹, R ¹³⁰And R ¹³¹The total carbon number be preferably 8～50, more preferably 10～40.

[0568] works as R ¹²⁸, R ¹²⁹, R ¹³⁰And R ¹³¹In be alkyl more than 2 the time, as long as wherein at least 1 is an alkyl, its combination just can be arbitrarily, can be R ¹²⁸And R ¹²⁹For alkyl such, on same phenyl ring the structure of 2 alkyl of bonding, also can be R ¹²⁹And R ¹³⁰Be alkyl structure such, that on different phenyl ring, distinguish 1 alkyl of each bonding.

[0569] above-mentioned alkyl biphenyl can use a kind separately, also can use with the mixture more than 2 kinds.When using the mixture of the alkyl biphenyl more than 2 kinds, the molecular-weight average of this mixture is preferably 200～500.

[0570] preparation method of alkyl biphenyl can be arbitrarily, can adopt various known method to prepare.As its example, for example can enumerate, solid acid materials such as mineral acids such as sulfuric acid, phosphoric acid, silicotungstic acid, hydrofluoric acid, acidic white earth, atlapulgite and aluminum chloride, zinc chloride etc. as the acid catalyst of friedel-crafts catalysts of metal halide etc. in the presence of, the halogenide of hydrocarbon, olefines, styrenic etc. are added to method on the biphenyl etc.

[0571] as alkyl diphenyl base paraffinic hydrocarbons, the preferred compound that uses by following general formula (55) expression.

[0572] [changes 55]

[in the formula (55), R ¹³², R ¹³³, R ¹³⁴And R ¹³⁵Can be identical or different, represent the alkyl of hydrogen atom or carbon number 1～40 separately; R ¹³⁰, R ¹³¹, R ¹³²Perhaps R ¹³³In at least 1 be alkyl; R ¹³⁶The alkylidene group or the alkenylene of expression carbon number 1～8].

[0573] as the R in the general formula (55) ¹³², R ¹³², R ¹³⁴And R ¹³⁵The alkyl of expression except alkyl, can be enumerated thiazolinyl, aryl, alkaryl, aralkyl etc., preferred R ¹³², R ¹³³, R ¹³⁴And R ¹³⁵It all is alkyl.

[0574], can enumerate in the explanation of abovementioned alkyl benzene, as the illustrated alkyl of the alkyl that alkylbenzene had as alkyl.Wherein, the alkyl of preferred carbon number 8～30, the more preferably alkyl of carbon number 10～20.

[0575] in addition, in phenylbenzene paraffinic hydrocarbons by general formula (55) expression, R ¹³², R ¹³³, R ¹³⁴And R ¹³⁵Can be identical or different.That is R, ¹³², R ¹³³, R ¹³⁴And R ¹³⁵Can all be alkyl, perhaps also can be R ¹³², R ¹³³, R ¹³⁴Perhaps R ¹³⁵In at least 1 be alkyl, other are the alkyl beyond hydrogen atom or the alkyl.R ¹³², R ¹³³, R ¹³⁴And R ¹³⁵The total carbon number be preferably 8～50, more preferably 10～40.

[0576] works as R ¹³², R ¹³³, R ¹³⁴And R ¹³⁵In when being alkyl more than 2, as long as wherein at least 1 is an alkyl, its combination just can be arbitrarily, can be R ¹³²And R ¹³³For alkyl such, on same phenyl ring the structure of 2 alkyl of bonding, also can be R ¹³²And R ¹³⁴Be alkyl structure such, that on different phenyl ring, distinguish 1 alkyl of each bonding.

[0577] in addition, the R in the general formula (55) ¹³⁶Expression alkylidene group or alkenylene.

[0578] as R ¹³⁶, the alkylidene group or the alkenylene of preferred carbon number 1～8, the more preferably alkylidene group of carbon number 1～6 and alkenylene.As particularly preferred group, can enumerate carbon numbers such as methylene radical, methyl methylene radical (ethylidene), ethylidene, ethyl methylene radical (propylidene), dimethylated methylene base (isopropylidene), methyl ethylidene (propylidene), trimethylene and be 1～3 alkylidene group; 1, carbon numbers such as 1-vinylidene, vinylene, propenylene, methylene radical ethylidene, methyl vinylidene, 1-propenylidene, 2-propenylidene are 2～3 alkenylene; In the alkylidene group of carbon number 4～6,1-methyl trimethylene, 1-ethyl trimethylene, 1,1-dimethyl trimethylene, 1,2-dimethyl trimethylene, 1,3-dimethyl trimethylene, 1-ethyl-3-methyl trimethylene, 1-ethyl-2-methyl trimethylene, 1,1,2-trimethylammonium trimethylene, 1,1,3-trimethylammonium trimethylene; And in the alkenylene of carbon number 4～6,3-methyl propenylidene, 1-methyl-3-methylene tri methylene radical, 3-ethyl propenylidene, 1,3-dimethyl propenylidene, 2,3-dimethyl propenylidene, 3,3-dimethyl propenylidene, 1,1-dimethyl-3-methylene tri methylene radical, 1-ethyl-3-methylene tri methylene radical, 3-ethyl-1-methyl propenylidene, 3-ethyl-2-methyl propenylidene, 1,3,3-trimethylammonium propenylidene, 2,3,3-trimethylammonium propenylidene; Deng.

[0579] above-mentioned phenylbenzene paraffinic hydrocarbons can use a kind separately, also can use with the mixture more than 2 kinds.When using the mixture of the phenylbenzene paraffinic hydrocarbons more than 2 kinds, the molecular-weight average of this mixture is preferably 200～500.

[0580] preparation method of phenylbenzene paraffinic hydrocarbons can be arbitrarily, can adopt various known method to prepare, and can enumerate following several examples.

[0581] for example, by in the presence of acid catalyst, with vinylbenzene, α-, styrenics such as Beta-methyl vinylbenzene, ethyl styrene add on the alkylbenzene, can obtain the phenylbenzene paraffinic hydrocarbons.As acid catalyst, can use solid acid materials such as mineral acids such as sulfuric acid, phosphoric acid, acidic white earth, atlapulgite and as friedel-crafts catalysts of metal halide etc.

[0582] in addition, alkyl diphenyl base paraffinic hydrocarbons also can be in the presence of suitable acid catalyst, and the polyreaction by above-mentioned styrenic prepares.At this moment, can use single distyryl compound, also can use the distyryl compound more than 2 kinds to carry out copolymerization.As acid catalyst, can use solid acid materials such as mineral acids such as sulfuric acid, phosphoric acid, acidic white earth, atlapulgite and as friedel-crafts catalysts of metal halide etc.Usually, the hydrocarbon compound that adopts this method to obtain is 2 compounds that phenyl ring is bonded together by alkenylene, in the present embodiment, can directly use, and, also can use hydrotreatment to make alkenylene be transformed into the compound that alkylidene group forms by in the presence of suitable catalyzer, carrying out alkenylene.

[0583] in addition, about the alkylation of aromatic hydroxy compound, muriatic Knut Fridell-Kerafyrm thatch reaction is well-known, and the phenylbenzene paraffinic hydrocarbons also can adopt this method to prepare.For example, in the presence of suitable friedel-crafts catalysts such as metal halide,, can obtain the hydrocarbon compound of the present embodiment by alkylbenzene and benzene or the alkylbenzene reaction that the side chain alkyl is chlorinated.In addition, also can enumerate in the presence of suitable friedel-crafts catalysts such as metal halide, make dihalo paraffinic hydrocarbons and benzene or alkylbenzene carry out the method for coupling.

[0584] alkyl diphenyl base paraffinic hydrocarbons can have by R by use ¹³²～R ¹³⁵The alkylbenzene of the alkyl of expression adopts above-mentioned method to wait and prepares, also can be by adopting the whole bag of tricks with R ¹³²～R ¹³⁵The alkyl of expression adds on the phenylbenzene paraffinic hydrocarbons that adopts preparations such as aforesaid method and prepares.

[0585] in the present embodiment, as aromatic hydroxy compound, can use a kind in above-mentioned alkylbenzene, alkylnaphthalene, alkyl biphenyl and the alkyl diphenyl base paraffinic hydrocarbons separately with alkyl, also it can be used in combination more than 2 kinds.Wherein, consider special preferred alkyl benzene or alkylnaphthalene, most preferably alkylnaphthalene from the viewpoint that the raising effect of sludge inhibition is better.

[0586] viscosity of the aromatic hydroxy compound that replaces for the alkyl that uses in the present embodiment does not have particular determination, and its kinematic viscosity in the time of 40 ℃ is preferably 10～100mm ²/ s, more preferably 20～80mm ²/ s, more preferably 25～60mm ²/ s.

[0587] when the lubricating oil composition of the present embodiment contains the aromatic hydroxy compound of alkyl replacement, the content of the aromatic hydroxy compound that this alkyl replaces, consider from the viewpoint of thermal oxidation stability and sludge inhibition, with the total composition is benchmark, be preferably more than the 2 quality %, more preferably more than the 5 quality %, more preferably more than the 10 quality %.In addition, consider the content of the aromatic hydroxy compound that alkyl replaces from the viewpoint of viscosity-temperature profile, with the total composition is benchmark, is preferably below the 50 quality %, more preferably below the 30 quality %, more preferably below the 20 quality %, be preferably especially below the 15 quality %.

[0588] in addition, the lubricating oil composition of the present embodiment in order further to improve its various performances, can also further contain known other lubricating oil additives, for example, and rust-preventive agent, anticorrosive agent, pour point reducer, defoamer etc.These additives can use a kind separately, also can will be used in combination more than 2 kinds.These additives in the present embodiment, identical with the situation of above-mentioned the 2nd embodiment, therefore, in this no longer repeat specification.

[0589] having the lubricating oil composition of the present embodiment of above-mentioned formation, can realize thermal oxidation stability and sludge inhibition well with high level and balance, is very useful as the lubricating oil composition of high-temperature use.Herein, about high-temperature use, there is not particular restriction for use temperature, when the oily temperature of the fuel tank that recycles continues can bring into play above-mentioned effect of the present invention more than 60 ℃ the time high-levelly, therefore be preferred, and then, when this temperature can have been given play to better effect in time more than 80 ℃, be preferred therefore, can give play to further good effect when this temperature in time more than 100 ℃, be particularly preferred therefore.As this high-temperature use, the burning of gas gas that can enumerate large capacity turbine, uses LNG or system iron institute by-product is as the internal combustion turbine of working medium, various rotary gas compressor, the construction implement of at high temperature working etc., but the purposes of lubricating oil composition of the present invention is not limited to these purposes.

Embodiment

[0590] following based on embodiment and comparative example, be described more specifically the present invention, but the present invention is not subjected to any qualification of following examples.

[0591] [preparation of lubricant base]

(base oil 1～3)

After will in the refining step of solvent treatment base oil, adopting the isolated cut of underpressure distillation to carry out solvent extraction, carry out hydrotreatment, then, carry out solvent dewaxing with butanone-toluene mixed solvent with furfural.The wax composition (hereinafter referred to as " WAX1 ") that will be removed when this solvent dewaxing is as the raw material of lubricant base.The proterties of WAX1 is shown in table 1.

[0592] [table 1]

The title of paraffin	WAX1
		Kinematic viscosity (mm in the time of 100 ℃ 2/s)	6.6
Fusing point (℃)	60
		Oil-contg (quality %)	6.1
Sulphur content (quality ppm)	880

[0593] secondly, in the presence of hydrocracking catalyst, at hydrogen dividing potential drop 5MPa, 340 ℃ of average reaction temperature, LHSV 0.8hr ^-1Condition under, WAX1 is carried out hydrocracking.As hydrocracking catalyst, will use with sulfided state at the amorphous catalyzer that is nickel-loaded and molybdenum form on the silica alumina carrier.

[0594] secondly, carries out underpressure distillation, obtain to be equivalent to the lubricating oil distillate of stock oil 20 volume % by the split product that above-mentioned hydrocracking is obtained.For this lubricating oil distillate, use butanone-toluene mixed solvent, in solvent/oil ratio is that 2 times, filtration temperature carry out solvent dewaxing under-30 ℃ the condition, obtains the different 3 kinds of lubricant bases (hereinafter referred to as " base oil 1 ", " base oil 2 " and " base oil 3 ") of viscosity grade.

[0595] (base oil 4～6)

With zeolite 700g and alumina adhesive 300g mixed milling (kneading), be shaped to the cylindric of 1/16 inch of diameter (about 1.6mm), high 8mm.The formed body that obtains 480 ℃ of following roastings 2 hours, is obtained carrier.Making by the platinum scaled value is that the aqueous solution of dichloro four ammino platinum (II) of amount of 1.0 quality % of carrier is impregnated in this carrier, make its 125 ℃ dry 2 hours down, 380 ℃ of following roastings 1 hour, obtain the purpose catalyzer.

[0596] secondly, the catalyzer that obtains is filled in the fixed bed flow through reactors, uses this reactor, the stock oil that contains the paraffinic hydrocarbon is carried out hydrocracking/hydroisomerization.In this operation, the FT wax (hereinafter referred to as " WAX2 ") that as stock oil, to use paraffinicity be 95 quality %, have 20～80 carbon number distribution.The proterties of WAX2 is shown in table 2.In addition, the condition of hydrocracking is hydrogen pressure 3.SMPa, 340 ℃ of temperature of reaction, LHSV 1.5h ^-1, obtain the cracking that the cut (split product) of boiling point below 370 ℃ is the 25 quality % (cleavage rate 25%) of raw material/isomerization and generate oil.

[0597] [table 2]

The title of paraffin	WAX2
		Kinematic viscosity (mm in the time of 100 ℃ 2/s)	5.9
Fusing point (℃)	69
		Oil-contg (quality %)	<1
Sulphur content (quality ppm)	<0.2

[0598] secondly, generates oily underpressure distillation, obtain lubricating oil distillate by the cracking/isomerization that will obtain in above-mentioned hydrocracking/hydroisomerization operation.To this lubricating oil distillate, use butanone-toluene mixed solvent, in solvent/oil ratio is that 3 times, filtration temperature carry out solvent dewaxing under-30 ℃ the condition, obtains 3 kinds of different lubricant bases of viscosity grade (hereinafter referred to as " base oil 4 ", " base oil 5 " and " base oil 6 ".)。

[0599] (base oil 7～9)

After will in the refining step of solvent treatment base oil, adopting the isolated cut of underpressure distillation to carry out solvent extraction, carry out hydrotreatment, then, carry out solvent dewaxing with butanone-toluene mixed solvent with furfural.The soft wax (gatch) that will when this solvent dewaxing, be removed further de-oiling and the wax composition (hereinafter referred to as " WAX3 ") that obtains as the raw material of lubricant base.The proterties of WAX3 is shown in table 3.

[0600] [table 3]

The title of paraffin	WAX3
		Kinematic viscosity (mm in the time of 100 ℃ 2/s)	6.5
Fusing point (℃)	51
		Oil-contg (quality %)	19.5
Sulphur content (quality ppm)	2000

[0601] secondly, in the presence of hydrocracking catalyst, at hydrogen dividing potential drop 5.5MPa, 340 ℃ of average reaction temperature, LHSV 0.8hr ^-1Condition under, WAX3 is carried out hydrocracking.As hydrocracking catalyst, with sulfided state use amorphous be the catalyzer that nickel-loaded and molybdenum form on the silica alumina carrier.

[0602] secondly, carries out underpressure distillation, obtain to be equivalent to the lubricating oil distillate of stock oil 20 volume % by the split product that above-mentioned hydrocracking is obtained.To this lubricating oil distillate, use butanone-toluene mixed solvent, in solvent/oil ratio is that 2 times, filtration temperature carry out solvent dewaxing under-30 ℃ the condition, obtains the different 3 kinds of lubricant bases (hereinafter referred to as " base oil 7 ", " base oil 8 " and " base oil 9 ") of viscosity grade.

[0603] the various proterties of base oil 1～9 and benchmark test the results are shown in table 4～6.

[0604] in addition, as the base oil that uses in the following comparative example, prepare base oil 10～17 (being the mineral oils base oil) and the following base oil 18～20 shown in table 7～9.The various proterties of base oil 10～17 shown in table 7～9 and benchmark test result.

(base oil)

Base oil 18: the poly-alpha olefins (kinematic viscosity 40 ℃ time the: 9.5mm ²/ s)

Base oil 19: the poly-alpha olefins (kinematic viscosity 40 ℃ time the: 21.5mm ²/ s)

Base oil 20: the poly-alpha olefins (kinematic viscosity 40 ℃ time the: 45.5mm ²/ s).

[0605] [table 4]

[0606] [table 5]

[0607] [table 6]

[0608] [table 7]

[0609] [table 8]

[0610] [table 9]

[0611] [embodiment 1-1～1-9, comparative example 1-1～1-3; Trimethylmethane refrigerator oil for refrigerant]

In embodiment 1-1～1-9, use base oil 7 shown in base oil 1, the base oil 4 shown in the table 5 or the table 6 shown in the table 4 and following additive, blending has the refrigerator oil of forming shown in table 10～11.In addition, in comparative example 1-1～1-3, use base oil 10 shown in the table 7 or above-mentioned base oil 18 and following additive, blending has the refrigerator oil of forming shown in the table 11.

(additive)

Additive 1-1: Tritolyl Phosphate

Additive 1-2: phenylglycidyl ether.

[0612] secondly, for the refrigerator oil of embodiment 1-1～1-9 and comparative example 1-1～1-3, the following benchmark test that carries out.

[0613] (lubricity test A)

Use FALEX trier (ASTM D2670), from sampling receptacle bottom be blown into cooling agent (Trimethylmethane) on one side, carry out the FALEX test on one side under the following conditions.In this test, obtain pin and average friction coefficient between the vee-block and abrasion loss as test film, estimate the rubbing characteristics and the wear resistance of refrigerator oil.Average friction coefficient is by between at the trial, measures a frictional force every 1 second, and the frictional force that obtains is calculated divided by loading.In addition, abrasion loss is by the pin of measuring FALEX off-test front and back and the weight of piece, obtains as the reduction of weight.Gained the results are shown in table 10～11.

On-test temperature: 25 ℃

Test period: 30 minutes

Load: 2001bf (1078N)

The cooling agent amount of being blown into: 10L/h.

[0614] (soundness test A)

In the autoclave of capacity 200ml, add refrigerator oil 80g and, seal as iron wire, copper wire and the aluminium wire (being 1.6mm φ * 100mm wire) of catalyzer.After this autoclave fully cooled off with the dry ice ethanolic soln, take out air in the autoclave, then, fill Trimethylmethane cooling agent 10g with drawdown pump.This autoclave was kept for 2 weeks down the variation of evaluate catalysts and whether sludge is arranged at 225 ℃.Gained the results are shown in table 10～11.

[0615] [table 10]

[0616] [table 11]

[0617] [embodiment 1-10～1-18, comparative example 1-4～1-6; Propane refrigerant refrigerator oil]

In embodiment 1-10～1-18, use base oil 2,3,5,6,8,9 shown in table 4～6 and above-mentioned additive 1-1,1-2, blending has the refrigerator oil of forming shown in table 12～13.In addition, in comparative example 1-4～1-6, use base oil 11,12 shown in the table 7 or above-mentioned base oil 19,20 and above-mentioned additive 1-1,1-2, blending has the refrigerator oil of forming shown in the table 13.

[0618] secondly, for the refrigerator oil of embodiment 1-10～1-18 and comparative example 1-4～1-6, the following benchmark test that carries out.

[0619] (lubricity test B)

Except using propane refrigerant replacement Trimethylmethane cooling agent, all the other are identical with lubricity test A, carry out the FALEX test, obtain average friction coefficient and abrasion loss.Gained the results are shown in table 12～13.

[0620] (soundness test B)

Except using propane refrigerant to replace the Trimethylmethane cooling agent, all the other are identical with soundness test A, carry out soundness test, the variation of evaluate catalysts and whether sludge is arranged.Gained the results are shown in table 12～13.

[0621] [table 12]

[0622] [table 13]

[0623] [embodiment 1-19～1-27, comparative example 1-7～1-9; Carbon dioxide refrigerant refrigerator oil]

In embodiment 1-19～1-27, use base oil 3,6,9 shown in table 4～6 and above-mentioned additive 1-1,1-2, blending has the refrigerator oil of forming shown in table 14～15.In addition, in comparative example 1-7～1-9, use base oil 12 shown in the table 7 or above-mentioned base oil 20 and above-mentioned additive 1,2, blending has the refrigerator oil of forming shown in the table 15.

[0624] secondly, for the refrigerator oil of embodiment 1-19～1-27 and comparative example 1-7～1-9, the following benchmark test that carries out.

[0625] (lubricity test C)

Use the high pressure frictional testing machines, estimate the oilness of each refrigerator oil.Employed trier, its sliding part is installed in the high pressure vessel, can carry out rub(bing)test under highly compressed carbon dioxide refrigerant atmosphere gas.About test conditions, the pressure of carbon dioxide refrigerant is 5MPa, and test temperature is 120 ℃, loads to be that 2000N, sliding velocity are 1m/s.In addition, the disk that uses the cylinder-like part of SUJ2 and SUJ2 is as test film, average friction coefficient and abrasion loss when obtaining the end face that makes cylinder-like part and disk and sliding.In at the trial, measured a frictional force, the frictional force that obtains is calculated average friction coefficient divided by loading every 1 second.In addition, about abrasion loss, determination test finishes the disk weight of front and back, obtains the reduction of weight.Gained the results are shown in table 14～15.

[0626] (soundness test C)

Except using carbon dioxide refrigerant to replace the Trimethylmethane cooling agent, all the other are identical with soundness test A, carry out soundness test, the variation of evaluate catalysts and whether sludge is arranged.Gained the results are shown in table 14～15.

[0627] [table 14]

[0628] [table 15]

[0629] [embodiment 1-28～1-36, comparative example 1-10～1-12; HFC refrigerator oil for refrigerant]

In embodiment 1-28～1-36, use base oil 1,4,7 shown in table 4～6 and above-mentioned additive 1-1,1-2, blending has the refrigerator oil of forming shown in table 16～17.In addition, in comparative example 1-10～1-12, use base oil 10 shown in the table 7 or above-mentioned base oil 18 and above-mentioned additive 1,2, blending has the refrigerator oil of forming shown in the table 17.

[0630] secondly, for the refrigerator oil of embodiment 1-28～1-36 and comparative example 1-10～1-12, the following benchmark test that carries out.

[0631] (lubricity test D)

Except using HFC134a cooling agent replacement Trimethylmethane cooling agent, all the other are identical with lubricity test A, carry out the FALEX test, obtain average friction coefficient and abrasion loss.Gained the results are shown in table 16～17.

[0632] (soundness test D)

Except using HFC134a cooling agent to replace the Trimethylmethane cooling agent, all the other are identical with soundness test A, carry out soundness test, the variation of evaluate catalysts and whether sludge is arranged.Gained the results are shown in table 16～17.

[0633] [table 16]

[0634] [table 17]

[0635] [embodiment 2-1～2-7, comparative example 2-1～2-4; Compressor oil composition]

(blending of lubricant base)

Base oil shown in the table 42 is mixed blending base oil 21 (base oil 2/ base oil 3=18/82 (mass ratio), the kinematic viscosity 40 ℃ time the: 31.5mm with base oil 3 ²/ s).In addition, the base oil shown in the table 55 is mixed blending base oil 22 (base oil 5/ base oil 6=22/78 (mass ratio), the kinematic viscosity 40 ℃ time the: 32.5mm with base oil 6 ²/ s).

[0636] (blending of compressor oil composition)

In embodiment 2-1～2-4, use base oil 21 or base oil 22 and following additive, blending has the compressor oil composition of forming shown in the table 18.In addition, in embodiment 2-5～2-7, use base oil 9 shown in the table 6 and following additive, blending has the compressor oil composition of forming shown in the table 19.In addition, in comparative example 2-1～2-4, use the base oil 9 shown in the table 6, above-mentioned base oil 21 or base oil 13 shown in the table 7 and following additive, blending has the compressor oil composition of forming shown in the table 20.

(antioxidant)

A2-1: dodecylphenyl-alpha-naphthylamine

A2-2:N-octyl phenyl-N-butylaniline

(antimist agent)

B2-1: polymethacrylate (weight-average molecular weight: 80,000)

(Phosphorus extreme pressure agent)

C2-1: Tritolyl Phosphate.

[0637] [thermal oxidation stability test]

For the compressor oil composition of embodiment 2-1～2-7 and comparative example 2-1～2-4, measure the residual life-span of RBOT according to JIS K 2514.Gained the results are shown in table 18～20.In the table, the value in residual life-span of RBOT is big more, mean that the thermal oxidation stability of this compressor oil composition is good more, and the effect of antioxidant is good more.

[0638] [oil spray test]

For the compressor oil composition of embodiment 2-1～2-7 and comparative example 2-1～2-4, carry out oil spray test according to ASTM D 3705.

[0639] Fig. 1 is the summary pie graph that is illustrated in the oil spray test device that uses in this test.Oil spray test device 1 shown in Figure 1 has the formation that oil fog generator 11 and mist of oil box 12 link together via pipe arrangement L1.

[0640] shape of oil fog generator 11 sides of pipe arrangement L1 as shown in the figure, is a starting point with the link position with oil fog generator 11, extends upward, and then, in the prescribed position bending, extends downwards.Near pipe arrangement L1 and link position oil fog generator 11, be provided for monitoring the pressure warning unit 13 of pressure of sending into the mist of oil of pipe arrangement L1 from oil fog generator 11.

[0641] then, pipe arrangement L1 is at the prescribed position of the part of extending downwards, and bifurcated is for continuing branch downward and obliquely, and the lower end of the pipe arrangement that extends is connected on the trapping bottle 14 downwards.In this trapping bottle 14, collect the part mist of oil of sending from oil fog generator 11.

[0642] in addition, bifurcated is a pipe arrangement obliquely, is 2 branches at the further bifurcated of prescribed position, and each pipe arrangement of bifurcated penetrates into the upper wall of mist of oil box 12.Then, nozzle 15 is set, the mist of oil of sending from oil fog generator 11 is ejected into mist of oil box 12 inside by this nozzle 15 in the end of bifurcated pipe arrangement.At this moment, the mist of oil of an ejection part liquefies, and accumulates in mist of oil box 12 inside, and another part becomes spuious mist of oil (stray mist).The spuious mist of oil that is produced is discharged to the outside of mist of oil box 12 from the spuious mist of oil relief outlet 16 on the sidewall that is arranged at mist of oil box 12.

[0643] uses oil spray test device, estimate the anti-mist of oil of each compressor oil composition with above-mentioned formation.Specifically, in oil fog generator 11, inject each compressor oil composition of specified amount, make its atomizing, the oil mass that accumulate oil mass that captures in the remaining oil mass in the mensuration oil fog generator 11, the trapping bottle 14 and mist of oil box 12 inside.Then, (A) obtains the mist of oil generation according to following formula, obtains spuious mist of oil rate according to following formula (B).Gained the results are shown in table 18～20.Illustrated that in the table, the mist of oil generation is few more, meaned that the consumption of the oil that is used to atomize is few more.In addition, spuious mist of oil rate is more little, as compressor oil the time, means that the oil mass that is discharged into by in the ejection gas of strainer is few more.

(mist of oil generation [g/h])={ (being injected into the oil mass [g] of oil fog generator 11)-(the remaining oil mass [g] in the oil fog generator 11 after the test) }/(test period [h]) (A)

(spuious mist of oil rate [%])={ (mist of oil generation [g])-(capture oil mass in the trapping bottle 14 after the test and the aggregate value [g] that accumulates in the oil mass of mist of oil box 12 inside) } * 100/ (mist of oil generation [g]) (B)

[0644] [anti-sludge evaluation test]

Compressor oil composition for embodiment 2-1～2-7 and comparative example 2-1～2-4, use (the motor output: 11kW, pressurized gas: air), in ejection pressure 0.8 ± 0.1MPa, fuel tank, carry out the real machine test of small test scale under the condition of 90 ℃ of temperature of rotary-type spiral-lobe compressor.Stopped compressor after 6000 hours on-tests, the opening point that carries out the water-cooled water cooler detects, and judges the degree of adhesion of sludge on finned tube according to following metewand.Gained the results are shown in table 18～20.

1: sludge is attached on the whole finned tube, and the gap between the pipe is also stopped up by sludge

2: sludge consequently can not be confirmed the shape of fin attached on the whole finned tube

3: sludge is attached on the whole finned tube, but can confirm the shape of fin

4: sludge can be confirmed the matrix of finned tube partly attached on the finned tube

5: confirm with test before compare almost and do not change.

[0645] [table 18]

[0646] [table 19]

[0647] [table 20]

[0648] [embodiment 3-1～3-15, comparative example 3-1～3-7; Hydraulic oil composition]

In embodiment 3-1～3-15, use base oil 3,6,9 and the following additive shown in table 4～6, blending has the hydraulic oil composition of forming shown in table 21～23.In addition, in comparative example 3-1～3-7, use base oil 3,6,9,12 and the following additive shown in table 4～8, blending has the hydraulic oil composition of forming shown in table 24～25.

(containing phosphorus and/or sulphur) as the compound that constitutes element

A3-1: Tritolyl Phosphate

A3-2: β-dithio phosphinylidyne ethyl propionate

A3-3: triphenyl-thiophosphate

A3-4: dioctyl zinc dithiophosphate

(other additive)

B3-1:2, the 6-ditertbutylparacresol

B3-2: dioctyl diphenylamine.

[0649] secondly, the hydraulic oil composition for embodiment 3-1～3-15 and comparative example 3-1～3-7 carries out following evaluation test.

[0650] [thermal oxidation stability test]

Hydraulic oil composition for embodiment 3-1～3-15 and comparative example 3-1～3-7, " test of turbine oil oxidation permanence " according to regulation among the JIS K 2514 carries out thermal oxidation stability test, the time of the acid number of mensuration hydraulic oil composition during from on-test to rising 2.0mgKOH/g.Gained the results are shown in table 21～25.

[0651] [SRV (small to-and-fro movement friction) test]

To the hydraulic oil composition of embodiment 3-1～3-15 and comparative example 3-1～3-7, carry out the SRV test, estimate rubbing characteristics.More particularly, as shown in Figure 2, at the some contact area coated sample oil of disk 1 with configuration ball 202 thereon, on one side to ball 202 applying load (arrow A among the figure) vertically downward, Yi Bian make surface direction (arrow B in figure) the relatively to-and-fro movement of ball 202 along disk 201.Measure frictional coefficient at this moment with the load cell (not shown) that is installed on disk 1 retainer (not shown).As disk 201, use the disk of the SPCC material of diameter 25mm, thick 8mm, in addition,, use the ball of the SPCC material of diameter 10mm as ball 202.In addition, the load that is applied on the ball 202 is 1, and 200N, the amplitude of ball 2 are that 1mm, frequency are 50Hz, and temperature is 80 ℃.Gained the results are shown in table 21～25.

[0652] [cut resistance test]

For each lubricating oil composition of embodiment 3-1～3-15 and comparative example 3-1～3-7, carry out the vane pump test of regulation among the ASTM D 2882, the blade before and after the experiment with measuring and the weight of annulus are measured abrasion loss.Test period is 100 hours.Gained the results are shown in table 21～25.

[0653] [table 21]

[0654] [table 22]

[0655] [table 23]

[0656] [table 24]

[0657] [table 25]

[0658] [embodiment 4-1～4-7, comparative example 4-1～4-4; Metalworking fluid composition]

In embodiment 4-1～4-7, use base oil 1,6,9 and the following additive shown in table 4～6 respectively, blending has the Metalworking fluid composition of forming shown in the table 26.In addition, in comparative example 4-1～4-4, use base oil 12 shown in the table 7 or following base oil 23 and following additive respectively, the Metalworking fluid composition shown in the blending table 27.In table 26～27, the kinematic viscosity of each Metalworking fluid composition in the time of 40 ℃ is shown in the lump.Illustrated that the content of additive shown in table 26～27 is to be the content of benchmark with the total composition.

(base oil)

Base oil 23: the paraffinic mineral oil (kinematic viscosity 40 ℃ time the: 49.7mm ²/ s, saturated composition: 91.5 quality %, the saturated composition of ring-type shared ratio in saturated composition: 49.8 quality %)

(additive)

Additive 4-1: butyl stearate

Additive 4-2: lauryl alcohol

Additive 4-3: oleic acid

Additive 4-4: Tritolyl Phosphate

Additive 4-5: sulfuration ester (inert type).

[0659] secondly, the Metalworking fluid composition for embodiment 4-1～4-7 and comparative example 4-1～4-4 carries out following evaluation test.

[0660] [volume is pressed processing experiment]

Use the Metalworking fluid composition of embodiment 4-1～4-7 and comparative example 4-1～4-4 respectively, when aluminium disks (JIS A 5182, diameter 100mm, thick 0.4mm) being shaped to the container at the band end, measure the maximum volume pressure of needed drift when wrinkle resistant pressure is 1000kg.Gained the results are shown in table 26～27.In table 26～27, maximum volume pressure is more little, means that processibility is good more.

[0661] [removes oiliness test (1)]

On the one side of aluminium disks (JIS A 5182, diameter 100mm, thick 0.4mm), with each 3g/m of Metalworking fluid composition of atomizer coating embodiment 4-1～4-7 and comparative example 4-1～4-4 ², at room temperature left standstill 6 hours.Then, disk was flooded 1 minute in containing the grease-removing agent of nonionic surface active agent, and then, the disk that takes out was washed for 30 seconds in flowing water.After this washing, immediately disk is kept vertical along diametric(al), measure the water-wet area after 20 seconds, the 90% above person that the water-wet area reaches the coated face area is evaluated as A; Be evaluated as B less than 90%.Gained the results are shown in table 26～27.Illustrated that water-wet area big more (promptly estimating the sample of A) means that to remove oiliness good more.

[0662] [table 26]

[0663] [table 27]

[0664] [embodiment 4-8～4-14, comparative example 4-5～4-8]

In embodiment 4-8～4-14, use base oil 2,4,7 and the following additive shown in table 4～6 respectively, blending has the Metalworking fluid composition of forming shown in the table 28.In addition, in comparative example 4-5～4-8, use base oil 10 shown in the table 7 or following base oil 24 and following additive respectively, the Metalworking fluid composition shown in the blending table 29.In table 28～29, the kinematic viscosity of each Metalworking fluid composition in the time of 40 ℃ is shown in the lump.Illustrated that the content of additive shown in table 28～29 is to be the content of benchmark with the total composition.

(base oil)

Base oil 24: the paraffinic mineral oil (kinematic viscosity 40 ℃ time the: 19.3mm ²/ s, saturated composition: 99.1 quality %, the saturated composition of ring-type shared ratio in saturated composition: 45.9 quality %)

(additive)

Additive 4-1: butyl stearate

Additive 4-2: lauryl alcohol

Additive 4-4: Tritolyl Phosphate

Additive 4-5: sulfuration ester (inert type).

[0665] secondly, the Metalworking fluid composition for embodiment 4-8～4-14 and comparative example 4-5～4-8 carries out following evaluation test.

[0666] [rolling processing experiment]

Use the Metalworking fluid composition of embodiment 4-8～4-14 and comparative example 4-5～4-8 respectively, when stainless steel rolled material (SUS304, long 100mm, wide 50mm, thick 0.25mm) when being rolled, is measured needed rolling load when roll speed 250m/min, draft 35%.Gained the results are shown in table 28～29.In table 28～29, rolling load is more little, means that processibility is good more.

[0667] [removes oiliness test (2)]

On the one side of stainless steel rolled material (SUS304, long 100mm, wide 50mm, thick 0.25mm), with each 3g/m of Metalworking fluid composition of atomizer coating embodiment 8～14 and comparative example 5～8 ², at room temperature left standstill 6 hours.Then, rolled material was flooded for 5 seconds in normal hexane, again with the rolled material drying of taking out.Then, rolled material was heated to 450 ℃ with 3 hours from room temperature, under uniform temp, keeps spending 2 hours and being cooled to room temperature (hot degreasing) after 1 hour.Measure the area of the variable color part on rolled material surface after this hot degreasing, the 95% above person that the variable color area reaches the coated face area is evaluated as A, is evaluated as B less than 95%.Gained the results are shown in table 28～29.Illustrated that variable color area big more (promptly being evaluated as A) means that to remove oiliness good more.

[0668] [table 28]

[0669] [table 29]

[0670] [embodiment 4-15～4-24, comparative example 4-9～4-11]

In embodiment 4-15～4～24, use base oil 3,4,7 and the following additive shown in table 4～6 respectively, blending has the Metalworking fluid composition of forming shown in table 30～31 (machining oil composition).In addition, in comparative example 4-9～4-11, use base oil 10 shown in the table 7 and following additive respectively, the Metalworking fluid composition shown in the blending table 31.In table 30～31, the kinematic viscosity of each Metalworking fluid composition in the time of 40 ℃ is shown in the lump.Illustrated that in the composition hurdle of table 30～31, each content of base oil 3,4,7,9 and additive 4-6～4-13 is to be the content of benchmark with the total composition.

(additive)

Additive 4-6: active sulfuration ester (sulphur content: 17.5 quality %)

Additive 4-7: two uncle's dodecyl polysulfides (sulphur content: 32 quality %)

Additive 4-8: phosphorodithioic acid zn cpds (sulphur content: 20 quality %, zinc content: 10 quality %, phosphorus content: 9 quality %)

Additive 4-9: overbased calcium sulfonate (base number: 400mgKOH/g)

Additive 4-10: the ethylene-propylene copolymer (kinematic viscosity 100 ℃ time the: 1200mm ²/ s)

Additive 4-11: Tritolyl Phosphate

Additive 4-12: high oleic acid vegetables oil (iodine number: 95, oleic acid shared ratio in constituting carboxylic acid: 65 quality %)

Additive 4-13: n-dodecane alcohol.

[0671] secondly, the Metalworking fluid composition for embodiment 4-15～4-24 and comparative example 4-9～4-11 carries out following evaluation test.

[0672] [tapping (tapping) test]

Use each Metalworking fluid composition of embodiment 4-15～4-24 and comparative example 4-9～4-11, adopt common oil supply mode to carry out the tapping test.Specifically, be used alternatingly each Metalworking fluid composition and standard of comparison oil (DIDA: diisodecyl adipate), under following condition, carry out the tapping test, measure the tapping energy of each occasion.

The tapping condition

Instrument: nut tap (nut tap) M8 (P=1.25mm)

Prebored hole aperture: φ 7.2mm

Workpiece (work): AC8A (t=10mm)

Cutting speed: 9.0m/ branch

The oil feed mode

The condition that Metalworking fluid composition and DIDA are divided with about 6mL/ is directly supplied with working position and is processed.

[0673] secondly, use the measured value of the tapping energy that obtains, calculate tapping energy efficiency (%) according to following formula.Gained the results are shown in table 28～29.In the table, the value of tapping energy efficiency is high more, means that oilness is high more.

Tapping energy efficiency (%)=(the tapping energy when using DIDA)/(the tapping energy when using oil agent composition)

[0674] [test of the oil amount of taking away]

(60mm * 80mm) dipping kept 1 minute in each Metalworking fluid composition of embodiment 4-9～4-15 and comparative example 4-9～4-11 with the SPCC steel plate.Then, the SPCC steel plate is taken out, vertical hanging 5 minutes gets rid of oil, measures the adhesion amount (the oil amount of taking away) of Metalworking fluid composition.Gained the results are shown in table 30～31.

[0675] [table 30]

[0676] [table 31]

[0677] [embodiment 5-1～5-11, comparative example 5-1～5-10: heat-treatment oil composition]

In embodiment 5-1～5-6, use base oil 1,2,3,5 shown in table 4～5 and following cooling improving agent A5-1, A5-2, A5-3, blending has the heat-treatment oil composition of forming shown in the table 32.In addition, in embodiment 5-7～5-11, use base oil 7～9 shown in the table 6 and following cooling improving agent A5-1, A5-2, A5-3, blending has the heat-treatment oil composition of forming shown in the table 33.In addition, in comparative example 5-1～5-10, use base oil 1～3,5,7～9,12,16,17 shown in table 4～7,9 and following cooling improving agent A5-1, A5-2, A5-3, blending has the heat-treatment oil composition of forming shown in table 34～35.In table 32～35, the kinematic viscosity of each heat-treatment oil composition in the time of 40 ℃ is shown in the lump.

(cooling property improving agent)

A5-1: ethylene-propylene copolymer (trade(brand)name: Le-カ Application ト HC600, Mitsui petroleum chemistry society system, number-average molecular weight: 2600)

A5-2: the insoluble composition of bituminous is removed thing (trade(brand)name: NC505, Pennzoil corporate system)

A5-3: calcium salicylate (trade(brand)name: SAP002, shell chemical company system).

[0678] secondly, the heat-treatment oil composition for embodiment 5-1～5-11 and comparative example 5-1～5-10 carries out following evaluation test.

[0679] [quenching test 1]

With the cylindric steel (S45C) of the diameter 24mm of bottom surface, high 10mm hydrogen/nitrogen mixture gas (hydrogen/nitrogen ratio: 3/97), 850 ℃ down heating put in the heat-treatment oil composition that is heated to 80 ℃ and quench after 45 minutes.After the quenching, on the diameter of steel bottom surface, 7 place's measuring points of 3mm at interval, use Rockwell hardometer to measure hardness, obtain their mean value.Gained the results are shown in table 32～35.

[0680] [quenching test 2]

Prepare the cylindric steel (SUJ2) of 24 sections bottom surface diameter 8mm, high 90mm, these steel are used batch furnace, simultaneously 24 sections steel are quenched.Illustrated that the heating condition of steel is 830 ℃, 60 minutes, the oily temperature during quenching is 80 ℃.After the quenching, use dial indicator (dial gauge), measure " bending " of each steel, obtain 24 sections mean value.Gained the results are shown in table 32～35.Illustrated that " bending " be meant, steel are placed on the V-arrangement block, the top of dial indicator is touched steel centre longitudinally, made steel slowly rotation on the V-arrangement block, read the maximum displacement value of steel at this moment, measured " bending " of steel with this.

[0681] [table 32]

[0682] [table 33]

[0683] [table 34]

[0684] [table 35]

[0685] [embodiment 6-1～6-21, comparative example 6-1～6-8]

In embodiment 6-1～6-21, use base oil 3,6,9 and the following additive shown in table 4～6, blending has the work mechanism lubricating oil composition of forming shown in table 36～38.In addition, in comparative example 6-1～6-8, use base oil 3,6,9,12,14,15 and the following additive shown in table 4～8, blending has the work mechanism lubricating oil composition of forming shown in table 39～40.

(containing phosphorus and/or sulphur) as the compound that constitutes element

A6-1: acid phosphoric acid oil base ester

A6-2: the oleyl amine salt of acid phosphoric acid oil base ester

A6-3: Tritolyl Phosphate

A6-4: sulfuration ester (sulphur content: 11.4 quality %)

A6-5: sulfuration lard (sulphur content: 11.0 quality %)

(other additives)

B6-1: oleic acid

B6-2:2, the 6-ditertbutylparacresol.

[0686] secondly, the work mechanism lubricating oil composition for embodiment 6-1～6-21 and comparative example 6-1～6-8 carries out following evaluation test.

[0687] [thermal oxidation stability test]

According to " the hot permanence test method of lubricating oil " of JIS K 2540-1989, estimate the sludge formation inhibition of each lubricating oil composition.That is, in the 50ml beaker, take by weighing lubricating oil composition 45g,, in 140 ℃ air thermostatic bath, place after 72 hours, measure the sludge amount of lubricating oil composition to wherein adding copper catalyst and iron catalyst.The sludge amount that generates is obtained by following method, that is, the lubricating oil composition after the test is diluted with normal hexane, with the membrane filter filtration of 0.8 μ m, measures the weight that captures thing then.As copper catalyst and iron catalyst, use a kind of catalyzer by will use in turbine oil oxidation permanence test (JIS K 2514) to cut into the catalyzer that 8 sections (volumes) (the about 3.5cm of length) forms.Gained the results are shown in table 36～40.

[0688] [rubbing characteristics evaluation test]

Fig. 3 is the summary pie graph that is illustrated in the measuring friction coefficient system that uses in the rubbing characteristics evaluation test.Among Fig. 3, on base 306, dispose the operator's console 301 and the movable anchor clamps 304 that link together via load cell 305, and then on operator's console 301, dispose ballast 309 as the machining tool surrogate.Operator's console 301 and base 306 are made by cast iron.In addition, movable anchor clamps 304 have bearing portion, and this bearing portion is connected on the A/C servosystem 302 via feed screw 303.Make feed screw 303 produce motion by A/C servomotor 302, can make movable anchor clamps 304 go up to-and-fro movement thus in axial (direction of arrow among the figure) of feed screw 303.And then, load cell 305 is electrically connected with computer 307, computer 307 and A/C servomotor 302 are electrically connected with switchboard 308 respectively, can carry out the reciprocating control of movable anchor clamps 304 and the mensuration of the load between operator's console 301 and the movable anchor clamps 304 thus.

[0689] in this measuring friction coefficient system, lubricating oil composition drips above base 306, by selection operation platform ballast 309, face between operator's console 301 and the base 306 pressure is adjusted to 200kPa, then, under the condition of speed of feed 1.2mm/min, feeding length 15mm, movable anchor clamps 304 are moved back and forth.Measure the operator's console 301 of this moment and the load between the movable anchor clamps 304 with load cell 305 (load gauge),, obtain the frictional coefficient of guide surface (operator's console 301/ base 306=cast iron/cast iron) according to the measured value that obtains.Illustrated that above-mentioned test is carried out after 3 coastings carrying out.The frictional coefficient of each lubricating oil composition is shown in table 36～40.

[0690] (evaluation test of stick-slip reduction property)

Fig. 4 is for illustrating stick-slip reduction property evaluating apparatus (PLINT ﹠amp; PARTNERS corporate system TE-77 trier) summary pie graph.About device shown in Figure 4, supporting stacked in order downside test film 402, upside test film 401, elastomerics 400 on the platform 410, load according to the rules, utilize elastomerics 400 that test film 401,402 is compressed mutually on one side, make elastomerics 400 to-and-fro movements (sliding motion) along the face of supporting platform 410 on one side, test film 401,402 is slided.Then, when carrying out this slip, measure the load that is applied on the test film 401,402, obtain the frictional coefficient of 401,402 of test films thus with load detector 403.Fig. 5 is the graphic representation that is illustrated in an example of the frictional coefficient that obtains in the aforesaid operations and the mutual relationship of time.Δ μ among the figure represents the amplitude of frictional coefficient.

[0691] uses this device, the improvement of test film and condition is used for slide guide rail to be estimated with lubricating oil, in addition, according to the method shown in the document (the pre-original text collection of tribology association tribology meeting Tokyo 1999-5 D17), measure the Δ μ when making each lubricating oil composition be between the test film 401,402.Specifically, test film 401,402 all uses JIS G 4051S45C, and elastomerics 400 uses chloroprene rubber, tests under the condition of average sliding velocity 0.3mm/s, load 250N.When Δ μ is evaluated as " no stick-slip " less than 0.02 the time,, so estimates stick-slip and reduce property when amplitude Δ μ 0.02 is evaluated as " stick-slip is arranged " when above.Gained the results are shown in table 36～40.

[0692] [table 36]

[0693] [table 37]

[0694] [table 38]

[0695] [table 39]

[0696] [table 40]

[0697] [embodiment 7-1～7-18, comparative example 7-1～7-4; Lubricating oil composition]

(blending of lubricant base)

Base oil shown in the table 42 is mixed blending base oil 25 (base oil 2/ base oil 3=10/90 (mass ratio), the kinematic viscosity 40 ℃ time the: 32mm with base oil 3 ²/ s).

[0698] in addition, the base oil shown in the table 55 is mixed blending base oil 26 (base oil 5/ base oil 6=12/88 (mass ratio), the kinematic viscosity 40 ℃ time the: 32.1mm with base oil 6 ²/ s).

[0699] in addition, the base oil shown in the table 7 11 is mixed blending base oil 27 (base oil 11/ base oil 12=20/80 (mass ratio), the kinematic viscosity 40 ℃ time the: 32mm with base oil 12 ²/ s).

[0700] and then, as the lubricant base that is used for comparison, prepare base oil 28 (poly-alpha olefins, the kinematic viscosity 40 ℃ time the: 32.0mm ²/ s).

[0701] (blending of lubricating oil composition)

In embodiment 7-1～7-10, use above-mentioned base oil 25 or base oil 26 and following additive, blending has the lubricating oil composition of forming shown in table 41～42.In addition, in embodiment 7-11～7-18, use base oil 9 shown in the table 6 and following additive, blending has the lubricating oil composition of forming shown in table 43～44.In addition, in comparative example 7-1～7-4, use above-mentioned base oil 27 or base oil 28 and following additive, blending has the lubricating oil composition of forming shown in the table 45.

(antioxidant)

A7-1:(3,5-di-t-butyl-4-hydroxyphenyl) propionic ester

A7-2: dodecylphenyl-alpha-naphthylamine

A7-3:N-octyl phenyl-n-butyl aniline

(aromatic hydroxy compound that alkyl replaces)

B7-1: the alkylnaphthalene that has 1～2 carbon number and be 16 or 18 alkyl.

[0702] [evaluating characteristics test (1)]

For the lubricating oil composition of embodiment 7-1～7-18 and comparative example 7-1～7-4, carry out the turbine oil oxidation permanence test (TOST) of regulation among the JIS K 2514 and the evaluating characteristics test of rotor pump formula oxidation permanence test (RBOT) and usefulness.Specifically, in the TOST test, make each lubricating oil composition under 120 ℃, carry out the oxidative degradation of specified time, measure sludge formation amount and RBOT value at this moment.Then, arrive 25% time (arriving the time in residual life-span 25%) of RBOT value before the test and the sludge formation amount of this moment, the thermal oxidation stability and the sludge inhibition of evaluation lubricating oil composition based on the RBOT value of deterioration oil.Time in the RBOT value before the test of each lubricating oil composition, residual life-span 25% of arrival and arrive the sludge formation amount (growing amount of every 100ml sample oil) in 25% o'clock residual life-span and be shown in table 41～45.

[0703] [evaluating characteristics test (2)]

For the lubricating oil composition of embodiment 7-1～7-18 and comparative example 7-1～7-4, following such sludge inhibition of estimating.Fig. 6 is the figure that the summary formation of the high-temperature pump round-robin test equipment that uses in this test is shown.Among Fig. 6, in circulation stream L2, set gradually fuel tank 601, piston pump 602, reducing valve 603, pipeline filter 604, under meter 605, water cooler 606, lubricating oil composition in the fuel tank 601 is drawn out among the circulation stream L2 by piston pump 602, by circulation stream L2, return fuel tank 601 once more.

[0704] in this test, utilize high-temperature pump round-robin test equipment shown in Figure 6, use piston pump 602, each lubricating oil composition is circulated under 7MPa, 120 ℃ of conditions, the differential pressure before and after the monitoring pipeline filter 604 (3 μ m) rises.Differential pressure when not having sludge is about 35kPa, in case trap sludge, differential pressure will slowly rise.Runtime when so the mensuration differential pressure reaches 100kPa is with this yardstick as preventing property of sludge formation.Gained the results are shown in table 41～45.Illustrated that the numerical value of this runtime is big more, expression sludge formation inhibition is good more."〉1000 in the table is described " even mean and reach 1000 hours runtime, differential pressure can not arrive 100kPa yet.

[0705] [table 41]

[0706] [table 42]

[0707] [table 43]

[0708] [table 44]

[0709] [table 45]

Claims (12)

1, refrigerator oil is characterized in that, contains %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5.

2, compressor oil composition is characterized in that, contains:

%C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5,

Antioxidant, and

Antimist agent.

3, the described compressor oil composition of claim 2 is characterized in that, the content of above-mentioned antioxidant is benchmark with the total composition, is 0.02～5 quality %.

4, hydraulic oil composition is characterized in that, contains:

%C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5, and

Contain phosphorus and/or sulphur as the compound that constitutes element.

5, Metalworking fluid composition is characterized in that, contains %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5, and

From ester, alcohol, carboxylic acid and contain phosphorus and/or sulphur as at least a kind of lubricity improver selecting the compound that constitutes element.

6, heat-treatment oil composition is characterized in that, contains %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is lubricant base and cooling property improving agent below 2.5.

7, the described heat-treatment oil composition of claim 6, it is characterized in that above-mentioned cooling improving agent is at least a kind of selecting the alkali earth metal salt of removing thing and alkyl salicylate from multipolymer, pitch and the insoluble composition thereof of the alpha-olefin of ethene and carbon number 3～20.

8, the work mechanism lubricating oil composition is characterized in that, contains:

%C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5, and

Contain phosphorus and/or sulphur as the compound that constitutes element.

9, lubricating oil composition is characterized in that, contains %C _ABe below 2, %C _P/ %C _NBe more than 6, iodine number is the lubricant base below 2.5, and sulfur-bearing is not an antioxidant as constituting the ashless of element;

Above-mentioned ashless be the content of antioxidant, be benchmark with the total composition, be 0.3～5 quality %.

10, the described lubricating oil composition of claim 9 is characterized in that, also contains the aromatic hydroxy compound that alkyl replaces.

11, claim 9 or 10 described lubricating oil compositions, it is characterized in that, aromatic hydroxy compound as abovementioned alkyl replaces is at least a kind that is selected from alkylbenzene, alkylnaphthalene, alkyl biphenyl and the alkyl diphenyl base paraffinic hydrocarbons, and is the compound with alkyl of 1 or 2 carbon number 8～30.

12, each described lubricating oil composition of claim 9～11 is characterized in that,

Contain phenyl-a-naphthylamine compound and alkylated diphenylamine compound the two as above-mentioned ashless be antioxidant, and,

The alkylated diphenylamine compound is shared ratio in the total amount of phenyl-a-naphthylamine compound and alkylated diphenylamine compound, by mass ratio, is 0.1～0.9.

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