WO2000053704A1 - Compositions huileuses pour machines refrigerantes - Google Patents
Compositions huileuses pour machines refrigerantes Download PDFInfo
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- WO2000053704A1 WO2000053704A1 PCT/JP2000/001197 JP0001197W WO0053704A1 WO 2000053704 A1 WO2000053704 A1 WO 2000053704A1 JP 0001197 W JP0001197 W JP 0001197W WO 0053704 A1 WO0053704 A1 WO 0053704A1
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
- C10M107/34—Polyoxyalkylenes
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- C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
- C10M101/02—Petroleum fractions
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- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/38—Esters of polyhydroxy compounds
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- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/42—Complex esters, i.e. compounds containing at least three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compound: monohydroxy compounds, polyhydroxy compounds, monocarboxylic acids, polycarboxylic acids and hydroxy carboxylic acids
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- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/42—Complex esters, i.e. compounds containing at least three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compound: monohydroxy compounds, polyhydroxy compounds, monocarboxylic acids, polycarboxylic acids and hydroxy carboxylic acids
- C10M105/46—Complex esters, i.e. compounds containing at least three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compound: monohydroxy compounds, polyhydroxy compounds, monocarboxylic acids, polycarboxylic acids and hydroxy carboxylic acids derived from the combination of monohydroxy compounds, dihydroxy compounds and dicarboxylic acids only and having no free hydroxy or carboxyl groups
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- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/22—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol, aldehyde, ketonic, ether, ketal or acetal radical
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- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/26—Carboxylic acids; Salts thereof
- C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
- C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
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- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
- C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
- C10M129/68—Esters
- C10M129/76—Esters containing free hydroxy or carboxyl groups
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- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/16—Amides; Imides
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- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
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- C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
- C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
- C10M137/04—Phosphate esters
- C10M137/08—Ammonium or amine salts
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- C10M141/00—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential
- C10M141/10—Lubricating compositions characterised by the additive being a mixture of two or more compounds covered by more than one of the main groups C10M125/00 - C10M139/00, each of these compounds being essential at least one of them being an organic phosphorus-containing compound
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- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
- C10M145/28—Polyoxyalkylenes of alkylene oxides containing 2 carbon atoms only
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- C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
- C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M145/24—Polyethers
- C10M145/26—Polyoxyalkylenes
- C10M145/36—Polyoxyalkylenes etherified
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- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
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- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/044—Mixtures of base-materials and additives the additives being a mixture of non-macromolecular and macromolecular compounds
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/008—Lubricant compositions compatible with refrigerants
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
- C10M2203/1025—Aliphatic fractions used as base material
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- C10M2203/1045—Aromatic fractions used as base material
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- C10M2203/1065—Naphthenic fractions used as base material
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- C10M2203/108—Residual fractions, e.g. bright stocks
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- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
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- C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
- C10M2229/02—Unspecified siloxanes; Silicones
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- C10N2040/36—Release agents or mold release agents
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- C10N2040/40—Generators or electric motors in oil or gas winning field
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- C10N2040/42—Flashing oils or marking oils
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- C10N2040/50—Medical uses
Definitions
- the present invention relates to a refrigerating machine oil composition, and more particularly, has excellent lubricating performance, and particularly in a friction portion between an aluminum material and an iron material, excellent friction and wear in both the oily region and the extreme pressure region.
- the present invention relates to a refrigerating machine oil composition suitable for lubricating oil of a refrigerating machine using a non-chlorinated chlorofluorocarbon refrigerant such as R134a, which can exhibit a reduction effect and does not cause environmental pollution.
- a non-chlorinated chlorofluorocarbon refrigerant such as R134a
- a compression-type refrigerator is composed of at least a compressor, a condenser, an expansion mechanism (expansion valve, etc.), an evaporator, or a dryer, and a liquid mixture of refrigerant and lubricating oil circulates in this closed system. It has a structure to do.
- dichlorodifluoromethane (R12), dichloromethane (R22), and the like are often used as refrigerants, and various mineral oils and lubricating oils are used as lubricating oils. Synthetic oils have been used.
- non-chlorinated chlorofluorocarbon compounds such as hydrofluorocarbons have been attracting attention as new refrigerants.
- the two non-chlorinated fluorocarbon compounds, in particular, hydrofluorocarbon represented by R14a have no risk of destruction of the ozone layer, and can be used with almost no change in the structure of conventional refrigerators. It is preferable as a compression-type chiller such as it can be replaced with 2nd mag.
- This new alternative olefin-based refrigerant has different properties from conventional chlorofluorocarbon-based refrigerants, and refrigeration oils used in combination with it include, for example, polyalkylene glycols having a specific structure, polyesters, polyol esters, It is known that base oils such as polycarbonate, polycarbonate, alkylbenzene, etc. to which various additives are blended are useful.
- base oils such as polycarbonate, polycarbonate, alkylbenzene, etc. to which various additives are blended are useful.
- these refrigerating machine oils have poor lubricating performance under the above-mentioned refrigerant atmosphere, and in particular, increase the wear between the aluminum material and the iron material of the compressor for the air conditioner refrigerating machine, which is a serious problem in practical use.
- the frictional part between aluminum and iron is a bearing part for a one-way type, an Oldham ring part for a scroll type, and a reciprocating type.
- a bearing part for a one-way type there are a condro (aluminum) z piston bin (steel) part.
- the bearing part and the Oldham ring part are areas where the oily effect of lubricating oil can be exhibited in a lubrication part with relatively low surface pressure (hereinafter referred to as the oily area).
- TCP tricresyl phosphate
- TPP trifidyl phosphate
- Sorbitan monoolate has been proposed as a lubricity improver, but has the effect of reducing friction in the oily region, but has the disadvantage of low volume resistance.
- the present invention has been made from the above viewpoints.
- the present invention has excellent lubricating performance, and has a good friction reduction effect in both the oily region and the extreme pressure region, particularly in the friction portion between aluminum material and iron material. It is an object of the present invention to provide a refrigerating machine oil composition suitable for lubricating oil of a refrigerating machine using a non-chlorinated chlorofluorocarbon refrigerant such as R134a which does not cause environmental pollution. Disclosure of the invention
- the present inventors have conducted intensive studies to speed up the above object, and as a result, found that the object of the present invention can be effectively achieved by using a specific additive, and completed the present invention. That is what led to it.
- the present invention comprises the following first and second inventions.
- the gist of the first invention is as follows.
- a partial ester of a polyhydric alcohol and a fatty acid is () 0.15 to 5% by weight, based on the total amount of the composition, and
- the oxygen-containing synthetic oil is at least one kind selected from polyvinyl ether, polyol ester and polyalkylene glycol.
- the boryl ether has the following general formula (XIX)
- R 4 ° represents a hydrocarbon group having 1 to 3 carbon atoms and having no ether bond in the molecule.
- R 46 represents a hydrocarbon group having or not having an ether bond in the molecule having 3 to 20 carbon atoms.
- the gist of the second invention is as follows.
- Base oil consisting of mineral oil and / or synthetic oil, (a) acidic phosphate esters or amine salts thereof, (b) alkylene glycol of acetylene glycol (C) potassium salt or sodium salt of a fatty acid, (d) the following general formula (XXXIV)
- R '1 is be shown an alkyl group or an alkenyl group of carbon number 6-30 of 6-30 carbon atoms
- R 7 2 is an alkyl group having 1 to 4 carbon atoms
- m is an integer of 1 to 4
- a refrigerating machine oil composition comprising at least one compound selected from the group consisting of an organic acid represented by: and (e) a fatty acid amide.
- component (b), component (c), component (d) or component (e) is 0.01 to 5% by weight, based on the total amount of the composition.
- Polybutylene has the following general formula (XX) HH (C-C) I (XIX)
- R 45 has an intramolecular i-ether bond having 1 to 3 carbon atoms.
- R 4 b represents a hydrocarbon group properly has no having an ether bond in the molecule of 3 carbon '20.
- Hori vinyl ether copolymer having a Ru is represented by the structural unit (B) Les, such is identical R 4 6 of polymer [was However, units and R 45 constituent structural unit (a) (B). 6.
- the present invention is simply referred to as “the present invention”. And power.
- mineral oil and / or synthetic oil are used as the base oil.
- This mineral oil or synthetic oil may be any oil that is generally used as a base oil for refrigerating machine oil, and is not particularly limited, but the kinematic viscosity at 40 ° C is 2 to 500 mm 2 Z s, In particular, those in the range of 5 to 200 mm 2 / s, especially 10 to 100 mm 2 / s are suitable.
- the pour point which is an indicator of the low-temperature fluidity of this base oil, is desirably below 10 ° C:
- Mineral oils include, for example, paraffinic mineral oils, naphthenic mineral oils, and medium base mineral oils.
- Examples of the synthetic oils include oxygen-containing synthetic oils and hydrocarbon-based synthetic oils.
- the oxygen-containing synthetic oils include synthetic oils containing ether groups, ketone groups, ester groups, carbonate groups, hydroxy groups, etc. in the molecule, and heteroatoms ( S, P, F, C 1, Si, ⁇ , etc.) synthetic oils, such as (1) polyether, (2) polyol ester, (3) polyalkylene glycol, (4) polyester, and (4) carbonate derivatives. , 6poly ⁇ terketone, 7fluorinated oil, etc.
- the oxygen-containing synthetic oil will be described in detail at the end.
- hydrocarbon-based synthetic oil examples include an oil-based polymer such as polyolefin, alkylbenzene, and alkylnaphthalene.
- the mineral oil may be used singly or in combination of two or more as a base oil.
- the synthetic oil may be used alone or in combination of two or more. Or one or more mineral oils You may use combining one or more types of oil.
- Synthetic oils are preferred over mineral oils, but oxygen-containing synthetic oils are particularly preferred because they have good compatibility with Freon refrigerants such as R-134a and have excellent lubricating performance.
- polyvinyl ether, polyol ester, and polyalkylene dalicol are preferred.
- component (a) is a partial ester of a polyhydric alcohol and monthly fatty acid, the effect of reducing the friction in terms of volume resistivity, 3 or 4-valent polyhydric alcohol And partial esters of fatty acids having 12 to 24 carbon atoms are preferred:
- tetrahydric polyhydric alcohol examples include trimethylo-luetane, trimethylolpropane, glycerin, erythritol, and gentaerythritol. Is preferable, and glycerin is particularly preferable.
- the fatty acid having 12 to 24 carbon atoms may be linear or branched, and may be saturated or unsaturated.
- a linear saturated fatty acid specifically, diphosphate, tridecylic acid, Examples thereof include myristic acid, hentadecylic acid, amino acid, noremitic acid, margaric acid, stearic acid, nonadecylic acid, arachinic acid, behenic acid, and lignoceric acid.
- Specific examples of the linear unsaturated fatty acids include lindelic acid, 5-lauroleic acid, zzudic acid, myristrenic acid, zomonomalic acid, petroselinic acid, oleic acid, elaidic acid, and codonic acid. , Erucic acid, and seracoleic acid.
- branched saturated fatty acids specifically, various methyl decanoic acids, various propyl nonanoic acids, various methyl dodecanoic acids, various propyl denic acids, Various methyltridecanoic acids, various methyltetradecanoic acids, various methylpentadecanoic acids, various ethylethyltradecanoic acids, various methylhexadecanoic acids, various bromopropyltradecanoic acids, various ethylhexadenic acids, various methylbutadenic acids, various methyl acids Butyltetradecanoic acid, various methyloctadecanoic acids, various ethyloloctadecanoic acids, various methylnonadecanoic acids, various ethyloloctadecanoic acids, various methyleicoic acids, various propyloctadecanoic acids, various propyloctadecanoic acids, various methyldocosa
- branched unsaturated fatty acids 5-methyl-2-undeceneic acid, 2-methyl-2-dodecenoic acid, 5-methyl-2-tridecenoic acid, 2-methyl-9-octadedecenoic acid, 2-ethyl-1-9-octadecene Acids, 2-propyl-19-octadecenoic acid, 2-methyl-12-eicosenoic acid, and the like.
- fatty acids having 12 to 24 carbon atoms there are stearic acid, oleic acid, and 16-methylheptadecanoic acid (isostearic acid). Which is preferred.
- a monocarboxylic acid ester, a dicarboxylic acid ester or a mixture thereof is preferable.
- preferable partial esters of fatty acids of polyhydric alcohols include glycerin monolate, glycerin dioleate, glycerin monostearate, glycerin distearate, glycerin monoisostearate, and glycerin dimonoisostearate. It can be mentioned as.
- the above component (a) may be used alone or in combination of two or more.
- the amount of the component (a) is (). 0 to 5% by weight based on the total amount of the composition. If the amount is too small, the object of the present invention is not sufficiently exhibited. If the amount is too large, the effect is not improved for the amount, and the solubility in the base oil decreases.
- the preferred amount is in the range of 0.1 to 2% by weight.
- the acidic phosphoric acid ester of the component (b) constituting the lubricating oil composition for metal working of the present invention is represented by the following general formula (I) or (II)
- R 1 and R 2 represent an alkyl group, an alkenyl group, an alkylaryl group and an arylalkyl group having 4 to 30 carbon atoms, which may be the same or different.
- R 3 and R 4 represent an alkyl group, an alkenyl group, an alkylaryl group or an arylalkyl group having 4 to 30 carbon atoms, which may be the same or different.
- the orthophosphate is a mixture of the diester of the general formula (I) and the monoester of the general formula (II). Specifically, for example, 2-ethylhexyl phosphide phosphate, ethynoleic acid phosphate, butynoleic acid phosphate, oleinoleacid phosphate, tetracosinoleacid phosphate, isodesyl acid phosphate, and laurate acid phosphate , Tridecinoleic acid phosphate, stearyl acid phosphate, isostearyl acid phosphate, and oleinoleic acid phosphate.
- phosphite examples include dibutyl hydrogen phosphite, dilaurino reno, hydro phosphite, dioleno reno, hydro gen 'phosphite, distearyl hydrogen phosphite, and diphenyl hydrogen phosphite. And the like.
- acidic phosphates for example, 2-ethylhexyl acid phosphate, stearyl acid phosphate, oreile acid And the like.
- R represents an alkyl group or alkenyl group having 3 to 30 carbon atoms, an aryl group or an arylalkyl group having 6 to 30 carbon atoms, or a hydroxyalkyl group having 2 to 30 carbon atoms.
- n represents 1, 2 or 3.
- the plurality of Rs may be the same or different.
- the alkyl group or alkenyl group having 3 to 30 carbon atoms in R in the general formula (IV) may be any of linear, branched and cyclic.
- examples of the mono-substituted amines include ptyramine, pentylamine, hexylamine, cyclohexylamine, octylamine, laurylamine, stearylamine, oleylamine, benzilamine, monoethanolamine, monoflouanolamine.
- examples of disubstituted amines include dibutylamine, dipentylamine, dihexylamine, dicyclohexynoleamine, dioctylamine, dilaurinoleamine, distearylamine, dioleylamine, dibenzylamine, stearyl 'monoethanolamine.
- Decyl monoethanolamine, hexinole monobrono, norlamine, benzinole monoethanolamine, feninole monoethanolamine, trinole monoblova You can list Nord and others.
- Examples of tri-substituted amines include triptylamine, tribentilamine, trihexynoleamine, tricyclohexynoleamine, trioctylamine, trilaurylamine, tristearylamine, trioleylamine. , Tribenzylamine, Jiorail * Monoe Tino-monoreamin.
- the component (b) may be used alone or in combination of two or more.
- the amount of the component (b) is 0.1 to 1% by weight based on the total amount of the composition. If the amount is too small, the object of the present invention is not sufficiently exerted. If the amount is too large, the effect is not improved, and the solubility in the base oil is reduced. The amount ranges from 0.0: _3 to 0.05% by weight.
- the refrigerating machine oil composition of the present invention may contain, if necessary, various known additives, for example, extreme pressure agents such as tritaresiphospholates; phenolic and amine antioxidants; and phenylglycidyl ether; Acid scavengers such as epoxy compounds such as xenoxide and epoxidized soybean oil; copper deactivators such as benzotriazole and benzotriazole derivatives; defoaming such as silicone oil and fluorinated silicone oil Agents and the like can be appropriately compounded.
- extreme pressure agents such as tritaresiphospholates
- phenolic and amine antioxidants such as phenolic and amine antioxidants
- phenylglycidyl ether Acid scavengers such as epoxy compounds such as xenoxide and epoxidized soybean oil
- copper deactivators such as benzotriazole and benzotriazole derivatives
- defoaming such as silicone oil and fluorinated silicone oil Agents and
- the refrigerant used in the refrigerator to which the refrigerator oil composition of the present invention is applied is, for example, a nitro, hydrofluorocarbon, chlorofluorocarbon, nitrofluorocarbon, ether, carbon dioxide or ammonia-based refrigerant.
- the power at which the refrigerant is used Among these, a fluorocarbon-based refrigerant with a high opening is preferable.
- This c Examples of the fluorocarbon-based refrigerants at the inlet include 1,1,1,2-tetrafluoroethane (R134a), difluoromethane (R32), pentafluoroethane (R125) and 1,1,1.
- R143a One trifluorethane (R143a) is preferred, and these may be used alone or in combination of two or more. These hydrofluorocarbons have no risk of destruction of the ozone layer and are preferred as refrigerants for compression refrigerators.
- the mixed refrigerant include a mixture of R32, R125, and R134a having a weight ratio of 23:25:52 (hereinafter, referred to as R407C).
- a mixture of quantitative ratios of 25:15:60, a mixture of R32 and R125 in a weight ratio of 50:50 (hereinafter referred to as R410A), R32 and R1 Mixture of weight ratio with 25:45:55 (hereinafter referred to as R41 () B), weight ratio of R] 25, R1.43a and R13.4a 44 : A mixture of 5 2: 4 (hereinafter referred to as R404A), the weight of R125 and R143a! : A mixture having a ratio of 50:50 (hereinafter referred to as R 5 () 7).
- Bolivine polyester examples include, for example, a general formula (V)
- R 5 to R 7 each represent a hydrogen atom or a hydrocarbon group having 1 to 8 carbon atoms, which may be the same or different, and R 8 is a divalent having 1 to 10 carbon atoms.
- R 9 is a hydrocarbon group having 1 to 20 carbon atoms
- a is an average thereof. Value indicates the number of 0 ⁇ 1 0, R 5 ⁇ R 9 may be made different respectively be the same for each structural unit, also in the case where R 8 O is plural, the plurality of R 8 ⁇ even identical May be different :
- R 1 () to R 1 ° each represent a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, which may be the same or different;
- a poly (vinyl ether) compound (2) comprising a block or a random copolymer having the structural unit represented by) is also used.
- a polyvinyl ether compound (3) composed of a mixture of the above polyvinyl ether compound ( ⁇ ) and the polyvinyl ether compound (2) can also be used.
- R 5 to R 7 in the general formula (V) each represent a hydrogen atom or a hydrocarbon group having 1 to 8, preferably 1 to 4 carbon atoms.
- hydrocarbon groups are specifically alkyl groups such as methyl group, ethyl group, n-propyl group, isopropyl group, various butyl groups, various hentyl groups, various hexyl groups, various butyl groups, and various octyl groups.
- cyclobentyl group cyclohexyl group, various methylcyclohexyl groups, various ethylcyclohexyl groups, various dimethyl groups
- Cycloalkyl groups such as cyclohexyl group, phenyl group, various methylphenyl groups, various ethylphenyl groups, aryl groups of various dimethylphenyl groups, benzyl groups, various phenylethyl groups, various methylbenzyl groups
- R 5 to R 7 a hydrogen atom is particularly preferable.
- R 8 in the general formula (V) contains a divalent hydrocarbon group having 1 to 10 carbon atoms, preferably 2 to 10 carbon atoms, or a divalent ether-bonded oxygen group having 2 to 20 carbon atoms.
- hydrocarbon group means a divalent hydrocarbon group having 1 to 10 carbon atoms, specifically, a methylene group; an ethylene group; a phenylethylene group; a 1,2-bromoylene group; 1,2-bromoylene group; 1,3-propylene group; various butylene groups; various pentylene groups; various hexylene groups; various hebutylene groups; various octylene groups; various nonylene groups; various decylene groups Alicyclic groups having two binding sites on alicyclic hydrocarbons such as a valent aliphatic group, cyclohexane; methylcyclohexane; ethylcyclohexane; dimethinolesic hexane
- aliphatic groups having 2 to 4 carbon atoms are particularly preferred.
- Specific examples of the divalent ether-linked oxygen-containing hydrocarbon group having 2 to 20 carbon atoms include a methoxymethylene group; a methoxyethylene group; a methylethylene group; and a 1,1-bismethoxymethylethylene group.
- —Bismethoxymethylethylene group; ethoxymethylethylene group (2-meth (Xiethoxy) methyl ethylene group; (1-methyl-'2-methoxy) methyl ethylene group and the like can be preferably exemplified.
- a represents the number of repetitions of R 8 ⁇ , and the average thereof is a number in the range of 0 to 10, preferably 0 to 5.
- the plurality of R 8 ⁇ may be the same or different.
- R 9 in the general formula (V) represents a hydrocarbon group having 1 to 20 carbon atoms, preferably 1 to 10 carbon atoms.
- the hydrocarbon group include a methyl group and an ethyl group.
- Examples include a phenyl group, various phenylpropyl groups, and an arylalkyl group of various phenylbutyl groups.
- the polyvinyl ether compound (1) has a structural unit represented by the above general formula (V), and the number of repetitions (degree of polymerization) may be appropriately selected according to a desired kinematic viscosity. Good. Further, the polyvinyl ether-based compound preferably has a carbon / oxygen molar ratio in the range of 3.5 to 7.0. If the molar ratio is less than 3.5, the hygroscopicity may increase, and if it exceeds 7.0, the compatibility with the refrigerant may decrease.
- the poly (vinyl ether) compound (2) is represented by the general formula (V).
- R ] 0 to R ] 13 represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, which may be the same or different.
- examples of the hydrocarbon group having 1 to 20 carbon atoms include the same as those exemplified in the description of R 9 in the general formula (V).
- R 10 to R 13 may be the same for each structural unit or may be different from each other.
- C has a structural unit represented by the general formula (V) and a structural unit represented by the general formula (VI).
- the degree of polymerization of the poly (vinyl ether) compound (2) composed of a block or random copolymer may be appropriately selected according to the desired kinematic viscosity. / oxygen molar ratio of 3. is preferred in the range of 5-7, 0. If the molar ratio is less than 3.5, the hygroscopicity may increase, and if it exceeds 7.0, the compatibility with the refrigerant may decrease.
- the polybutyl ether compound (3) is a mixture of the above-mentioned poly (vinyl ether) compound (1) and the above-mentioned poly (vinyl ether) compound (2), but the mixing ratio is not particularly limited:
- the polyvinyl ether compounds (1.) and (2) used in the present invention are prepared by polymerization of the corresponding vinyl ether monomers, and the corresponding hydrocarbon monomer having an olefinic double bond and the corresponding vinyl ether compound. It can be produced by copolymerization with a monomer.
- the vinyl ether monomer which can be used here is represented by the following general formula (VII) R ° R '
- the vinyl ether-based monomer includes various compounds corresponding to the above-mentioned polyvinyl ether-based compounds (1) and (2).
- butyl ether monomers can be produced by a known method.
- hydrocarbon monomer having an olefinic double bond is represented by the following general formula (VIII)
- the monomer is, for example, ethylene
- Examples include arylene, various butenes, various henthenes, various hexenes, various hebutenes, various otatens, diisobutylene, triisobutylene, styrene, and various alkyl-substituted styrenes.
- polyvinyl ether compound used in the present invention those having the following terminal structure, that is, one terminal of which is represented by the general formula (IX) or (X)
- R 14 to R 10 each represent a hydrogen atom or a hydrocarbon group having 1 to 8 carbon atoms; R 14 to R] 6 may be the same or different;
- R 1 9 to R 2 2 each shows a hydrogen atom or a hydrocarbon group carbon number 1 ⁇ 20, R 1 9 ⁇ R 2 2 is good ⁇ R 1 7 is also the same with or different from each other carbon number 1
- b is a hydrocarbon group having an average value of Indicates the number from 0 to 10 and when there are multiple R 17 ⁇
- 1 7 ⁇ may be the same or different.
- R 2 3 ⁇ R 2 5 each represent a hydrocarbon group having 1 to 8 hydrogen atoms or carbon atoms, R 2 3 ⁇ R 2 5 may be the same as or different from each other, R
- R 2 8 to R 3 1 are each indicates hydrogen atom or a hydrocarbon group having a carbon number of 1 ⁇ 20, R 2 8 ⁇ R 3 1 are each the same - it may also be different even Rere.
- R 26 is a divalent hydrocarbon group having 1 to 1.0 carbon atoms or a divalent ether-bonded oxygen-containing hydrocarbon group having 2 to 20 carbon atoms, and R 27 is a hydrocarbon group having 1 to 20 carbon atoms. group, the average value of c Waso is () represents the number of 0, when R 2 6 O there are multiple, multiple R
- R 3 3 H (Wherein, R 3 2 to R 34 each represent a hydrocarbon group having 1 to 8 hydrogen atoms or carbon atoms, they may be the same or different.)
- polybutyl ether compounds are particularly suitable as the base oil of the refrigerator oil composition of the present invention.
- One of the terminals has a structure represented by the general formula (IX) or (X), and the other terminal has a structure represented by the general formula (XI) or (XII).
- R 5 to R 7 are both hydrogen atoms, a is a number of 0 to 4, R 8 is a divalent hydrocarbon group having 2 to 4 carbon atoms, and R 9 is a hydrocarbon group having 1 to 2 () carbon atoms. some stuff.
- R 5 to R 7 in the general formula (V) are both hydrogen atoms, a is a number of 0 to 4, R 8 is a divalent hydrocarbon group having 2 to 4 carbon atoms, and R 9 is A hydrocarbon group having 1 to 20 carbon atoms.
- R 7 are both hydrogen atoms
- a is a number of 0 to 4
- R 8 is a divalent hydrocarbon group having 2 to 4 carbon atoms
- R 9 is a hydrocarbon group having 1 to 20 carbon atoms.
- R 5 to R 7 in the general formula (V) are each a hydrogen atom, a is a number of 0 to 4, R 8 is a divalent hydrocarbon group having 2 to 4 carbon atoms, and R 9 Is a hydrocarbon group having 1 to 20 carbon atoms.
- R 3 5 ⁇ R 3 7 are each an hydrocarbon group having 1 to 8 hydrogen atoms or carbon atoms and may be the same with or different from each other
- R 38 and R 40 are each carbon represents a number 2-1 0 divalent hydrocarbon group and may be the same or different to gargle they were
- R 3 9 and R 4 1 are each a hydrocarbon group of ⁇ carbon atoms and 1 0, they may be the same with or different from each other, d and e in average each represent a number between 0 and 1 0, they may be the same with or different from each other, also a plurality of R 3 8 ⁇
- a plurality of R 38 ⁇ ⁇ may be the same or different, and when there are a plurality of R 40 ⁇ , a plurality of R 40 Os may be the same or different.
- R 42 represents a hydrocarbon group having from 8 to 8 carbon atoms.
- R 43 represents an alkyl group having 1 to 3 carbon atoms
- R 44 represents a hydrocarbon group having 1 to 8 carbon atoms.
- a holibul ether compound comprising a homopolymer or copolymer of an alkyl vinyl ether having a structure represented by the following formula can also be used.
- R 4 5 is ether formation in the molecule of 1 to 3 carbon atoms'
- R 46 represents a hydrocarbon group having 3 to 20 carbon atoms and having no ether bond in the molecule.
- R 4 6 In represented by polyvinyl ether copolymer [However by having a structural unit (B), R 4 6 Les such identical,] is preferably especially of R 4 5 and the structural unit (A) (B) R 45 is an alkyl group having 1 to 3 carbon atoms used, R 4 6 homopolymers and R 4 5 in the case when there is more preferred, R 4 5 is Echiru group of the alkyl group of 3-20 carbon atoms There methyl or Echiru group, when R 4 6 is a copolymer of the alkyl group 3-6 carbon atoms preferably, among them R 4 5 is Echiru group, a copolymer in the case of R 46 is an isobutyl group In this case, the molar ratio of the structural unit (A) to the structural unit (B) is preferably 95: 5 to 50:50, more preferably 95: 5 to 70:30. : The copolymer may be in a random form or a block form.
- the above-mentioned polybutyl ether compound can be produced by subjecting the above-mentioned monomer to radical polymerization, cationic polymerization, radiation polymerization, or the like.
- a polymer having a desired viscosity can be obtained by performing polymerization using the following method using the following method.
- Initiation of the polymerization is based on a blend of water, alcohols, phenols, acetates or vinyl ethers and adducts of carboxylic acids with brenstead acids, Lewis acids or organometallic compounds.
- the blended acids include hydrofluoric acid, hydrochloric acid, hydrobromic acid, hydroiodic acid, nitric acid, sulfuric acid, trichloroacetic acid, trifluoroacetic acid and the like.
- Lewis acids include boron trifluoride, aluminum trichloride, aluminum tribromide, tin tetrachloride, zinc dichloride, and ferric chloride. Among these Lewis acids, boron trifluoride is particularly preferred. Is preferred.
- the organometallic compound include, for example, acetyl aluminum chloride, acetyl aluminum chloride, and dimethyl zinc.
- any combination of water, alcohols, phenols, acetals, or adducts of vinyl ethers with carboxylic acid can be selected in combination with these.
- the alcohols include methanol, ethanol, and fluoronodone.
- unsaturated aliphatic alcohols having 3 to 10 carbon atoms such as saturated aliphatic alcohols having 1 to 20 carbon atoms and aryl alcohol.
- liponic acid examples include acetic acid; bronionic acid; n-butyric acid; isobutyric acid; n-valeric acid; isovaleric acid; Pivalic acid; ⁇ -cubic acid; 2,2-dimethylbutyric acid; 2-methylvaleric acid; 3-methylvaleric acid; 4-methylvaleric acid; enanthic acid; 2-methylcaproic acid; Power bronic acid; 2-n-propyl valeric acid; n-nonanoic acid; 3,5,5-trimethylcaproic acid; caprylic acid; pentadecanoic acid.
- the vinyl ethers may be the same as those used for the polymerization, or may be different.
- the adduct of the vinyl ether and the carboxylic acid is mixed and reacted at a temperature of about 0 to 10. It can be separated by distillation or the like and used for the reaction, but can also be used for the reaction without separation.
- Polymerization initiation terminals of the polymer are those in which hydrogen is bonded when water, alcohols, or fuanols are used, and one in which one alkoxy group is eliminated from hydrogen or the used acetates when acetals are used.
- an adduct of a vinyl ether and a carboxylic acid is used, the adduct of the vinyl ether and the carboxylic acid is deemed to have the alkyl carbonyl group derived from the carboxylic acid moiety eliminated.
- the terminating terminal is acetal, olefin, or aldehyde.
- the terminating terminal is acetal, olefin, or aldehyde.
- ⁇ S-The terminal of the polymer thus obtained can be converted into a desired group by a known method.
- This desired group can include, for example, residues such as saturated hydrocarbons, ethers, alcohols, ketones, nitriles, amides, etc., but also the residues of saturated hydrocarbons, ethers and alcohols. preferable.
- the polymerization of the vinyl ether monomer represented by the general formula ( ⁇ ) can be started at a temperature of 80 to 150 C, although it depends on the types of raw materials and initiators. 0 to 50. It can be performed at temperatures in the range of C. The polymerization reaction is completed in about 10 seconds to 10 hours after the start of the reaction.
- This polymerization reaction is usually performed in the presence of a solvent.
- the solvent is not particularly limited as long as it dissolves the required amount of the reaction raw materials and is inert to the reaction, and is not particularly limited. Examples thereof include hydrocarbons such as hexane, benzene, and toluene, and ethyl ether, 1,2. — Ether solvents such as dimethoxetane and tetrahydrofuran can be suitably used.
- the polymerization reaction can be stopped by adding an alcohol. After completion of the polymerization reaction, the desired polybutylene compound having the structural unit represented by the general formula (V) can be obtained by performing ordinary separation and purification methods as necessary.
- the poly (vinyl ether) compound used in the present invention preferably has a carbon Z oxygen molar ratio in the range of 3.5 to 7.0, but by adjusting the carbon Z oxygen molar ratio of the raw material monomer. It is possible to produce a polymer having the molar ratio in the above range. That is, if the ratio of the monomer having a large carbon Z oxygen molar ratio is large, the polymer having a large carbon Z oxygen molar ratio
- a vinyl ether monomer and a hydrocarbon monomer having an olefinic double bond are copolymerized, a polymer having a carbon / oxygen molar ratio larger than that of the vinyl ether monomer can be obtained.
- the ratio can be adjusted by the ratio of the hydrocarbon monomer having a olefinic double bond and the number of carbon atoms thereof.
- polyol ester of the above (1) examples include a carboxylic acid ester of a polyhydric hydroxy compound containing at least two hydroxyl groups.
- a carboxylic acid ester of a polyhydric hydroxy compound containing at least two hydroxyl groups examples include a carboxylic acid ester of a polyhydric hydroxy compound containing at least two hydroxyl groups.
- R 4 7 is a hydrocarbon group
- R 48 is a hydrogen atom or a carbonitride hydrocarbon group having 1 to 22 carbon atoms
- f is an integer of 2 to 6
- a plurality of OCOR 48 it becomes different even in the same Good
- R 4 7 is a hydrocarbon group, which may be linear or branched, preferably an alkyl group from 2 to 1 0 carbon atoms.
- R 48 is a hydrogen atom or a hydrocarbon group having 1 to 22 carbon atoms, preferably an alkyl group having 2 to 16 carbon atoms.
- the boryl ester represented by the general formula (XXI) is represented by the general formula (XXII) R 47 (OH) f
- ⁇ hepatic acid or its ester diacid halide represented by Examples of the polyhydric alcohol represented by the above general formula ( ⁇ ) include ethylene glycol, pyrene glycol, butylene glycol, neopentinole glycol, trimethylene noreethane, and trime. Examples include tyronolevronone, glycerin, pentaerythritol, diventaerythritol, and sorbitol.
- carboxylic acids represented by (XXIII) include, for example, propionic acid, butyric acid, vivalic acid, valeric acid, cabronic acid, heptanoic acid, 3-methylhexanoic acid, 2-ethylhexanoic acid, and cabrylic acid , Pelargonic acid, cabric acid, lauric acid, myristic acid, and palmitic acid.
- R 4 9 is a hydrogen atom, an alkyl group having a carbon number] - 1 0, aliphatic carbon number 1-1 0 having Ashiru groups or bonds unit '2-6 carbons number 2-1 0 carbonized hydrogen radical
- R 50 is an alkylene group having 2 to 4 carbon atoms
- R 5 1 is hydrogen atom, an alkyl group or Ashiru group with carbon number 2-1 0 carbon number] ⁇ 1
- h is an integer from 1 to 6 g indicates a number that makes the average value of gXh 6 to 80
- R 4 9, the alkyl group in R 5 1 is a linear, branched, it may be any of circular.
- Specific examples of the alkyl group include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, various butyl groups, various ventil groups, various hexyl groups, various heptyl groups, various octyl groups, various nonyl groups, Examples include various decyl groups, cyclopentyl groups, and cyclohexyl groups. If the carbon number of the alkyl group exceeds 10, the compatibility with the refrigerant may be reduced, and phase separation may occur.
- Preferred alkyl groups have 1 to 6 carbon atoms.
- R 4 9, alkyl moieties of said Ashiru group in R 5 1 is a linear, branched, may be any of circular.
- Specific examples of the alkyl group portion of the acyl group include the various groups having 1 to 9 carbon atoms mentioned above as specific examples of the alkyl group. When the carbon number of the acyl group exceeds 10, the compatibility with the refrigerant may be reduced and phase separation may occur.
- Preferred acyl groups have 2 to 6 carbon atoms.
- R 4 9 and R 5 1 are both an alkyl group or Ashiru group
- R 4 9 and R 5 1 may be the same with or different from each other.
- R 4 9 is an aliphatic hydrocarbon group with carbon number 1-1 0 having six binding sites 2
- the aliphatic hydrocarbon group may be filed also be of chain ones cyclic.
- the aliphatic hydrocarbon group having two bonding sites include an ethylene group, a propylene group, a butylene group, a pentylene group, a hexylene group, a heptylene group, an octylene group, a nonylene group, a decylene group, a cyclopentylene group, and a cyclohexane group.
- Xylene groups and the like can be mentioned.
- the aliphatic hydrocarbon group having 3 to 6 bonding sites include, for example, trimethylolpropane, glycerin, pentaerythritol, sonorebitonole;
- R 5 0 in is an alkylene group having 2 to 4 carbon atoms, and Okishiarukiren group of the repeating unit, Okishiechiren group, O key Examples include a cyprohylene group and an oxybutylene group.
- the oxyalkylene group in one molecule may be the same, or two or more oxyalkylene groups may be contained, but those having at least oxypropylene units in one molecule are preferable, and especially oxyalkylene groups are preferable. Those containing 50 mol% or more of oxypropylene units in the alkylene unit are preferred.
- a random copolymer or a block copolymer may be used.
- Said h in the general formula (XXIV) in an integer of 1 to 6 is determined in accordance with the number of binding sites of R 4 9.
- R 4 9 is an alkyl group or Ashiru group
- h is 1, when R 4 9 is a bond site 2, 3.4, 5 and aliphatic hydrocarbon group having six, h, respectively 2, 3, 4, 5, and 6.
- g is a number such that the average value of gXh is 6 to 80. If the average value of gXh is out of the above range, the object of the present invention may not be sufficiently achieved.
- the polyalkylene glycol represented by the general formula (XXIV) includes a polyalkylene glycol having a hydroxyl group at a terminal, and the content of the hydroxyl group is 50 mol with respect to all terminal groups. /. As long as the ratio is as follows, it can be suitably used even if it is contained. When the content of the hydroxyl group exceeds 50 mol%, the hygroscopicity increases, and when the viscosity index decreases, it is increased.
- Examples of the polyalkylene glycol represented by the general formula (XXIV) include boroxypropylene propylene glycol dimethyl ether, polyoxyethylene polyoxypropylene glycol monomethyl ether, and polyoxyethylene glycol propylene glycol. Athenole, borooxy ethylene boroxyl brobylene glycol monobutyl ether, and polyoxypropylene glycol monobutyl ether, and polyoxyethylene Cypropylene diaryl acetate is preferred in terms of economy and effect.
- R 3 ⁇ 4 2 is an alkylene group having 1 to 1 0 carbon atoms, scale 5 3. Showing an alkylene group or Okisaarukiren group of carbon number 4-20 carbon atoms 2 to 0) is represented by Aliphatic polyester derivatives having a structural unit and a molecular weight of 300 to 2,000 can be mentioned.
- R 52 in the general formula (XXV) represents an alkylene group having 1 to 10 carbon atoms.
- methylene, ethylene, propylene, ethylmethylene, 1,1-dimethylethylene, 1, Examples include 2-dimethylethylene group, n-butylethylene group, isobutylethylene group, 1-ethylenol 2-methylethylene group, 1-ethyl-11-methylethylene group, trimethylene group, tetramethylene group and pentamethylene group. It is preferably an alkylene group having 6 or less carbon atoms.
- R 5 3 represents a Okisaarukiren group ⁇ alkylene group or a carbon number 4-20 having 2 to 10 carbon atoms.
- Alkylene down groups specific examples of the specific R 52 (excluding methylene group) and a similar, preferably an alkylene group having 2 to 6 carbon atoms, and Okisaarukire emissions radical Specifically, 3 —Oxa-1,1,5-pentylene group; 3,6-dioxer 1,8-octylene group; 3,6,9-1 Trioxa-1,1,1-didecylene group; 3-oxa-1,1,4-dimethyl group 1,5-pentylene group; 3,6-dioxa-1,4,7-trimethyl-1,8-octylene group; 3,6,9-trioxa-l-, 4,7,1-di-tetramethyl-l, l-l-l-decylene group; 3-oxa-l, 4-detynolee 1,5-benzylene group; 3,6-dioxer 1,4, 7-triethyl-1,8-otatilene group; 3,6,9-1 trioxa 1,4 to 10-t
- 11-Pindecylene group 3-oxa-1,1, ⁇ , 4,4-tetramethyl-1,5-benthylene group; 3,6-dioxer 1,1,4.4,7,7-hexamethyl- ⁇ , 8-octaylene group; : 3,6,9 Trioxa 1,1,4,4,7,7,10,10—Otatamethyl-1,11-Indecylene group; 3-Oxa-1,2,4,5-tetramethyl 1,5-pentylene group; 6-dioxer 1,2,4.5,7,8-hexamethyl-1,8-octylene group; 3,6,9-trioxa-1,2,4,5, 7,8,10,1 1-octamethyl-1,1-didecylene group; 3-oxo-1-methyl-1,5, nthylene £; 3-oxa] —ethynole-1,5-benthylene group; 3-oxa_1,2-dimethinolate 5-Hentylene group; 3-ox
- 3 may be the same or different for each structural unit.
- the aliphatic polyester derivative represented by the general formula (XXV) preferably has a molecular weight (measured by GPC) of 300 to 2,000. If the molecular weight is less than 300, the kinematic viscosity is too small, and if it exceeds 2,000, it becomes waxy, and both are not preferable as refrigerating machine oils.
- R 54 and R 56 each represent a hydrocarbon group having 30 or less carbon atoms or a hydrocarbon group having an ether bond having 2 to 30 carbon atoms, which may be the same or different, R 5 5 is alkylene down group of 2 to 24 carbon atoms, i is 1-1 00 integer, j is an integer from 1 to 1 0.)
- R 54 and R 5 6 are each a hydrocarbon group having an ether bond having 3 0 or less hydrocarbon group or a carbon number of 2 to 30 carbon atoms, of 30 or less carbon atoms
- the hydrocarbon group include methyl group, ethyl group, n-propyl group, isopropyl group, various butyl groups, various pentyl groups, various hexyl groups, various heptyl groups, various octyl groups; various nonyl groups; various Decyl groups; various decyl groups; various dodecyl groups, various tridecyl groups, various tetradecyl groups, various pentadecyl groups, various hexadecyl groups, various heptadecyl groups, various octadecyl groups, various nonadecyl groups, various eicosyl groups, and other aliphatic groups.
- Hydrocarbon group cyclohexyl group, 1-cyclohexenyl group, methylcyclohexyl group, dimethylcyclohexynole group, decahydr Alicyclic hydrocarbon groups such as phthyl group and tricyclodecanyl group, aromatic hydrocarbon groups such as phenyl group, various tolyl groups, various xylyl groups, mesityl groups, various naphthyl groups, benzyl groups, methylbenzyl groups, Phenylethyl group, 1-methino I / 1-1 phenylenoethyl group, styryl group, An araliphatic hydrocarbon group such as a cinnamyl group can be exemplified.
- Examples of the hydrocarbon group having an ether bond having 2 to 30 carbon atoms include a compound represented by the general formula (XXVII)
- R 5 7 is an alkylene group having 2 or 3 carbon atoms (ethylene group, propylene emissions group, a trimethylene group)
- R 58 is aliphatic 2 to 8 carbon atoms, alicyclic or aromatic hydrocarbon group (the same groups as those mentioned in specific examples of R 54 and R 5 6)
- k is:! Indicates an integer of ⁇ 20. ]
- Da recall ether group include ethylene da recall monomethyl methylol Honoré ether 3 ⁇ 4, ethylene glycol one Honoré monobutyl Honoré ether 1 5, Jechi Renguri co one / Remono n- butyl Honoré ether Honoré Si, triethylene triglycidyl Examples include: propylene monoethyl ether group, bromophenol monomethyl ether group, pyrene glycol monobutyl ether group, diphenyl phenol glycol monoethyl ether 'group, and tripropylene glycol mono n-butyl ether group. be able to. For R 5 4 and R 5 ⁇ , Of these, .eta.
- R 5 5 is an alkylene group having 2 to 24 carbon atoms, an ethylene group and specific examples
- the polycarbonate represented by the general formula (XXVI) has a molecular weight (weight average molecular weight) of S 300 to 3,000, preferably 400 to 1,500. If the molecular weight is less than 300, the kinematic viscosity is too small to be suitable as a lubricating oil. Conversely, if the molecular weight exceeds 3, () () 0, it becomes in the form of a box, making it difficult to use as a lubricating oil. .
- This polycarbonate can be produced by various methods, but is usually produced using a carbonate-forming derivative such as diester carbonate or phosgene and an aliphatic dihydric alcohol as raw materials.
- a general polycarbonate production method may be used, and generally according to a transesterification method or a phosgene method.
- R 59 and R 60 each represent an aliphatic, alicyclic, aromatic or araliphatic hydrocarbon group having 1 to 20 carbon atoms, and they may be the same or different. May have become, the 1 6 1 and 13 ⁇ 4 6 2 are each an ethylene group or isobutanol propylene group and may be the same with or different from each other, p and q are each ⁇ 1 0 0 Number of Is shown. )
- the glycol ether carbonate represented by the following formula can be used.
- formula (XXVI II) specific examples of the aliphatic hydrocarbon group for R 5 9 and R 6 (3 is methyl group, Echiru group, n - propyl group, isopropyl group, various butyl groups, various Benchiru Groups, various hexyl groups, various heptyl groups, various octyl groups; various nonyl groups; various decyl groups; various pentadecyl groups; various dodecyl groups, various tridecyl groups; various tetradecyl groups; various pentadecyl groups; various hexadecyl groups Groups, various heptadecyl groups, various octadecyl groups, various nonadecyl groups, various eicosyl groups, etc.
- alicyclic hydrocarbon group examples include a cyclohexyl group, a 1-cyclohexeninole group, a methinolecyclo. Hexinole, dimethinolecyclohexyl, decahydronaphthyl, tricyclodecanyl, etc.
- aromatic hydrocarbon examples include phenyl group, various tolyl groups, various xylyl groups, mesityl group, and various naphthyl groups.
- araliphatic hydrocarbon group examples include: Examples include benzyl group, methylbenzyl group, phenylethyl group, styryl group, cinnamyl group and the like.
- glycol ether carbonate represented by the general formula (XXVI II) is obtained by, for example, transesterifying a polyalkylene glycol monoalkyl ether in the presence of an excess of a relatively low-boiling alcohol carbonate.
- XXVI II The glycol ether carbonate represented by the general formula (XXVI II) is obtained by, for example, transesterifying a polyalkylene glycol monoalkyl ether in the presence of an excess of a relatively low-boiling alcohol carbonate.
- any of those described in detail in JP-A-3-149295 can be used.
- a carbonate derivative a compound represented by the following general formula (XXIX): 4 ... (XXIX) o
- R. and R ° 4 each represent an alkyl group having 1 to 15 carbon atoms or a monovalent alcohol residue having 2 to 12 carbon atoms, and they may be the same or different.
- R 6 5 is an alkylene group having 2-1 2 carbon atoms
- r is an integer of 0 to 30.
- R 6 3 and R 6 4 the number 1 to 1 5 carbon atoms, respectively, is preferably an alkyl group or a carbon number from 2-1 2 2-9 carbon atoms, good Mashiku 2-9 a monovalent alcohol residue of scale 6 5 number 2 to 1 2 carbon atoms, preferably an alkylene group.
- r is 0 to 30, preferably an integer of 1 - 30. It is not preferable to use a carbonate ester that does not satisfy the above conditions, because various properties such as compatibility with the refrigerant are inferior.
- alkyl group with carbon number 1-1 5 in R 6 3 and R 6 4 specifically, hexyl methyl group, Echiru group, n- propyl group, n- butyl group, n- pentyl group, a n- Group, n-heptyl group, n-octyl group, n-nonyl group, n-decyl group, n-decyl group, n-dodecyl group, n-tridecyl group, n-tetradecyl group, n-pentadecyl group, isopropyl Group, isobutyl group, tert-butyl group, isopentyl group, isohexyl group, isoheptyl group, isooctyl group, isononyl group, isodecyl group, isopendecyl group, isododecyl group, isotridecyl group, is
- Examples of the dihydric alcohol residue having 2 to 12 carbon atoms include ethylene glycolone; 1,3-brononediolone; propylene glycolonele; 1,4-butanediole; 2—butanediol; 8—methinole 1,3-propanediol; 1,5-ventanyl; neopentylene glycol; 1,6—hexandiol; 2-ethyl-2-methyl-1,3 1,7—Heptanediol; 2—Methynole 1—Four hill 1,3—Prohandiol 1; 2,2—Jetinole 1,3—Propandiol; 1,8—Octandio 1 1,9-nonanediol; 1,10-decanediol; 1,11-dedecanediole; 1,12-dodecanediol; and the like.
- the molecular weight of the carbonate ester is not particularly limited, but those having a number average molecular weight of 200 to 3,000 are preferably used from the viewpoint of further improving the sealing property of the compressor. Those having an average molecular weight of 300 to 2,000 are more preferably used.
- T is 1-8 monohydric alcohol residue
- R 6 8 and R 7 0 are each hydrogen atoms, number 2 0 or less aliphatic carbon, aromatic or araliphatic hydrocarbon radical and may be the same with or different from each other
- R 6 9 is the number 2 0 or less aliphatic carbon, aromatic or Represents an araliphatic hydrocarbon group
- s and u are numbers from 0 to 30
- w is a number from 1 to 8
- X is a number from 0 to 7, and w + x satisfies! Indicates 0 or 1.
- ⁇ represents a mono- to octahydric alcohol residue
- the alcohol having ⁇ as a residue is a monohydric alcohol, for example, methinorea alcohol, ethyl ethyl alcohol, linear or branched Propynole alcohol, linear or branched butyl alcohol, linear or branched pentyl alcohol, linear or branched hexyl alcohol, linear or branched heptyl alcohol, linear or branched octyl alcohol, linear Or branched nonyl alcohol, straight or branched decyl alcohol, straight or branched pentadecyl alcohol, straight or branched dodecyl alcohol, straight or branched tridecyl alcohol, straight or branched tetradecyl alcohol , Straight or branched pentadecyl alcohol, straight or branched hexadecyl alcohol Lumpur, linear or descriptor decyl alcohol branches to the straight
- Linear or branched aliphatic alcohols such as nore, neopentylene glycolonole, tetramethylenedalichol, etc., aromatic alcohols such as catecholone, resonoresino monozole, bisphenenole A, bispheninolegiomonole, etc .; And their partial Terides, etc., as trivalent anocols, such as glycerin; trimethyl-l-l-roban; trimethylol-lurethane; trimethylol butane; linear or branched such as 1,3,5-pentantriol Aromatic alcohols, pyrogallol, methylpyrrole, 5 _ sec — aromatics such as butynolepi, and their partially etherified products as tetrahydric to octahydric alcohols
- aliphatic alcohols such as pentaerythritol, diglycerin, sonolebitan, triglycerin, sonorebitol, dipent
- R 6 ⁇ alkylene group having a carbon number of 2-4 represented by 6 linear may be either branched, specific examples include an ethylene group; propylene group Ethynoleethylene group; 1,1-dimethynoleethylene group; 1,2-dimethylethylene group and the like.
- the number 2 0 or less aliphatic carbon atoms represented by R 6 8 ⁇ R 7 0, aromatic or araliphatic hydrocarbon radical is, for example, a methyl group; Echiru group; a propyl group; Petit Butyl group; octyl group; decyl group; decyl group; laurinole group; myristyl group; balmicyl group; stearyl group and other straight-chain alkyl groups, isopropyl group, isopropyl group, isoamyl group;
- s and u each represent a number from 0 to 30. When s and u exceed 30, the contribution of the ether group in the molecule increases, and the compatibility with the refrigerant, the electrical insulation, It is not preferable in terms of hygroscopicity.
- w is a number from 1 to 8
- X is a number from 0 to 7
- w + X satisfies the relationship of] to 8 and these numbers indicate an average value and are not limited to integers.
- V is 0 or 1. Also s
- w pieces of s, u, v. R 6 8 and R 6 9 may be different from each other in the same, yet X force S 2 or more case, X-number of R 7 0 is respectively They may be the same or different.
- a known method can be employed as a method for producing the polyether ketone represented by the general formula (XXX).
- a method for oxidizing a secondary alkyloxy alcohol with hypochlorite and acetic acid Japanese Patent Application Laid-Open No. H11-26716
- a method of oxidizing a secondary alkyloxy alcohol using zirconium hydroxide and a ketone Japanese Patent Application Laid-Open No. 3-1 671 149 publication
- Japanese Patent Application Laid-Open No. 3-1 671 149 publication Japanese Patent Application Laid-Open No. 3-1 671 149 publication
- fluorinated oil of the above (1) examples include fluorinated silicone oils, fluorinated polyesters, and reaction products of alkynes and varnoquinolevinoles. Alkanes and perfluoro arches
- An example of a reaction product with rubinetether is represented by the general formula (XXXI)
- n an integer of 6 to 20.
- n represents an integer of 1 to 4.
- the alkane represented by the general formula (XXXI) may be linear, branched, or cyclic, and specific examples thereof include n-octane; n-decane; n-dodecane; cyclooctane Cyclododecane; 2,2.4-trimethylbentan; and specific examples of the vinyl quinolone vinyl ether represented by the general formula (XXXII) include half-norelomethino. Levini / Letenoren, No-Fnoleoloeti / Lebininoletel, No
- extreme pressure performance an extreme pressure region
- oily performance oily performance
- Example 1 This is expressed as "Example 1". The same applies to the comparative example and the reference example.
- Material Block // bin A39 () (Aluminum) ZAISI-3135 (Steel) Oil temperature Room temperature
- R 1 34a (Blow-in type)
- Testing machine Sealed block on ring testing machine
- Atmosphere Filled with R134a (0.6MPa)
- Table 1 shows that the refrigerating machine oil composition of the present invention has a synergistic effect of two types of additives in polar performance and oiliness performance.
- the second invention may be simply referred to as “the present invention”.
- mineral oil and 7 or synthetic oil are used as the base oil.
- This mineral oil or synthetic oil is generally used as a base oil for refrigerator oil.
- the kinematic viscosity at 40 ° C is 2 to 50 O mm 2 Zs, especially 5 to 200 mm 2 / s, especially 1 0 ⁇ 1 0 0 mm 2 which is in the range of Z s is preferred.
- the pour point, which is an indicator of the low-temperature fluidity of the base oil, is desirably 110 ° C or less.
- Mineral oils include, for example, balafin mineral oils, naphthenic mineral oils, intermediate mineral oils, and the like, while synthetic oils include oxygen-containing synthetic oils and hydrocarbon synthetic oils.
- the oxygen-containing synthetic oils include synthetic oils containing ether groups, ketone groups, ester groups, carbonate groups, hydroxy groups, etc. in the molecule, and heteroatoms ( S, P, F, CI, Si, N, etc.), which include (1) polyvinyl ether, (2) polyol ester, (3) polyalkylene glycol, (4) polyester, and (4) carbonate. Derivatives, , polyetherketone, 7fluorinated oil, etc., the contents of which are as described in detail in the first invention.
- hydrocarbon-based synthetic oil examples include an oil-based polymer such as polyolefin, alkylbenzene, and alkylnaphthalene.
- the mineral oil may be used singly or in combination of two or more as a base oil.
- the synthetic oil may be used alone or in combination of two or more.
- one or more mineral oils and one or more synthetic oils may be used in combination.
- Synthetic oils are preferred over mineral oils, but oxygen-containing synthetic oils are particularly preferred because they have good compatibility with fluorocarbon refrigerants such as R134a and have excellent lubricating performance.
- polybutyl ether, Polyester and polyalkylene glycol are preferred.
- the contents described for the component (b) in the first invention apply as they are.
- Amines that form amine salts with acidic phosphates are also described in the first invention.
- the component (a) may be used alone or in combination of two or more.
- the amount of the component (a) is from 0.1 to 1% by weight based on the total amount of the composition. /. It is. If the amount is too small, the intended effects of the present invention cannot be sufficiently exerted.If the amount is too large, the effect is not improved for the amount, and the solubility in the base oil decreases. . Preferably, the amount is in the range of 0.003 to 0.05% by weight.
- the kinematic viscosity at C was adjusted to the range of 10 to 200 mm 2 / s (preferably 30 to 100 mm 2 ), and the hydroxyl value was adjusted to the range of 1 () 0 to 30 Omg KOH / g. If you use something
- the above component (b) may be used alone or in combination of two or more.
- the amount of the component (b) is 0.01 to 5% by weight based on the total amount of the composition. If the amount is too small, the intended effects of the present invention cannot be sufficiently exerted. If the amount is too large, the effect is not improved for the amount, and the solubility in the base oil decreases.
- the preferred compounding amount is 0.1 to 2 weight. / 0 range.
- fatty acid of the potassium salt or sodium salt of the component (c) fatty acid those having 12 to 24 carbon atoms can be suitably mentioned.
- the fatty acid having 12 to 24 carbon atoms may be linear or branched, and may be saturated or unsaturated.
- linear saturated fatty acid examples include lauric acid, tridecylic acid, myristic acid, bentadecyl acid, nonoremitic acid, margaric acid, stearic acid, nonadecyl acid, araquinic acid, behenic acid, and lignoceric acid. be able to.
- linear unsaturated fatty acids include lindelic acid, 5-lauric oleic acid, zzudic acid, myristoleic acid, zomaric acid, petroselinic acid, oleic acid, elaidic acid, codeinic acid, and ell. Strength acids, seracholeic acid and the like can be mentioned.
- Examples of the branched saturated fatty acids include various methyl pentadecanoic acids, various bromovirnonanoic acids, various methyl dodecanoic acids, various bromodenic acids, various methyl tridecanoic acids, various methyl tetradecanoic acids, various methyl pentadecanoic acids, and various types of fatty acids.
- Tyltetradecanoic acid various methylhexadecanoic acids, various propyltetradecanoic acids, various ethylhexadenic acids, various methylheptadecanoic acids, various butyltetradecanoic acids, various methyloctadecanoic acids, various ethylodecadecanoic acids, various methylnonadecanes Acid, various ethyl octadecanoic acids, various methyl eicoic acids, various propyl octadecanoic acids, various butyl octadecanoic acids, various methyl docosanoic acids, various pentyl octadecanoic acids, various methyl tricosanoic acids, various ethyl docosanoic acids, various pulp Mouth-bilhexa eicosanoic acid, various hexyloctadecanoic acids; 4,4-d
- branched-chain unsaturated fatty acids 5-methyl-2-undecenoic acid, 2-methyl-2-dodecenoic acid, 5-methyl-2-tridecenoic acid, 2-methyl-9-octadecenoic acid, 2-ethyl-9-octadecenoic acid, 2 —Propyl-9-octadecenoic acid, 2-methyl-2-eicosenoic acid, and the like.
- stearic acid, oleic acid, 16-methylheptadecanoic acid (isostearic acid) and the like are preferable.
- the component (c) may be used alone or in combination of two or more.
- the compounding amount of the component is 0.01 to 5% by weight based on the total amount of the composition. /. It is. If the amount is too small, the intended effects of the present invention cannot be sufficiently exerted. If the amount is too large, the effect is not improved for the amount, and the solubility in the base oil decreases.
- the preferred amount is 0.05 to 2 weight. /. Range.
- the component (d) is an organic acid represented by the following general formula (XXXIV). O
- R 7 1 is an alkyl group or an alkenyl group of carbon number 6-30 of 6-30 carbon atoms
- R '2 is an alkyl group having 1-4 carbon atoms
- m is shows the integer of 1 to 4
- R 7 1 is an alkenyl group of the alkyl group or carbon number 6-30 of 6-30 carbon atoms, among them an alkyl group carbon atoms or a C 1 0-20 1 0-2
- R 7 2 is an alkyl group having 1 to 4 carbon atoms, among them preferred is a methyl group.
- m is an integer of 1 to 4, with 1 being preferred.
- the organic acids include N-oleoinolesarcosine, N-steared inolesanolecosin, N-norenoletoylsarcosine, N-myris toinoresarcosine, N-lauroylsanolecosin and the like. be able to.
- the above-mentioned component (d) may be used alone or in combination of two or more.
- the amount of the component (d) is 0.01 to 5% by weight based on the total amount of the composition. If the amount is too small, the intended effects of the present invention cannot be sufficiently exerted. If the amount is too large, the effect is not improved for the amount, and the solubility in the base oil decreases.
- the preferred amount is 0.05 to 2 weight. /. Range.
- the fatty acid of the fatty acid amide of the component those having 12 to 24 carbon atoms can be suitably mentioned.
- Specific examples of the fatty acid include those similar to the component (c).
- the above component (e) may be used alone or in combination of two or more.
- the amount of the component (e) is 0.01 to 5% by weight based on the total amount of the composition. If the amount is too small, the intended effects of the present invention cannot be sufficiently exerted. If the amount is too large, the effect is not improved for the amount, and the solubility in the base oil decreases.
- the preferred amount is in the range of 0.1 to 2% by weight.
- the refrigerating machine oil composition of the present invention may contain, if necessary, various known additives, for example, extreme pressure agents such as tricresiphosphate; phenol-based and amine-based antioxidants; and phenyldaricidyl.
- Acid scavengers such as epoxy compounds such as ether, hexoxide, and epoxidized soybean oil; copper deactivators such as benzotriazole and benzotriazole derivatives; silicone oil;
- An antifoaming agent such as can be appropriately compounded.
- the refrigerant used in the refrigerator to which the refrigerator oil composition of the present invention is applied includes a hydrofluorocarbon-based, a phenolelocabon-based, a non-hydrocarbon-based, an ether-based, a carbon dioxide-based, or an ammonia-based refrigerant.
- the power at which the refrigerant is used Among these, a fluorocarbon-based refrigerant with a high opening is preferable.
- the hydrofluorocarbon-based refrigerant include 1,1,1,2-tetrafluorofluoroethane (R134a), difluoromethane (R32), pentafluorofluoroethane (R125) and 1,1,11-fluorofluorocarbon.
- Trifluoroethane (R13a) is preferred, and these may be used alone or in combination of two or more. These hydrofluorocarbons have no risk of destruction of the ozone layer and are preferable as refrigerants for compression refrigerators.
- the mixed refrigerant include a mixture of R32, R125, and R134a in a weight ratio of 23:25:52 (hereinafter, referred to as R407C), and a weight ratio of 25.
- R4L0A A mixture of 15:60, a mixture of shaku 32 and 1 ⁇ 1 25 in a weight ratio of 50:50
- R410B a mixture of R32 and R125 A mixture having a weight ratio of 45:55
- R404A a mixture of R144a and R134a in a weight ratio of 44: 52: 4
- R507 a mixture of R125 and R143a in a weight ratio of 50:50
- the composition was evaluated for lubricating performance in an extreme pressure region (hereinafter, referred to as extreme pressure performance), lubricating performance in an oily region (hereinafter, referred to as oily performance), and volume resistance in the following manner.
- extreme pressure performance lubricating performance in an oily region
- oily performance oily performance
- volume resistance in the following manner.
- R 1 34a (Blow-in type)
- Testing machine Sealed block on ring testing machine
- Block Z ring A4032 (aluminum) / FC250 (iron) Oil temperature: 70:
- Atmosphere R134a sealed (0.6MPa)
- Example 1 Example 2 Example 3 Example 4
- Oil performance Wear width (mm) 1.3 1.1.5
- the present invention has excellent lubrication performance, and particularly in a friction portion between an aluminum material and an iron material, a good friction reducing effect can be exhibited in both the oily region and the extreme pressure region.
- a refrigerator oil composition suitable as a lubricating oil for a refrigerator using a non-chlorinated chlorofluorocarbon refrigerant such as R134a which does not cause the above problem. Therefore, the refrigerating machine oil composition of the present invention can be applied to a refrigerating machine having all types of compressors such as a one-tally type, a scurnole type, and a reciprocating type.
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Engineering & Computer Science (AREA)
- Lubricants (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00906599A EP1167495B1 (en) | 1999-03-05 | 2000-03-01 | Refrigerating machine oil compositions |
US09/926,106 US6878677B1 (en) | 1999-03-05 | 2000-03-01 | Refrigerating machine oil compositions |
CA002362223A CA2362223A1 (en) | 1999-03-05 | 2000-03-01 | Refrigerating machine oil composition |
DE60044243T DE60044243D1 (de) | 1999-03-05 | 2000-03-01 | Ölzusammensetzung für kühlmaschine |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11/58387 | 1999-03-05 | ||
JP05838799A JP4316042B2 (ja) | 1999-03-05 | 1999-03-05 | 冷凍機油組成物 |
JP11/94530 | 1999-04-01 | ||
JP09453099A JP4316044B2 (ja) | 1999-04-01 | 1999-04-01 | 冷凍機油組成物 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000053704A1 true WO2000053704A1 (fr) | 2000-09-14 |
Family
ID=26399437
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/001197 WO2000053704A1 (fr) | 1999-03-05 | 2000-03-01 | Compositions huileuses pour machines refrigerantes |
Country Status (6)
Country | Link |
---|---|
US (1) | US6878677B1 (ja) |
EP (4) | EP1167495B1 (ja) |
KR (2) | KR100694933B1 (ja) |
CA (1) | CA2362223A1 (ja) |
DE (3) | DE60044513D1 (ja) |
WO (1) | WO2000053704A1 (ja) |
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EP1167495B1 (en) | 1999-03-05 | 2010-04-21 | Idemitsu Kosan Co., Ltd. | Refrigerating machine oil compositions |
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JP5379483B2 (ja) * | 2006-09-29 | 2013-12-25 | 出光興産株式会社 | 圧縮型冷凍機用潤滑油、及びそれを用いた冷凍装置 |
JP5379487B2 (ja) * | 2006-09-29 | 2013-12-25 | 出光興産株式会社 | 圧縮型冷凍機用潤滑油、及びそれを用いた冷凍装置 |
JP5379484B2 (ja) * | 2006-09-29 | 2013-12-25 | 出光興産株式会社 | 圧縮型冷凍機用潤滑油、及びそれを用いた冷凍装置 |
JP5379488B2 (ja) * | 2006-09-29 | 2013-12-25 | 出光興産株式会社 | 圧縮型冷凍機用潤滑油、及びそれを用いた冷凍装置 |
JP5379486B2 (ja) * | 2006-09-29 | 2013-12-25 | 出光興産株式会社 | 圧縮型冷凍機用潤滑油、及びそれを用いた冷凍装置 |
US8894875B2 (en) | 2006-09-29 | 2014-11-25 | Idemitsu Kosan Co., Ltd. | Lubricant for compression refrigerating machine and refrigerating apparatus using the same |
US8916060B2 (en) | 2006-09-29 | 2014-12-23 | Idemitsu Kosan Co., Ltd. | Lubricant for compression refrigerating machine and refrigerating apparatus using the same |
US8926857B2 (en) | 2006-09-29 | 2015-01-06 | Idemitsu Kosan Co., Ltd. | Lubricant for compression refrigerating machine and refrigerating apparatus using the same |
US8486871B2 (en) | 2007-03-08 | 2013-07-16 | Idemitsu Kosan Co., Ltd. | Lubricant for compression type refrigerating machine and refrigeration system using the same |
JP5302184B2 (ja) * | 2007-03-08 | 2013-10-02 | 出光興産株式会社 | 圧縮型冷凍機用潤滑油、及びそれを用いた冷凍装置 |
Also Published As
Publication number | Publication date |
---|---|
DE60045644D1 (de) | 2011-03-31 |
EP1167495A4 (en) | 2004-03-10 |
EP1167495A1 (en) | 2002-01-02 |
KR20020010121A (ko) | 2002-02-02 |
EP2281865B1 (en) | 2012-10-10 |
KR20060108776A (ko) | 2006-10-18 |
DE60044243D1 (de) | 2010-06-02 |
US6878677B1 (en) | 2005-04-12 |
EP1681341A1 (en) | 2006-07-19 |
KR100747947B1 (ko) | 2007-08-08 |
EP2281865A1 (en) | 2011-02-09 |
DE60044513D1 (de) | 2010-07-15 |
EP1681341B1 (en) | 2010-06-02 |
EP1167495B1 (en) | 2010-04-21 |
EP1681342B1 (en) | 2011-02-16 |
CA2362223A1 (en) | 2000-09-14 |
KR100694933B1 (ko) | 2007-03-14 |
EP1681342A1 (en) | 2006-07-19 |
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