CN110168063A

CN110168063A - Engine lubricant containing polyether compound

Info

Publication number: CN110168063A
Application number: CN201880006704.6A
Authority: CN
Inventors: M·J·玛赛拉; C·D·雷普科
Original assignee: Lubrizol Corp
Current assignee: Lubrizol Corp
Priority date: 2017-01-17
Filing date: 2018-01-17
Publication date: 2019-08-23
Also published as: US20190352577A1; CA3049665A1; WO2018136541A1; EP3571271A1

Abstract

The present invention relates to the lubricant compositions for engine of small motorcycle and the method for reducing the static friction (can such as be found in wet clutch) between iron and non-iron surface.The lubricant compositions include that polyether compound is combined with one or more Ashless friction modifiers.

Description

Engine lubricant containing polyether compound

Background of invention

The present invention relates to lubricant compositions, it is main but it is non-expert be used for four strokes, it is usually air cooled small-sized to rub Motorcycle (scooter) and motorcycle engine, show between reduced iron and non-iron surface static friction of clutch (such as It is typically found in motorcycle wet clutch).

Commonly known at least two for reducing static friction of clutch method.Firstly, it is full to have to prepare lubricant The required clutch friction performance of specification needed for foot.Secondly, lubricant can be changed with reinforcing agent packet or multifunctional additive for lubricating oils Property, by the clutch friction property regulation of lubricant to required specification.Enhancing agent addition agent is being typically used as to reduce clutch In the additive of device frictional behaviour, there are molybdenum compound, such as molybdenum dithiocarbamate compound.These compounds may be held high It is expensive.Other additives that static friction of clutch is reduced for enhancing lubricant, are used for example as certain phenolic compounds of solubilizer, Just by increasing supervision pressure.Therefore, it is necessary to cost-effective and functional additive components, can be used for lubricant, Including the reinforcing agent packet for lubricant, clutch friction will be effectively reduced, at the same will not excessive damage's other performance characteristic, Such as fuel economy, cleannes, dispersion force, abrasion etc..

Therefore, disclosed technology solves the problems, such as to provide following lubricant and the reinforcing agent packet for lubricant, The static friction in the clutch at least one iron and a non-ferric clutch disc is effectively reduced.In addition, disclosed technology It solves the problems, such as to provide following lubricant and the reinforcing agent packet for lubricant, static friction is both effectively reduced, keeps simultaneously Or improve fuel economy, at least one of cleannes and abrasion.This is by being surprisingly found that realization, Mou Xieju Ether and polyetheramine reduce iron in the clutch at least one iron and a non-ferric clutch disc and non-so that rate is effectively treated Static friction between iron surface.In addition, the combination of polyethers and/or polyetheramine and Ashless friction modifiers is to be effectively treated rate offer Reduced static friction, while synergistically keeping fuel economy.

Summary of the invention

The present invention provides a kind of lubricant compositions, the oil it includes (a) with lubricant viscosity, (b) polyether compound, (c) high alkaline detergent, (d) Ashless friction modifiers, (e) dispersing agent, and (f) optionally antioxidant.

According to an embodiment, polyether compound may include polyetheramine.

According to another embodiment, Ashless friction modifiers can be derived from alpha-hydroxy carboxylic acid compounds, such as tartaric acid, lemon Acid, malic acid, lactic acid, the derivative of glycolic, the oligomer of the acid, or combinations thereof.

According to another embodiment, Ashless friction modifiers can be the acid imide of tartaric acid, ester or amide, and In one embodiment, winestone acid imide can be.

According to another embodiment, high alkaline detergent may include metalliferous detersive, and wherein metal is selected from Sodium, magnesium and calcium.

According to another embodiment, high alkaline detergent can be selected from sulfonate, phenates, salicylate, salixarate And its mixture.

According to another embodiment, detersive may include calcium sulfonate detergents.

According to an embodiment, lubricating composition high alkaline detergent can be free of or be substantially free of phenates.

According to an embodiment, lubricating composition can be free of or be substantially free of phenolic compound, in an embodiment party In case, alkylphenol compounds can be free of or are substantially free of.

In one embodiment, lubricating composition may include molybdate compound, and in an alternate embodiment, can Be free of or be substantially free of molybdate compound.

In another embodiment, lubricating composition may include (a) major amount of oil with lubricant viscosity, (b) The polyether compound of 0.05-3.0 weight % (or 0.1-2.0 weight % or 0.1-1.0 weight % or 0.2-0.8 weight %), (c) The high alkaline detergent of 0.05-3.0 weight % (or 0.1-2.0 weight % or 0.1-1.0 weight % or 0.2-0.8 weight %), (d) Ashless friction of 0.05-2.0 weight % (or 0.1-1.0 weight % or 0.1-0.8 weight % or 0.2-0.8 weight %) changes Into agent, and (e) dispersing agent of 0.1-20 weight % (or 1.0-15 weight % or 1.5-10 weight % or 2-6 weight %).

In other embodiments, the present invention provides the method for lubrication wet clutch, by supplying to wet clutch Lubricating composition as taught herein.

In another embodiment, the present invention, which provides, reduces quiet rubbing between iron and non-iron surface in wet clutch The method of wiping, wherein wet clutch include at least one with non-ironing surface clutch disc and at least one with iron surface Clutch disc, this method includes the lubricating composition supplied between iron and non-ferric clutch disc surface as taught herein.

In another embodiment, the present invention provides the method for lubrication engine, including such as herein to engine supply The lubricating composition instructed.

In some embodiments, engine can be four-stroke engine, it is useful to be air-cooled engine, usually It is to provide the engine less than about 150 or 125 or 100 or 85 horsepowers.

In one embodiment, the method for lubricating engine includes supplying the lubricant combination for not lubricating wet clutch Object.

According to another embodiment, a kind of multifunctional additive for lubricating oils for top processing lubricating composition, packet are provided Polyether compound containing (a) 2-35 weight % (or 5-30 weight % or 10-25 weight % or 10-20 weight %), (b) 2-25 weight Measure the Ashless friction modifiers of % (or 3-20 weight % or 5-20 weight % or 7-15 weight %), and (c) 10-80 weight % The metalliferous high alkaline detergent of (or 10-75 weight % or 30-75 weight % or 40-70 weight %).

According to another embodiment, a kind of lubricant compositions are provided, it is major amount of with lubricant viscosity that it includes (a) Oil, and the additive provided in this article of (b) 0.5-5.0 weight % (or 0.5-3.0 weight % or 0.5-1.5 weight %) is dense Contracting object.

Disclosed technology further provides for lubricating composition, and the quiet of reduction is provided while keeping fuel economy Friction.

In one embodiment, it is the static friction less than 1.25 that lubricant, which has according to JASO T903:2011MB specification, Performance index (SFI) is in another embodiment 0.5-1.25.

Detailed description of the invention

Various features and embodiment will be illustrated below by the mode of non-limitative illustration.

In one embodiment, the present invention provides a kind of lubricant compositions, and it includes (a) to have lubricant viscosity Oil, (b) polyether compound, (c) high alkaline detergent, (d) Ashless friction modifiers, (e) dispersing agent, and (f) optionally antioxygen Agent.

Oil with lubricant viscosity

The lubricant compositions include the oil with lubricant viscosity.This oil includes natural and synthetic oil, by adding hydrogen to split Change, the oil that hydrogenation and hydrofinishing obtain is unpurified, purification and the mixture in refined oil and they.

Unpurified oil is that usually not (or almost without) is further purified processing and is directly obtained by natural or synthetic source Those of.Refined oil is similar to unrefined oil, and only they are further processed to improve in one or more purification steps One or more performances.What purification technique was known in the art, and extracted including solvent extraction, second distillation, acid or alkali, Filtering, diafiltration etc..Rerefined oils also referred to as regenerate or reprocessed oils, and by being similar to those for obtaining those of refined oil Method obtain, and in addition handled frequently by the technology for being related to removing useless additive and oil decomposition product.

It include animal oil, vegetable oil (for example, castor oil), mineral profit preparing natural oil useful in lubricating oil of the present invention The mineral of lubricating oil such as liquid petroleum and alkane, cycloalkane or the processing of mixing alkane-naphthene types solvent or acid processing Lubricating oil and the oil derived from coal or shale or their mixture.

Synthetic lubricant fluid is useful and including hydrocarbon ils, for example, polymerization and copolymerization alkene (such as polybutene, poly- third Alkene, propylene-isobutylene copolymers)；Poly- (1- hexene), poly- (1- octene), poly- (1- decene) and their mixture；Alkyl Benzene (such as detergent alkylate, Tetradecylbenzene, dinonyl benzene, two-(2- ethylhexyl)-benzene)；Polyphenyl (for example, biphenyl, three Benzene, alkylated polyphenyls)；Diphenyl alkane is alkylated diphenyl alkane, alkylated dipheny ethers and alkylated diphenyl sulfides and its derivative Object, analog and homologue or their mixture.

Other synthetic lubricant fluids include polyol ester (such as), diester, the liquid ester of phosphoric acid (such as tricresyl phosphate, the diethylester of trioctyl phosphate and decane phosphonic acids) or polymerizing tetrahydrofuran.Synthetic oil can pass through Fischer-Tropsch reaction prepares and usually can be the fischer-tropsch hydrocarbon or wax of hydroisomerization.In one embodiment, oil can lead to Cross Fischer-Tropsch gas-liquid systhesis program and the preparation of other solution-air oil.

Oil with lubricant viscosity can also be determined as provided in American Petroleum Institute (API) (API) base oil interchangeability guide Justice.Five base oil groups are as follows: Group I (sulfur content>0.03 weight %, and/or<90 weight % saturates, viscosity index (VI) 80- 120)；Group II (sulfur content<0.03% (weight), and>90 weight % saturates, viscosity index (VI) 80-120)；Group III (sulfur content<0.03% (weight), and>90 weight % saturates, viscosity index (VI)>120)；Group IV (all poly alpha olefins (PAO))；With Group V (all other to be not included in I, II, III or IV group in).Oil with lubricant viscosity is also possible to API group II+ base oil, the term refer to a kind of group of II class base oil, and viscosity index (VI) is greater than or equal to 110 and less than 120, such as " PRACTICE OF DESIGN: car automatic transmission " is described in SAE publication, fourth edition, AE-29,2012, the 12-9 pages, Yi Ji U.S. Patent number the 8,216,448, the 1st arranges described by the 57th row.

Oil with lubricant viscosity can be API Group IV oil or their mixture, i.e. polyalphaolefin.Poly alpha olefin can It is prepared by the method for metallocene catalyst or by Nonmetallocene method.

Oil with lubricant viscosity includes API Group I, Group II, Group III, Group IV, Group V oil or theirs is mixed Close object.Often the oil with lubricant viscosity is API Group I, Group II, Group II+, Group III, Group IV oil or theirs is mixed Close object.Alternatively, the oil with lubricant viscosity is often API Group II, Section II+group, Group III or Group IV oil or they Mixture.Alternatively, the oil with lubricant viscosity is often API Group II, Section II+group, Group III oil or theirs is mixed Close object.

It is existing with lubricant viscosity oil amount be usually subtracted from 100 weight % additive as described above with And the remaining sum after the summation of the amount of other performance additives.In general, the lubricating composition disclosed herein prepared completely is main Part is greater than the lubricating composition of 50 weight % prepared completely, will be made of one or more oil with lubricant viscosity. In general, the lubricating composition of disclosed technology includes at least 60 weight %, or at least 70 weight %, or at least 80 weight %, or At least oil with lubricant viscosity of 90 weight %.

In the form of lubricant compositions can prepare lubricant in concentrate and/or completely.If lubricant of the invention Composition is the form (it can be combined with additional oil, with entirely or partly forming finished lubricants) of concentrate, this hair Bright component includes 1:99-99:1 by weight or 80:20- with the oil with lubricant viscosity and/or with the ratio of flux oil The range of 10:90.

In certain embodiments, lubricant compositions can contain synthetic ester base oil.Synthetic ester can have 100 The 2.5-30mm measured at DEG C²The kinematic viscosity of/s.In one embodiment, lubricant compositions include less than 50 weight % Synthetic ester base oil, the synthetic ester base oil have at 100 DEG C at least 5.5mm²/ s, or at least 6mm²/ s, or at least 8mm²The kinematic viscosity of/s.

Synthetic ester of the invention may include dicarboxylic acids (for example, phthalic acid, succinic acid, alkyl succinic acid and alkenyl Succinic acid, maleic acid, azelaic acid, suberic acid, decanedioic acid, fumaric acid, adipic acid, linoleic acid dimer, malonic acid, alkyl the third two Acid and alkenyl malonic acids) and any various alcohol (for example, butanol, hexanol, dodecyl alcohol, 2-Ethylhexyl Alcohol, ethylene glycol, two Glycol monoether and propylene glycol) ester.The specific example of these esters includes dibutyl adipate, two (2- ethylhexyl) decanedioic acid Ester, two-n-hexyl fumarates, dioctyl sebacate, diisooctyl azelate, diiso decyl nonyl dioctyl ester, O-phthalic Dioctyl phthalate, didecyl phthalate, two-eicosyl sebacates, the 2- ethyl hexyl diester of linoleic acid dimer, and The complex ester reacted with two moles of tetraethylene glycols and two moles of 2 ethyl hexanoic acids by one mole of decanedioic acid and formed.

The ester that can be used as synthetic oil further includes by C5-C12 monocarboxylic acid and polyalcohol and polyol ethers such as neopentyl glycol, three hydroxyls Methylpropane, pentaerythrite, dipentaerythritol and tripentaerythritol are made.Ester is also possible to monoesters, can be with trade name Priolube 1976^TM(C18 alkyl-COO-C20 alkyl) obtains.

Synthetic ester base oil can be less than 50 weight % of composition, or less than 40 weight %, or less than 35 weight %, Or less than 28 weight %, or less than 21 weight %, or less than 17 weight %, or less than 10 weight %, or less than 5 weights of composition The amount of amount % is present in lubricant compositions of the invention.In one embodiment, lubricant compositions of the invention are not Contain, or be substantially free of, there is at least 5.5mm at 100 DEG C²The synthetic ester base oil of the kinematic viscosity of/s.

Polyether compound

In this technique, lubricating composition includes oil and polyether compound with lubricant viscosity.In an embodiment In, polyether compound may include the blend of polyetheramine or polyethers and polyetheramine.

Polyether compound of the invention can be indicated by formula 1:

RO[CH₂CH(R¹)O]_nA

Formula 1

Wherein R is the straight of hydrogen or 1-32 (or 1-26 or 2-26 or 4-24 or 8-20 or 10-20 or 12-18) a carbon atom Chain, branching or cyclic hydrocarbon group,

R¹Selected from hydrogen, the alkyl and its mixture of 1-6 (or 1-4 or 1-2 or 1 or 2) a carbon atom,

N is the number of 2- about 50 (or 12-36 or 18-30 or 2-20), and

A is selected from hydrogen, R¹,-R⁷NR²R², C=OR⁸With-NR³R³, wherein

R²It is each independently the hydrocarbon of hydrogen or 1-24 (or 2-24 or 4-20 or 8-20 or 12-18 or 2-12) a carbon atom Base,

R³It is each independently hydrogen, the alkyl of 1-24 (or 2-24 or 4-20 or 8-20 or 12-18 or 2-12) a carbon atom, Or-[R⁴N(R⁵)]_pR⁶

R⁴It is C₂-C₁₀Alkylidene,

R⁵And R⁶It independently is the alkyl of hydrogen or 1-6 (or 1-4 or 1-2 or 2-4),

R⁷And R⁸It independently is the alkyl of hydrogen or 1-6 (or 1-4 or 1-2 or 2-4 or 3) a carbon atom, and

P is the number of 1-7.

Useful polyetheramine can by that will contain hydroxy compound such as alcohol or alkyl phenol and oxyalkylene, oxyalkylene intermixture or with Several oxyalkylenes with 1:2-50 molar ratio containing hydroxy compound and oxyalkylene (usually ethylene oxide) be condensed in a sequential manner with Polyethers is formed to prepare.U.S. Patent number 5,094,667 provides the reaction condition for preparing polyethers, the disclosure of which by reference to It is incorporated herein.

Alcohol can be straight chain or branching, 1-32 carbon atom or 1-26 or 2-26 or 4-24 or 8-20 or 10-20 or 12-18 carbon atom.The alkyl of alkyl phenol can have and carbon atom range as alcohols.

Oxyalkylene is preferably ethylene oxide, propylene oxide or butylene oxide.The quantity of oxyalkylene units in polyethers can be with It is 2-50 or 12-36 or 18-30 or 2-20.

In a particularly useful embodiment, polyether compound can be polyetheramine.Polyetheramine of the invention can be with It is indicated by formula 1:

Wherein R is the hydrocarbon of hydrogen or 1-32 (or 1-26 or 2-26 or 4-24 or 8-20 or 10-20 or 12-18) a carbon atom Base,

N is the number of 2- about 50, and

A is selected from-R⁷NR²R²With-NR³R³, preferably-R⁷NR²R², wherein

Wherein R⁴It is C₂-C₁₀Alkylidene,

P is the number of 1-7.

Useful polyetheramine can be prepared by converting polyetheramine as described above, by with ammonia, amine or polyamines amination It is-NR to form wherein A³R³Type polyetheramine.Disclosed patent application EP310875 provides the reaction of aminating reaction Condition, the disclosure of which are expressly incorporated herein by reference.Alternatively, then polyether intermediate can also be by hydrogenating with acrylonitrile reactor And being converted to wherein A is-R⁷NR²R²Type polyetheramine.U.S. Patent number 5,094,667 provide cyanoethylation and then The reaction condition of hydrogenation, the disclosure of which are expressly incorporated herein by reference.

Wherein A is-R⁷NH₂The polyetheramine according to formula 1 be useful.The commercial examples of useful polyetheramine are to come from Chevron'sSeries and from Huntsman'sSeries.

It, can be with about 3.0 weight of about 0.05- when polyether compound is a part for the lubricant compositions prepared completely The amount for measuring % (or about 2.0 weight % of about 0.1-, or about 1.0 weight % of about 0.1-, or about 0.8 weight % of about 0.2-) exists, phase For lubricating composition.However, in another embodiment, polyether compound can be comprising polyether compound, ashless to rub Wipe the component of the multifunctional additive for lubricating oils of modifier and optionally detersive.In multifunctional additive for lubricating oils, polyether compound can ( On oil-free basis) with about 20 weight % of about 2- about 35 weight % or about 5- about 30 weight % or about 10- about 25 weight % or about 10- In the presence of relative to multifunctional additive for lubricating oils.

Ashless friction modifiers

Lubricant compositions further include at least one Ashless friction modifiers.Friction improver is free from the addition of metal Agent.Metal-free additive can also referred to as ashless (or without ash) additive because when the item that be subjected to ASTM D 874 Under part, it does not generate any sulfated ash generally.Additive is referred to as " being free of metal ", if it is not lubricant group If closing object contribution tenor.

In certain embodiments, friction improver can be selected from amine long-chain fatty acid derivative, long-chain fat ester, or The derivative of long-chain fat race epoxides；Fatty imidazolines；The amine salt of alkyl phosphoric acid；With various hydroxycarboxylic acids (such as winestone Acid, citric acid, malic acid, lactic acid, glycolic and mandelic acid) fatty ester, amide and/or acid imide.

As used herein, refer to about the term of friction improver " fatty alkyl " or " fat " with 8-30 carbon atom Carbochain, typically normal carbon chain.

In one embodiment, Ashless friction modifiers may include the amide of hydroxycarboxylic acid, ester or imide derivative. Such material and its synthesis can be from known to such as PCT Publication WO 2006/044411 and US publication 2009/067091.It Have been used in lubricant because they have thermal stability or oxidation stability, the characteristic of sediment monitoring and friction control.

The example of Suitable hydroxy carboxylic acid includes citric acid, tartaric acid, lactic acid, malic acid, glycolic, hydracrylic acid, hydroxyl Glutaric acid and its mixture.Also the oligomer (such as object is self condensed by the glycolic that ester is formed) of these acid can be used. In one embodiment, the amide of hydroxycarboxylic acid, ester or imide derivative can be derived from tartaric acid, citric acid, hydroxyl-amber Amber acid, dihydroxy mono-acid, or mixtures thereof monohydroxy diacid.In one embodiment, the amide of hydroxycarboxylic acid, ester or acyl are sub- Amine derivative includes the derivative (or compound from derived from it) of tartaric acid or citric acid, or in another embodiment, From tartaric acid.

In one embodiment, the amide of hydroxycarboxylic acid, ester or imide derivative can be indicated by formula 2 (including 2a or 2b):

It is wherein 0-10 for formula 2b, n '；It is 1-10 for formula 2a, n '；

P is 1-5；

Y and Y ' independently are-O-, > NH, > NR3 or imide group, by will be in the Y and Y ' group or 1a in 2b Two Y groups combine and form R between two > C=O group¹- N < group and formed；

X independently is-CH₂, > CHR⁴, > CR⁴R⁵, > CHOR⁶, > C (OH) CO₂R⁶, > C (CO₂R⁶)₂,-CH₃,-CH₂R⁴Or CHR₄R⁵,-CH₂OR⁶,-CH (CO₂R⁶)₂, ≡ C-R⁶(wherein ≡ refers to trivalent, and can be only applicable to formula 1) or its mixing Object, with meet formula 2a and/or 2b chemical valence (compound of formula 2a or 2b can have at least one X, be hydroxyl (i.e. > CHOR⁶, wherein R⁶It is hydrogen)；

R¹And R²It independently is alkyl, usually contains 1-150 or 4-30 or 8-15 carbon atom；

R³For alkyl；

R⁴And R⁵It independently is the group (such as acyl group) of ketone group containing, ester group, alkyl ,-OR⁶,-CO₂R⁶Or-OH (when X is > CR⁴R⁵When, a typically not greater than-OH)；With

R⁶It independently is hydrogen or alkyl, usually contains 1-150 or 4-30 or 8-15 carbon atom.

In one embodiment, 2 compound of formula contains imide group, can be by the way that Y and Y ' group to be incorporated in Form R together and between two > C=O group¹- N < group and formed.In one embodiment, formula (1) compound has Such as undefined m, n, X and R¹, R²And R⁶: m is 0 or 1, and n 1-2, X are > CHOR⁶, and R¹, R²And R⁶It independently is containing 4- The alkyl of 30 carbon atoms.In one embodiment, Y and Y ' is-O-.In one embodiment, 2 compound of formula has Such as undefined m, n, X and R¹, R²And R⁶: m is 0 or 1, and n 1-2, X are > CHOR⁶；Y and Y ' is-O-, and R¹, R²And R⁶ It independently is hydrogen or the alkyl containing 4-30 carbon atom.

The diester of formula 2, diamides, ester-acid amide, ester-imide compound can be by making dicarboxylic acids (such as tartaric acid) It is optionally reacted in the presence of known esterification catalyst with amine or alcohol to prepare.It, must in the case where ester-imide compound At least three carboxylic acid groups (such as being provided by citric acid) must be provided.The amine or alcohol of reaction usually have enough carbon atoms with full R defined in sufficient formula 2¹With or R²Requirement.

In one embodiment, R¹And R²It independently is straight chain or branched hydrocarbyl radical.They are branch in one embodiment Change；They are straight chains in another embodiment；Or it is some can be branching, some is straight chain.R¹And R²It can By in amine or alcohol introduction-type 2.Alcohol includes monohydric alcohol and polyalcohol.The carbon atom of alcohol can be straight chain, branched chain or it is mixed Close object.

The example of suitable alcohols includes 2-Ethylhexyl Alcohol, different tridecanol, Guerbet alcohol, methanol, ethyl alcohol, propyl alcohol, butanol, Amylalcohol, hexanol, enanthol, octanol (Ctanol), nonyl alcohol, decyl alcohol, tip-nip, dodecanol, tridecanol, tetradecanol, 15 Alkanol, hexadecanol, heptadecanol, octadecanol, nonadecanol, eicosanol, ethylene glycol, propylene glycol, 1,3-BDO, 2, 3- butanediol, 1,5-PD, 1,6- hexylene glycol, glycerol, D-sorbite, pentaerythrite, trimethylolpropane, starch, grape Sugar, sucrose, or mixtures thereof methyl glucosamine.In one embodiment, polyalcohol is made with the mixture together with monohydric alcohol With；In this combination, monohydric alcohol can account for at least 60 moles of % or at least 90 moles of % of mixture.

If the acid used is tartaric acid, it can be commercially available material, and it can be with one or more isomeric forms In the presence of, such as the racemic mixture or interior of d- tartaric acid, l- tartaric acid, d, l- tartaric acid or d- tartaric acid and l- tartaric acid Recemic-tartaric acid.

In certain embodiments, alpha-hydroxy carboxylic acid derivatives may include tartrimide, such as by former with 8-24 carbon The tartrimide that or mixtures thereof primary amine of son or 12-20 carbon atom or 16-18 carbon atom is formed.In an embodiment party In case, tartrimide is oil base tartrimide.In other embodiments, alpha-hydroxy carboxylic acid derivatives may include tartaric acid Ester, such as tartaric acid and one or more alcohol with 8-24 carbon atom or 8-18 carbon atom or 12-14 carbon atom Diester.In one embodiment, tartrate is the ester from mixed C12-C14 alcohol.

The amount of Ashless friction modifiers can be 0.05-3.0 weight % or 0.05-2.0 weight % (or 0.1- in lubricant 1.0 weight % or 0.1-0.8 weight % or 0.2-0.8 weight %), relative to lubricant compositions.Ashless friction modifiers Can reside in concentrate as described above, wherein it can with 2-25 weight % or 3-20 weight % or 5-20 weight %, Or 7-10 weight %) exist (on oil-free basis), relative to multifunctional additive for lubricating oils.In concentrate, the amount of material be can be 2-20 times of above-mentioned concentration amount.

Detersive

In one embodiment, lubricant compositions provided by the invention further include overbased metal-containing detergents.Contain Metal in metal detergent can be zinc, sodium, calcium, barium or magnesium.The usually metal containing metal detergent can be sodium, calcium, or Magnesium.

Overbased metal-containing detergents can be selected from sulfonate, not the phenates of sulfur-bearing, sulfur-bearing phenates, salixarate, water Poplar hydrochlorate and their mixture or their boration equivalent.The high alkaline detergent can be with boric acid agent for example Boric acid carrys out boration.

Overbased metal-containing detergents may also comprise with mixed surfactant system, including phenates and/or sulfonate Component, such as phenates/salicylate, sulfonate/phenates, sulfonate/salicylate, sulfonate/phenates/salicylate are formed " mixing " detersive, e.g., such as in U.S. Patent number 6,429,178,6,429,179,6,153,565 and 6,281,179 It is described.For example, " use mixed sulfonate/phenate detergents, described " mixing detersive will be considered as being equal to different phenates and Sulfonate detergent introduces the amount of the amount as phenates and sulfonate soap respectively.

Under normal conditions, overbased metal-containing detergents can be sulfonate, phenates, sulfur-bearing phenates, salixarate or The zinc of salicylate, sodium, calcium or magnesium salts.Overbased sulfonate, salixarate, phenates and salicylate typically have 120- The total base number of 700 TBN.

Under normal conditions, overbased metal-containing detergents can be the high alkaline detergent of calcium or magnesium.

In another embodiment, lubricant compositions include can have the sulfoacid calcium high alkalinity of the TBN of 120-700 clear Net agent.Overbased sulfonate detergents can have the metal ratio of 12 to less than 20 or 12-18 or 20-30 or 22-25.

Overbased sulfonate usually has the total base number of 120-700 or 250-600 or 300-500 (on oil-free basis). What high alkaline detergent was known in the art.Such as US publication 2005/065045 (authorization be U.S. Patent number 7,407, 919) description in paragraph [0026]-[0037], sulfonate detergent can be straight chain with the metal ratio for being at least 8 or Branch-alkylbenzene sulfonate detersive.Linear alkylbenzene (LAB) may have the phenyl ring for any position for being connected to linear chain, usually exist 2,3 or 4 or their mixture.Linear alkylbenzene sulfonate (LAS) detersive can be for assisting to improve fuel economy to be special Useful.In one embodiment, alkylbenzene sulfonate detersive can be branch-alkylbenzene sulfonate, linear alkylbenzene (LAB) sulphur Hydrochlorate or their mixture.In one embodiment, lubricant compositions can be peace and quiet without linear alkylbenzene sulfonate (LAS) Agent.In one embodiment, sulfonate detergent can be the paragraph [0046]-such as in US publication 2008/0119378 [0053] metal salt of one or more oil-soluble alkyl toluene sulfonate compounds disclosed in.Detersive, such as branched alkyl Benzene sulfonate detersive, can be with 0.1-3 weight % or 0.25-1.5 weight %, or even 0.5-1.1 weight % is present in profit In lubricant composition.

In one embodiment, lubricant compositions further comprise with mixed surfactant system, including phenates And/or sulfonate component, such as phenates/salicylate, sulfonate/phenates, sulfonate/salicylate or sulfonate/phenates/ " mixed type " detersive that salicylate is formed.

Detersive can with 0.05-3.0 weight % (or 0.1-2.0 weight % or 0.1-1.0 weight % or 0.2-0.8 weight Measure %) amount exist, relative to the lubricant compositions prepared completely.Detersive can with 10-80 weight % (or 10-75 weight Amount % or 30-75 weight % or 40-70 weight %) amount (on oil-free basis) be present in multifunctional additive for lubricating oils, relative to Multifunctional additive for lubricating oils.It in some embodiments, may be useful to help solubilized Ashless friction modifiers including detersive. In other embodiments, it may be useful for detersive being omitted from multifunctional additive for lubricating oils.

Other performance additive

Lubricating composition can be by being added to the oil with lubricant viscosity for the product of methods described herein, optionally other Preparation (as described herein below) in the presence of performance additive.

The lubricating composition of disclosed technology optionally includes other performance additive.The other performance additive can wrap Include molybdenum compound, matal deactivator, viscosity improver, detersive, friction improver, antiwear additive, corrosion inhibitor, dispersing agent, Extreme pressure agent, antioxidant, foam in hibitors, demulsifier, pour-point depressant, sealing sweller those of (be different from present invention) with And at least one of their mixture.In general, the lubricating oil prepared completely will containing one of these performance additives or It is a variety of.

Lubricant compositions can also include molybdate compound, such as the dithiocarbamate compound containing molybdenum, and Those of containing nitrogen-molybdenum compound, such as be described in U.S. Patent number 6,329,327；In such as U.S. Patent number 6,914,037 Description is by molybdenum source, organic molybdenum made from the reaction of fat oil and diamines.

Molybdenum compound can be with the 0.005-2 weight % of the composition or 0.01- of composition in lubricant compositions 1.3 weight %, or the 0.02-1.0 weight % of even composition exist.Molybdenum compound can provide 0- for lubricant compositions The molybdenum of 1000ppm or 5-1000ppm or 10-750ppm, 5-300ppm or 20-250ppm.However, in some embodiments In, lubricant compositions are free of or are substantially free of molybdenum compound.

In another embodiment, lubricant compositions may include antioxidant, wherein the antioxidant includes phenol Class or amine antioxidants or their mixture.Antioxidant includes diaryl amine, alkylated diaryl amine, hindered phenol, Or their mixture.When it is present, antioxidant can be with 0.1-3 the weight % or 0.5-2.75 of lubricant compositions weight % or 1-2.5 weight % is measured to exist.

Diaryl amine or alkylated diaryl amine can be phenyl-α-naphthylamine (PANA), alkylated diphenylamine or alkane Base nonox or their mixture.Alkylated diphenylamine may include two-nonylated diphenylamines, and nonyl diphenylamine is pungent Base (Ctyl) diphenylamines, dioctylated diphenylamines, two-decylated diphenylamines, decyl diphenylamine and its mixture.Implement at one In scheme, diphenylamines may include nonyl diphenylamine, dinonyldiphenylamine, octyl diphenylamine, dioctyl diphenylamine or they Mixture.In another embodiment, alkylated diphenylamine may include nonyl diphenylamine or dinonyldiphenylamine.Alkane The diaryl amine of base may include octyl, two-octyls, nonyl, two-nonyls, decyl or didecyl nonox.

The hindered phenol antioxidant usually contains sec-butyl and/or tert-butyl as space steric hindrance group.Phenolic group group can By alkyl (in general, alkyl of linear chain or branched chain) and/or to be connected to the bridged group of the second aromatic group and be further substituted with.It closes The example of suitable hindered phenol antioxidant includes 2,6- DI-tert-butylphenol compounds, 4- methyl -2,6- DI-tert-butylphenol compounds, ethyl -2 4-, 6- DI-tert-butylphenol compounds, 4- propyl -2,6- di-t-butyl phenol or 4- butyl -2,6- DI-tert-butylphenol compounds or 4- dodecane Base -2,6 di t butyl phenol.In one embodiment, hindered phenol antioxidant can be a kind of ester, and may include, For example, the Irganox from Ciba^TML-135.Suitable ester-containing hindered phenol antioxidant chemistry to be described in more detail in the U.S. special It is found in benefit number 6,559,105.

Lubricant compositions can include dispersing agent or their mixture in another embodiment.Dispersing agent can be with It is succinimide dispersants, Mannich dispersant, succinamide dispersing agent, polyalkylene succinic acid esters, amide or ester-acid amide, Or their mixture.In one embodiment, dispersing agent, which may exist, is used as monodisperse agent.In one embodiment, The mixture that dispersing agent may exist for two or three of different dispersing agent, wherein at least one can be succinimide point Powder.

Succinimide dispersants can be derivative by aliphatic polyamines or their mixture.Aliphatic polyamines can be for example sub- Polyethylene polyamine, propylidene polyamines, the aliphatic polyamines of butylidene polyamines or their mixture.In one embodiment, aliphatic Polyamines can be ethylene.In one embodiment, aliphatic polyamines can be from ethylenediamine, diethylenetriamines, Sanya It is selected in tetramine, tetren, penten, polyamine stillage bottom and their mixture.

In one embodiment, dispersing agent can be polyalkylene succinic acid esters, amide or ester-acid amide.For example, polyolefin Succinate can be the polyisobutylene succinic acid ester or their mixture of pentaerythrite.Polyalkylene succinic acid ester-amide can To be obtained by polyisobutylene succinic acid is reacted with alcohol (such as pentaerythrite) and polyamines as described above.

Dispersing agent can be the long chain alkenyl succinimides of N- substitution.The one of the long chain alkenyl succinimides that N- replaces A example is polyisobutenyl succinimide.The polyisobutene of typically derivative polyisobutylene succinic anhydride is with 350-5000's Number-average molecular weight or 550-3000 or 750-2500g/ moles.Succinimide dispersants and their preparation have been disclosed, example Such as in U.S. Patent number 3,172,892,3,219,666,3,316,177,3,340,281,3,351,552,3,381,022,3, 433,744,3,444,170,3,467,668,3,501,405,3,542,680,3,576,743,3,632,511,4,234, 435,6,165,235,7,238,650, Re 26,433 and EP publication number 0355895A.

Dispersing agent can also by conventional method by with any various reagents post-reaction treatment.Wherein organic boron compound (such as boric acid), urea, thiocarbamide, dimercaptothiodiazole, carbon disulfide, aldehyde, ketone, carboxylic acid, such as terephthalic acid (TPA), the succinic acid that hydrocarbon replaces Acid anhydride, maleic anhydride, nitrile, epoxides and phosphorus compound.In one embodiment, the dispersing agent of post-processing is by boration.? In one embodiment, the dispersing agent of post-processing is reacted with dimercaptothiodiazole.In one embodiment, the dispersion of post-processing Agent is reacted with phosphoric acid or phosphorous acid.In one embodiment, the dispersing agent Yu terephthalic acid (TPA) and boric acid of post-processing carry out anti- It answers (as described in US publication 2009/0054278.

Dispersing agent can with the 0.1-20 weight % of lubricant compositions (or 1.0-15 weight % or 1.5-10 weight %, Or 2-6 weight % or 1-3 weight %) exist.

Succinimide dispersants may include polyisobutenyl succinimide, derived polyisobutenyl succinimide Number-average molecular weight or 750-2500g/ mole of the polyisobutene with 350-5000.

It may be used as antiwear additive and execute the another kind of additive of other roles to include such as U.S. Patent number 7,727,943 With oil-soluble titanium disclosed in US publication 2006/0014651.Oil-soluble titanium can be used as antiwear additive, The more than one function of friction improver, antioxidant, deposit-control additives or these functions.In an embodiment In, oil-soluble titanium is titanium (IV) alkoxide.Titanium alkoxides are formed by monohydric alcohol, polyalcohol or their mixture.Monohydric alcohol Salt can have 2-16 or 3-10 carbon atom.In one embodiment, Titanium alkoxides are titanium (IV) isopropoxides.At one In embodiment, Titanium alkoxides are titanium (IV) 2-Ethylhexyl Alcohol salt.In one embodiment, titanium compound includes ortho position 1,2- bis- The alkoxide of alcohol or polyalcohol.In one embodiment, 1,2- vicinal diamines include the fatty-acid monoester of glycerol, and often fatty acid is Oleic acid.

In one embodiment, oil-soluble titanium is titanium carboxylate.In a further embodiment, titanium (IV) Carboxylate is titanium neodecanoate.

Lubricant compositions can further include phosphorous antiwear additive in one embodiment.Typically, phosphorous antiwear additive can be with It is zinc dialkyl dithiophosphate, phosphite, phosphate, phosphonate and ammonium phosphate or their mixture.Dioxane Base zinc dithiophosphate is well known in the present art.Antiwear additive, it is no matter what type of, it can be with the 0-3 of lubricant compositions Weight % or 0.1-1.5 weight % or 0.5-0.9 weight % exists.

Extreme pressure (EP) agent there may also be.Soluble extreme pressure agent includes sulfur-bearing and the extreme pressure agent of sulphur containing chlorine, dispersing agent in the oil The dimercaptothiodiazole or CS of (usually succinimide dispersants)₂Derivative, the agent of chlorinated hydrocabon extreme pressure and phosphorus extreme pressure agent are spread out Biology.The example of such extreme pressure agent includes chlorinated wax；Olefine sulfide (such as sulfide isobutene), 2, the 5- dimercapto-that alkyl replaces 1,3,4- thiadiazoles or its oligomer, organic sulfur compound and polysulfide such as dibenzyldisulfide, double-(chlorobenzyl) two sulphur Compound, dibutyl tetrasulphide, the methyl oleate of vulcanization, sulfenyl phenolate, sulfurized dipentene, the terpenes and vulcanization Di Er of vulcanization This alder adducts；The reaction product of phosphosulfurized hydrocarbon such as phosphoric sulfide and turpentine oil or methyl oleate；Phosphide such as two hydrocarbon and three hydrocarbon Phosphite ester, for example, dibutyl phosphite ester, diheptyl phosphite ester, dicyclohexyl phosphite ester, amyl phenylphosphonous acid Ester；Diamyl phenyl phosphites, phosphorous acid tridecane base ester, distearyl phosphite ester and polypropylene substituted phenol phosphite ester； Metal thiocarbamates such as dioctyl zinc dithiocarbamate and barium heptyl dibasic phenol acid；Alkyl and dialkyl group acid or derivative The amine salt of object, including for example, the reaction product of dialkyl dithiophosphoric acid and propylene oxide amine salt, followed by with P₂O₅Into Single step reaction；With their mixture (as described in US3,197,405).The amount of extreme pressure agent, if it does, can be 0.001-5 Weight % or 0.1-2 weight % or 0.2-1 weight %.

Foam in hibitors can be useful, including polysiloxanes, propylene in the lubricant compositions of disclosed technology The copolymer of acetoacetic ester and 2-EHA and optional vinyl acetate；Demulsifier, including fluorinated silicones, three Alkyl phosphate, polyethylene glycol, polyethylene glycol oxide, polypropylene oxide and (ethylene oxide-propylene oxide) polymer.Foam inhibits The amount of agent, if it does, can be 0.001 to 0.012 weight % or to the 0.004 weight weight of % or 0.001 to 0.003 %.

Viscosity improver (also sometimes referred to as viscosity index improver or viscosity modifier) can be included in the present invention Composition in.Viscosity improver is usually polymer, including polyisobutene, polymethacrylates (PMA) and poly- methyl-prop Olefin(e) acid ester, diene polymer, alkyl styrenes, the styrene-maleic anhydride copolymer of esterification, hydrogenation alkenylaryl-is altogether Conjugated diene copolymer and polyolefin are also referred to as olefin copolymer or CP).PMA is by the methacrylate list with different alkyl It is prepared by the mixture of body.The alkyl can be the linear chain or branched chain group with 1-18 carbon atom.Most of PMA are viscosity Modifier and pour-point depressant.In certain embodiments, viscosity index improver is to contain ethylene and one or more advanced Alpha-olefin, such as the polyolefin of propylene.Polymeric viscosity modifier can be with 0.1-10 the weight %, 0.3-5 of lubricant compositions Weight % or 0.5-2.5 weight % exists.

Pour-point depressant that may be useful in the lubricant compositions of disclosed technology includes polyalphaolefin, maleic anhydride- The ester of styrol copolymer, poly- (methyl) acrylate, polyacrylate or polyacrylamide.Pour-point depressant can be with 0.1-10 Weight %, 0.3-5 weight % or 0.5-2.5 weight % is present in lubricating composition.

Demulsifier includes trialkylphosphate and ethylene glycol, ethylene oxide, propylene oxide or their mixture Various polymer and copolymer.

Matal deactivator includes the derivative (usually tolyl-triazole) of benzotriazole, 1,2,4- triazole, benzimidazole, Two Thiobenzimidazole of 2- alkyl or the thio benzothiazole of 2- alkyl two.The matal deactivator is also described as corrosion and inhibits Agent.

Sealed expander includes butylene sulfone derivative Exxon Necton-37^TM(FN1380) and Exxon Mineral Seal Oil^TM(FN3200)。

Other than above-disclosed Ashless friction modifiers, the example of suitable frictional modifier includes the long chain fatty acids of amine Derivative, fatty ester or fat epoxide；Fatty imidazolines, such as the condensation product of carboxylic acid and polyalkylenepolyamines；Alkyl phosphorus The amine salt of acid；Fatty phosphonate ester；Fatty phosphites；Boration phosphatide, borated fatty epoxides；Glyceride；Boration Glyceride；Fatty amine；Alkoxylated fats amine；Borated alkoxylated fatty amine；Hydroxyl and polyhydroxy fatty amine, including tertiary hydroxyl Base fatty amine；Hydroxyalkylamides；The metal salt of fatty acid；The metal salt of alkyl salicylate；FatOxazoline；Fatty ethoxy Base alcohol；The condensation product of carboxylic acid and polyalkylenepolyamines；Or aliphatic carboxylic acid and guanidine, aminoguanidine, urea or thiocarbamide and they The reaction product of salt.

Friction improver can also include material, such as sulfurized fatty compound and alkene, polyalcohol and aliphatic carboxylic acid to Day certain herbaceous plants with big flowers oil or soya-bean oil monoester.

In another embodiment, friction improver can be long-chain fatty acid ester.In another embodiment, long Chain fatty acid ester can be monoesters, and in another embodiment, long-chain fatty acid ester can be triglycerides.

This technology discloses the lubricant prepared completely and handles lubricant additive concentrate for top.Adding Adding agent concentrate includes polyether compound, and in the case where Ashless friction modifiers and optional detersive, this technology expection is existing Lubricant can use 0.5-15 weight % or 05-10 weight % or 0.5-5.0 weight % or 0.5-3.0 weight % or 0.5- 1.5 weight % or 0.5-1.2 weight % multifunctional additive for lubricating oils carry out top processing.Lubricant is handled by top, it is adjustable The frictional behaviour of lubricant is so that processed lubricant is suitable for engine of small motorcycle, even if pretreated lubricant is suitable For in the motorcycle with engine and wet clutch.It should also be understood that one or more above-mentioned " other performance additives " It may be present in the lubricant prepared completely or may be present in multifunctional additive for lubricating oils, condition is gathered in the lubricant prepared completely Rate is effectively treated without falling into range teaching herein in ether compound and Ashless friction modifiers.

The lubricant compositions prepared completely in different implementation scenarios can have the composition as disclosed in following table:

Multifunctional additive for lubricating oils in various embodiments can have the composition as disclosed in following table:

Industrial application

Disclosed technology may include lubricating the method for one of wet clutch or internal combustion engine comprising supply wet type from Clutch or engine lubrication composition, the oil of the lubricating composition comprising (a) with lubricant viscosity, (b) polyether compound, (c) high alkaline detergent, (d) Ashless friction modifiers, (e) dispersing agent, and (f) optionally antioxidant.

Disclosed technology may include the method for lubricating internal combustion engines comprising the above-mentioned lubricating composition of supply engine.

Internal combustion engine can be four-stroke engine.Internal combustion engine can be equipped with emission control systems or turbocharger.Discharge The example of control system includes the particulate filter or system using selective catalytic reduction (SCR).

Internal combustion engine can be port fuel injection or directly injection.In one embodiment, the internal combustion engine is gasoline Directly injection (GDI) engine.

Disclosed technology may include lubricating the method for wet clutch, and wherein wet clutch includes at least one tool Have non-ironing surface clutch disc and at least one with ironing surface clutch disc, this method is included in iron and non-ferric clutch Lubricating composition as described herein is supplied between the interface on piece surface.

Disclosed technology may include the method for reducing the static friction between iron and non-iron surface, such as can have extremely Few one has in non-ironing surface clutch disc and at least one wet clutch with ironing surface clutch disc and is sent out Existing, this method, which is included between iron and non-ferric clutch disc surface, supplies lubricating composition as described herein.

It is expected that lubricant compositions of the invention can be used in wet clutch, i.e. the wherein clutch in dip lubrication agent Piece.This clutch is well-known, and is not described extensively herein, in addition to they generally comprise two or more Outside a piece.Sheet material may include steel (that is, iron material) and nonferrous material, such as paper, ceramic and carbon fiber.This technology is particularly suitable Static friction between reduction steel disc and carbon fiber or glass mat.Although the present invention can be instructed about reduction wet type clutch At least one of the static friction between iron and non-iron surface illustrated in device and dynamic friction, it should be appreciated that, this hair Bright composition can be used for reducing one of the static friction between iron and non-iron surface or dynamic friction in other cases.

Lubricating composition of the invention can have 1.2 weight % or lower total sulfate ash content.Lubricating combination Sulfur content in object can be 1 weight % or lower or 0.8 weight % or lower or 0.5 weight % or lower or 0.3 weight Measure % or lower.In one embodiment, sulfur content can be in the range or 0.01-0.3 of 0.001-0.5 weight % weight Measure %.Phosphorus content can be 0.2 weight % or lower or 0.12 weight % or lower or 0.1 weight % or lower or 0.085 Weight % or lower or 0.08 weight % or lower, or even 0.06 weight % or lower, 0.055 weight % or lower, or 0.05 weight % or lower.In one embodiment, phosphorus content can be 0.04-0.12 weight %.In an embodiment In, phosphorus content can be 100-1000ppm or 200-600ppm.Total sulfate ash content can be the lubricating composition 0.3-1.2 weight % or 0.5-1.1 weight %.In one embodiment, sulfate ash content can be the lubrication The 0.5-1.1 weight % of composition.

In one embodiment, lubricating composition can be characterized as having (i) 0.5 weight % or lower sulfur content, (ii) 0.15 weight % or lower phosphorus content, and (iii) 0.5-1.5 weight % or lower sulfate ash content.

Lubricating composition may be characterized as having following at least one (i) 0.2-0.4 weight % or lower sulfur content, (ii) The phosphorus content of 0.08-0.15 weight %, and (iii) 0.5-1.5 weight % or less sulfate ash content.

Lubricating composition may be characterized as the sulfate ash content with 0.5-1.2 weight %.

TBN value as used herein is (total base number), is measured as the method described in D4739 (buffer).

Lubricant compositions may be characterized as total base number (TBN) content at least 5mg KOH/g.Lubricant compositions can It is characterized as total base number (TBN) content with 6-13mg KOH/g or 7-12mg KOH/g.Lubricant can have XW-Y's SAE viscosity grade, wherein X can be 0,5,10 or 15；It can be 16,20,30,40 or 50 or SAE20 with Y, 30,40, or The single-stage viscosity of SAE50.

Internal combustion engine disclosed herein can have the steel surface in cylinder bore, cylinder body or piston ring.

Internal combustion engine can have steel or aluminium alloy or aluminium composite surface.Internal combustion engine can be aluminum block engines, wherein institute Stating the inner surface of cylinder bore, heat is coated with iron, such as passes through plasma and transmit wire arc (PTWA) hot-spraying technique.Heat coating The surface of iron can be adjusted, to provide hyperfine surface.

Embodiment

The following example provides the description of the invention.These embodiments are non exhaustive and are not intended to limit of the invention Range.

It is prepared for the motorcycle lubricant of a series of 10W-30, as summarized in table 1.The reality of present invention oil of the invention It applies example 1 and 2 and contains polyetheramine, high alkaline detergent, Ashless friction modifiers and dispersing agent and several other conventional lubricantss Additive.Oil of the invention is evaluated and similar with no polyetheramine with liquefaction (control 1)) comparison.

Table 1- lubricating composition

	Control 1	Embodiment 1	Embodiment 2
				Mineral oil	Surplus is to 100%	Surplus is to 100%	Surplus is to 100%
Viscosity improver	0.625	0.625	0.625
				PMA pour-point depressant	0.120	0.120	0.120
Amine antioxidants	0.601	0.601	0.601
				300TBN sulfoacid calcium	0.087	0.087	0.087
400TBN sulfoacid calcium	0.518	0.518	0.518
				255TBN calcium phenoxide	0.150	0.093	0.093
Boration succinimide dispersants	0.100	0.100	0.100
				Succinimide dispersants	1.532	1.532	1.532
Secondary ZDP	0.758	0.758	0.758
				Olefine sulfide	0.100	0.100	0.100
PDMS defoaming agent	0.010	0.010	0.010
				Enhancer compositions
Aminated polyethers (PAG-24A)	-	0.500	0.200
				300TBN sulfoacid calcium	-	-	0.348
Oil base tartrimide	-	-	0.120
				In total¹	100.000	100.000	100.000

¹All handling rates are on oil-free basis.

Evaluate the balance of the quiet and dynamic friction performance of lubricant.

The test of the JASO T 903:2011 of professional standard utilizes the several steel disks and fibre by being enclosed in a measuring head Tie up board group at clutch pack.Clutch pack is operated in temperature controlled oil bath.Then, motor is for rotating Fiberboard is to 3,600RPM, while keeping steel disk is static in measuring head.In this driving phase, there is no be applied to from The pressure of clutch component.Once speed and temperature set-point are satisfied, pressure is applied to clutch pack then to cause to lock.This A event is referred to as dynamic and engages.It is connected to the inertia of the rosette simulating vehicle of the motor.Dynamic joint aging time herein Between, measurement parameter, such as speed and torque, and for calculating dynamic frictional properties index (DFI) and dwell time index (STI). These are the first two parameters classified for engine oil frictional behaviour.Third parameter is referred to as static friction properties index (SFI).For the evaluation, identical testing stand is used, but present evaluation start from being applied to the pressure on clutch with Convenient for locking.The slow-speed of revolution (300RPM), high torque motor loosen for ' cracking ' clutch pack and cause to skid.Again, it turns round Square, speed and other parameters are measured and are used to calculate SFI.For JASO T903:2011MB specification, SFI must fall into 0.5- 1.25。

Table 2- rub measurement

JASO T903:2011	Control 1	Embodiment 1	Embodiment 2
				Dynamic FI (DFI)	2.12	1.73	1.95
Static FI (SFI)	2.14	1.07	1.13
				Dwell time index	2.11	1.77	1.94

Itself the result shows that, lubricant compositions of the invention provide the required reduction of static friction.

It is known that above-mentioned some materials can interact in end formulation, so that the component of end formulation may The difference initially added different from those.The product being consequently formed, including using lubricant of the invention with its intended purpose The product that composition is formed, may be not easy to describe.However, all such modifications and reaction product are included in model of the invention Within enclosing；The present invention includes the lubricant compositions prepared by mixing said ingredients.

As used herein, with the use of its ordinary meaning, this is those skilled in the art for term " hydrocarbyl substituent " or " alkyl " Well known to member.Specifically, it refers to being directly connected to molecule rest part and mainly with the carbon atom of hydrocarbon feature Group.The example of alkyl includes:

(i) hydrocarbon substituent, i.e., aliphatic (for example, alkyl or alkenyl), alicyclic (for example, naphthenic base, cycloalkenyl) replaces Base and aromatics-, what the aromatic substituent and its middle ring of aliphatic series-and alicyclic-substitution were completed by another part of molecule Cyclic substituents (for example, two substituent groups are formed together ring)；

(ii) the hydrocarbon substituent replaced contains the substituent group of non-alkyl, in the context of the present invention, they do not change Main hydrocarbon property (such as halogen (especially chlorine and fluorine), hydroxyl, alkoxy, sulfydryl, alkyl thiol, nitro, the nitrous of substituent group Base and sulfinyl)；

(iii) miscellaneous substituent group, i.e., with the substituent group of main hydrocarbon feature, in the context of the present invention, in ring or chain Containing not being carbon, otherwise it is made of carbon atom；With

(iv) hetero atom includes sulphur, oxygen, nitrogen, and including as pyridyl group, furyl, the substitution of thienyl and imidazole radicals Base.Typically for every ten carbon atoms in alkyl, will be present no more than two, preferably more than a substituents；It is logical Often, substituents are not present in alkyl.

The content of each above-mentioned file is incorporated herein by reference.In addition in embodiment, or ought separately have clear Illustrate, in the present specification prescribed material, reaction condition, molecular weight, carbon atom number and analog, all numerical quantities quilts of amount It is interpreted as being modified by word " about ".Unless otherwise indicated, each chemicals or composition being mentioned above should be interpreted Isomers, by-product, derivative and the commercial grade material for being generally understood as being present in other such materials in commerical grade.So And the amount of each chemical constituent, proposition does not include any solvent or flux oil, can be and exists in commercial materials, unless separately It is described.It should be apparent that upper and lower amount described in this paper, range and ratio limitation can be combined independently.Equally, right It can be used together with the range or amount of any other element in the range and amount of each element of the invention.

As used herein, term " being free of ", which limits, is not present material, and term " being substantially free of " is limited as existing for impurity Amount, such as trace or ineffective dose.

Although explaining the present invention about preferred embodiment, it should be understood that read this specification, various improvement It can be understood by those skilled in the art.It is therefore understood that invention disclosed herein is intended to cover belong to appended claims This kind of improvement of book range.

Claims

1. a kind of lubricant compositions, it includes the oil that (a) has lubricant viscosity, and (b) polyether compound, (c) high alkalinity is peace and quiet Agent, (d) dispersing agent, (e) most preferably Ashless friction modifiers, and (f) optionally antioxidant.

2. lubricant compositions according to claim 1, wherein polyethers is expressed from the next:

RO[CH₂CH(R¹)O]_nA

Wherein R is the alkyl of hydrogen or 1-32 (or 1-26 or 2-26 or 4-24 or 8-20 or 10-20 or 12-18) a carbon atom,

N is the number of 2- about 50 (or 12-36 or 18-30 or 2-20), and

A is selected from hydrogen, R¹,-R⁷NR²R², C=OR⁸With-NR³R³, wherein

R²It is each independently the alkyl of hydrogen or 1-24 (or 2-24 or 4-20 or 8-20 or 12-18 or 2-12) a carbon atom,

R³It is each independently hydrogen, the alkyl of 1-24 (or 2-24 or 4-20 or 8-20 or 12-18 or 2-12) a carbon atom, or- [R⁴N(R⁵)]_pR⁶, wherein R⁴It is C₂-C₁₀Alkylidene,

R⁷And R⁸It independently is the alkyl of hydrogen or 1-6 (or 1-4 or 1-2 or 2-4) a carbon atom, and

P is the number of 1-7.

3. lubricant compositions according to claim 1 or 2, wherein polyether compound is the polyetheramine being expressed from the next:

RO[CH₂CH(R¹)O]_nA

Wherein R is the alkyl of 2-26 (or 4-24 or 8-20 or 10-20 or 12-18) a carbon atom,

A is-R⁷NR²R²,

R²It is each independently the alkyl of hydrogen or 1-24 (or 2-24 or 4-20 or 8-20 or 12-18 or 2-12),

R⁷It is the alkyl of 2-4 carbon atom, and

N is 12-36 (or 18-30).

4. lubricant compositions according to any one of the preceding claims, it includes Ashless friction modifiers, and wherein without Grey friction improver is derived from alpha-hydroxy carboxylic acid compounds.

5. lubricant compositions according to any one of the preceding claims, wherein Ashless friction modifiers exist and derived from alpha- Hydroxycarboxylic acid (usual tartaric acid, citric acid, malic acid, lactic acid, glycolic, the oligomer of the acid, or combinations thereof).

6. lubricant compositions according to any one of the preceding claims, wherein Ashless friction modifiers exist and are tartaric acid Acid imide, ester or amide.

7. lubricant compositions according to any one of the preceding claims, wherein high alkaline detergent includes metalliferous peace and quiet Agent.

8. lubricant compositions according to any one of the preceding claims, wherein high alkaline detergent includes metalliferous peace and quiet Agent and wherein metal are selected from sodium, magnesium and calcium.

9. lubricant compositions according to any one of the preceding claims, wherein high alkaline detergent includes metalliferous peace and quiet Agent and wherein metal are calcium.

10. lubricant compositions according to any one of the preceding claims, wherein high alkaline detergent is selected from sulfonate, phenol Salt, salicylate, salixarate and its mixture.

11. lubricant compositions according to any one of the preceding claims, wherein high alkaline detergent is substantially free of phenates.

12. lubricant compositions according to any one of the preceding claims, wherein detersive includes calcium sulfonate detergents.

13. lubricant compositions according to any one of the preceding claims, wherein dispersing agent is succinimide dispersants.

14. lubricant compositions according to any one of the preceding claims, wherein dispersing agent includes borated dispersants.

15. lubricant compositions according to any one of the preceding claims, it includes antioxidants.

16. lubricant compositions according to any one of the preceding claims, further include molybdate compound.

17. any one of -15 lubricant compositions according to claim 1, wherein composition is substantially free of molybdate compound.

18. lubricant compositions according to any one of the preceding claims, wherein composition is substantially free of phenolic compound.

19. lubricant compositions according to any one of the preceding claims, wherein composition, which includes that (a) is major amount of, has profit The oil of sliding viscosity, (b) 0.05-3.0 weight % (or 0.1-2.0 weight % or 0.1-1.0 weight % or 0.2-0.8 weight %) Polyether compound, (c) 0.05-3.0 weight % (or 0.1-2.0 weight % or 0.1-1.0 weight % or 0.2-0.8 weight %) High alkaline detergent, (d) 0.05-2.0 weight % (or 0.1-1.0 weight % or 0.1-0.8 weight % or 0.2-0.8 weight %) Ashless friction modifiers, and (e) 0.1-12 weight % (or 0.5-8.0 weight % or 1-6.0 weight % or 1.5-6.0 weight Measure %) dispersing agent.

20. a kind of method for lubricating wet clutch comprising supply to wet clutch according to any in preceding claims The lubricant compositions of item.

21. method according to claim 20, wherein wet clutch includes at least one with non-ironing surface clutch disc With at least one with ironing surface clutch disc.

22. a kind of method of the static friction between iron and non-iron surface reduced in wet clutch, wherein wet clutch packet Include at least one with non-ironing surface clutch disc and at least one with ironing surface clutch disc, this method is included in iron According to claim 1 any one of -19 lubricant compositions are supplied between non-ferric clutch disc surface.

23. a kind of method for lubricating engine comprising supply according to claim 1 any one of -19 lubrication to engine Agent composition.

24. method according to claim 23, wherein engine is four-stroke engine.

25. wherein engine is air-cooled engine according to the method for claim 23 or 24.

26. wherein lubricant compositions do not lubricate wet clutch according to the method for any one of claim 23-25.

27. a kind of multifunctional additive for lubricating oils for top processing lubricant compositions, includes (a) 2-35 weight on oil-free basis The polyether compound of % (or 5-30 weight % or 10-25 weight % or 10-20 weight %) is measured, (b) 2-25 weight % (or 3-20 Weight % or 5-20 weight % or 7-15 weight %) Ashless friction modifiers, and (c) 10-80 weight % (or 10-75 weight Measure % or 30-75 weight % or 40-70 weight %) metalliferous high alkaline detergent.

28. multifunctional additive for lubricating oils according to claim 27, wherein polyethers is indicated by formula 1:

RO[CH₂CH(R¹)O]_nA

Formula 1

N is the number of 2- about 50 (or 12-36 or 18-30 or 2-20), and

A is selected from hydrogen, R¹,-R⁷NR²R², C=OR⁸With-NR³R³, wherein

P is the number of 1-7.

29. wherein polyether compound is the polyetheramine being expressed from the next according to the multifunctional additive for lubricating oils of claim 27 or 28:

RO[CH₂CH(R¹)O]_nA

Wherein A is-R⁷NR²R², and

R²It is each independently the alkyl of hydrogen or 1-24 (or 2-24 or 4-20 or 8-20 or 12-18 or 2-12).

30. wherein Ashless friction modifiers are derived from Alpha-hydroxy according to the multifunctional additive for lubricating oils of any one of claim 27-30 Carboxylic acid.

31. wherein Ashless friction modifiers are derived from winestone according to the multifunctional additive for lubricating oils of any one of claim 27-30 Acid, citric acid, malic acid, lactic acid, glycolic, the oligomer of the acid, or combinations thereof.

32. wherein Ashless friction modifiers are the acyls of tartaric acid according to the multifunctional additive for lubricating oils of any one of claim 27-31 Imines, ester or amide.

33. a kind of lubricant compositions, it includes (a) the major amount of oil with lubricant viscosity, and (b) 0.5-5.0 weight % The multifunctional additive for lubricating oils according to any one of claim 27-32 of (or 0.5-3.0 weight % or 0.5-1.5 weight %).