CN101463286A - Lubricant compositions with low HTHS for a given SAE viscosity grade - Google Patents
Lubricant compositions with low HTHS for a given SAE viscosity grade Download PDFInfo
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- CN101463286A CN101463286A CNA2008101871396A CN200810187139A CN101463286A CN 101463286 A CN101463286 A CN 101463286A CN A2008101871396 A CNA2008101871396 A CN A2008101871396A CN 200810187139 A CN200810187139 A CN 200810187139A CN 101463286 A CN101463286 A CN 101463286A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M157/00—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
- C10M143/10—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing aromatic monomer, e.g. styrene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- 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
- C10M169/047—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/019—Shear stability
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/54—Fuel economy
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
A lubricant composition that exhibits low high temperature high shear viscosity is disclosed. The lubricant composition is made up of a first polymer having a kinematic viscosity ratio less than or equal to 0.25 and a shear stability index (SSI) equal to or greater than 20 percent and base oil having a viscosity index equal to or greater than 120.
Description
Technical field
The present invention relates to demonstrate certain performance characteristic, the lubricant compositions that particularly low high-temperature high shear viscosity is measured.
Background technology
Lubricant compositions is known in the art.Usually, lubricant compositions is made up of base oil (base oil) and various additive.According to its end-use, lubricant compositions must satisfy the specific performance properties feature, measures (HTHS) such as but not limited to kinematic viscosity and high-temperature high shear viscosity.
The HTHS value of used lubricant compositions is relevant in the fuel economy of vehicle known in the art and the vehicle.The vehicle that use has the lubricant compositions of low HTHS value demonstrates improved fuel economy.For every kind of SAE viscosity grade, the classification of SAE J300 engine oil viscosity has been made explanation to the minimum HTHS of lubricant compositions.Therefore, estimate to have or near the lubricant compositions of the desired minimum HTHS of the SAE viscosity grade fuel economy that will offer the best.
The invention provides a kind of lubricant compositions that viscosity index is equal to or greater than 120 base oil that comprises, it demonstrates for the minimum of its SAE viscosity grade or near minimum HTHS.Lubricant compositions of the present invention comprise viscosity index be equal to or greater than 120 base oil and kinematic viscosity ratio be less than or equal to 0.25 and shear stability index (SSI) be equal to or greater than 20% first polymkeric substance.
Summary of the invention
In the indefiniteness embodiment, lubricant compositions of the present invention comprises: have be less than or equal to 0.25 kinematic viscosity ratio (such as in the specification sheets of back definition) and have first polymkeric substance that is equal to or greater than 20% shear stability index (SSI); And have the base oil that is equal to or greater than 120 viscosity index.
In another indefiniteness embodiment, lubricant compositions of the present invention comprises: have and be less than or equal to 0.25 kinematic viscosity ratio and have the polymkeric substance that is equal to or greater than 20% shear stability index (SSI); And have the base oil that is equal to or greater than 120 viscosity index, wherein in the lubricant compositions concentration of phosphorus less than the concentration of 0.08 weight % and sulphur less than 0.5 weight %.
Embodiment
Except as otherwise noted, the numeral that should understand all expression group components, reaction conditions, size, physical properties, processing parameter and its similar parameters used in specification sheets and claims is modified by term " about " in all cases.Therefore, unless make opposite explanation, the numerical value that describes in detail in follow-up specification sheets and claims can be wished the character that obtains and be changed according to the present invention.Each numerical value should be understood at the figure place of significant figure of report and common rounding method at least, and should not think that it is intended to attempt to limit the application to identical with the scope of claims.In addition, should understand all scopes disclosed herein and comprise the value of scope of initial sum termination and any and all fall into wherein subregion.For example, should think that described scope " 1 to 10 " comprises any and whole subregions of (and comprising 1 and 10) between minimum value 1 and maximum value 10; Promptly originate in minimum value 1 or bigger value and end at all subregions of maximum value 10 or littler value, for example 5.5 to 10.United States Patent (USP) of being mentioned in follow-up specification sheets or patent documentation or reference are also incorporated present specification by reference into, and to be interpreted as be all to incorporate the application into.
The employed following term definition of this paper is as follows.
(A) mixture of base oil-one or more oil base stock (basestocks).
(B) temperature profile of kinematic viscosity-record according to ASTM D445.
(C) the kinematic viscosity ratio-polymkeric substance of polymkeric substance in solution 150 ℃ kinematic viscosity (kv150) divided by the kinematic viscosity (kv100) of polymers soln at 100 ℃.Between 60 ℃ and 70 ℃, the dilution that the viscosity modifier enriched material in neutral 100 oil base stock of API group I solvent was carried out 45 minutes prepares polymers soln.Measure kv100 and kv150 according to ASTM D445.
Shown three kinds of different polymer concentrates compositions in the solution used herein in the following table 1, and the kv100 of polymers soln, kv150 and kinematic viscosity ratio.Three kinds of polymer concentrates can be purchased.Polymer concentrates 1 can be used as SV145 and is purchased the USA from Infineum; Polymer concentrates 2 can be used as SV265 and is purchased the USA from Infineum; Polymer concentrates 3 can be used as Paratone 8451 and is purchased the Corporation from Chevron.
Table 1
| Component | Polymer concentrates 1 in the solution | Polymer concentrates 2 in the solution | Polymer concentrates 3 in the solution |
| Polymer concentrates 1 | 24.4 | ||
| Polymer concentrates 2 | 23.0 | ||
| Polymer concentrates 3 | 27.0 | ||
| Neutral 100 oil base stock of API group I solvent | 75.6 | 77.0 | 73.0 |
| Performance | |||
| kv100[cSt] | 30.48 | 30.50 | 29.96 |
| kv150[cSt] | 4.65 | 12.44 | 11.65 |
| kv150/kv100 | 0.15 | 0.41 | 0.39 |
(D) at-30 ℃ CCS[cp]-measure according to ASTM D5239.
(E) at 150 ℃ HTHS[cp]-measure according to ASTM D4741.
(F) shear stability index-measure according to ASTM D6278.
(G)
Wherein, c is polymer weight %, and kv (polymkeric substance+oil) is the kv100 of polymers soln, and kv (oil) is the kv100 of oil.Measure kv according to ASTM D445.
This paper discusses various types of base oils and oil base stock." the Engine Oil Licensing and Certification System " that the definition of oil base stock and American Petroleum Institute (API) (API) publish, Industry Services Department, Fourteenth Edition, December 1996, Addendum 1, the definition unanimity among the December 1998.
Lubricant compositions of the present invention comprises the base oil with 120 the viscosity index scope of being equal to or greater than and has and is less than or equal to 0.25 kinematic viscosity ratio and has first polymkeric substance that is equal to or greater than 20% shear stability index (SSI).
In indefiniteness embodiment of the present invention, base oil comprises group III oil base stock.Group III oil base stock comprises more than or equal to 90% saturates and is less than or equal to 0.03% sulphur, and has the viscosity index more than or equal to 120.In another indefiniteness embodiment of the present invention, base oil comprises group IV oil base stock.In another indefiniteness embodiment of the present invention, base oil comprises group III oil base stock and group IV oil base stock.In another indefiniteness embodiment of the present invention, base oil comprises group IV and group V oil base stock.In another indefiniteness embodiment of the present invention, base oil comprises group II, group IV and group V oil base stock.
In indefiniteness embodiment of the present invention, use solution-air (" GTL ") method to prepare oil base stock.GTL is used for Sweet natural gas or other carburet hydrogen are changed into method of refining than long chain hydrocarbon.For example, can use GTL by direct conversion or by using Fischer-Tropsch process to become liquid fuel as the gas reforming that intermediate will be rich in methane with synthetic gas.As known in the art, can use isomerization catalyst to prepare group III oil base stock among the GTL.
According to the present invention, lubricant compositions comprises at least a polymkeric substance (" first polymkeric substance "), it has the kinematic viscosity ratio that is less than or equal to 0.25 and the shear stability index (SSI) that is equal to or greater than 20%, for example is equal to or greater than 35% or be equal to or greater than 45%.
In indefiniteness embodiment of the present invention, first polymkeric substance comprises the vinylbenzene of minimum 5 weight %.
In another indefiniteness embodiment of the present invention, first polymkeric substance has and is equal to or greater than 2.0 multiviscosisty efficient (TE), for example is equal to or greater than 2.4 or be equal to or greater than 2.8.
In indefiniteness embodiment of the present invention, first polymkeric substance that is fit to comprises conventional segmented copolymer (normal block copolymer) (being real segmented copolymer (true blockcopolymer)) or statistic copolymer (random block copolymer).Conventional segmented copolymer can have the conjugated diolefine of 4 to 10 (for example 4 to 6) carbon atoms or aromatics that (2) have the vinyl substituted of 8 to 12 (for example 8 or 9) carbon atoms makes by (1).
In indefiniteness embodiment of the present invention, segmented copolymer is made by conjugated diolefine.The conjugated diolefine that is fit to comprises piperylene, 2,3-dimethyl-1,3-butadiene, chloroprene, isoprene and 1,3-butadiene, wherein preferred especially isoprene and 1,3-butadiene.Can use the mixture of described conjugated diolefine.
In indefiniteness embodiment of the present invention, segmented copolymer is made by the aromatics of vinyl substituted.The aromatics of the vinyl substituted that is fit to comprises vinylbenzene, alpha-methyl styrene, o-methyl styrene, a vinyl toluene, p-methylstyrene, to t-butyl styrene.
In indefiniteness embodiment of the present invention, conventional segmented copolymer has 2 to 5 altogether (for example 2 or the 3) aromatics of vinyl substituted and polymer segments of conjugated diolefine, and has the polymer segment of aromatics of at least one described vinyl substituted and the polymer segment of at least one described conjugated diolefine.According to more detailed description hereinafter the conjugated diolefine segment is carried out hydrogenation.Conventional segmented copolymer can be a linear block copolymers, and the mainly long sequence of another of the main long sequence and second (segment II) of one of them monomeric unit (segment I), the 3rd (segment III), the 4th (segment IV) or the 5th (segment V) monomeric unit is connected.
Following document discloses the multipolymer that is fit to and therefore by with reference to incorporating this paper: US5 into, and 429,758, US 5,429,758.
In this embodiment, the scope of the aromatic content of the vinyl substituted of these multipolymers (being the aromatics segmental total amount of vinyl substituted in the conventional segmented copolymer) is from 20 weight % to 70 weight %, for example from 40 weight % to 60 weight %.Therefore, the scope of the aliphatics conjugated diolefine content of these multipolymers (being diene segment total amount) is from 30 weight % to 80 weight %, for example from 40 weight % to 60 weight %.
Can prepare described conventional segmented copolymer by ordinary method known in the art.In indefiniteness embodiment of the present invention, for example can using, basic metal hydrocarbon (for example s-butyl lithium) prepares multipolymer as catalyst for copolymerization by anionic copolymerization.
The commercial examples of aforesaid conventional segmented copolymer is Infineum SV140, and it is from Infineum U.S.A (Linden, NJ) the hydrogenation styrene-isoprene segment of Huo Deing.
Usually, as known in the art the form of polymkeric substance of the present invention with enriched material joined in the lubricant compositions.Enriched material comprises one or more components in the oil.Typical enriched material comprises the polymkeric substance of 3 to 25 weight %.
In indefiniteness embodiment of the present invention, composition comprises more than one polymkeric substance.In this embodiment, composition comprises the first above-mentioned polymkeric substance and " second polymkeric substance ".The example that is fit to of second polymkeric substance includes but not limited to for example polybutene of olefin polymer, the hydrogenation polymkeric substance of vinylbenzene and isoprene and/or divinyl and multipolymer and terpolymer, the polymkeric substance of alkyl acrylate or alkylmethacrylate, the multipolymer of alkyl methacrylate and N-vinyl pyrrolidone or dimethylaminoethyl acrylate methyl base aminoalkyl ester, ethylene, propylene and reactive monomer be back grafting (post-graft) multipolymer of maleic anhydride for example, phenylethylene-maleic anhydride polymkeric substance with alkohol and amine afterreaction (post-react).Can use these materials that the viscosity of hope is provided in lubricant compositions.
According to the present invention, demonstrate the low HTHS value of the more approaching minimum HTHS of traditional lubrication agent composition that is compared to this grade for the lubricant compositions of concrete SAE viscosity grade.For example, the minimum HTHS for the 5W30 lubricant compositions is 2.9.Comprise that the SAE engine oil viscosity that minimum HTHS requires requires classification to see table 2.
The requirement of table 2.SAE J300 engine oil viscosity
Lubricant compositions of the present invention is contained different SAE J300 viscosity grades.In various indefiniteness embodiments, lubricant compositions of the present invention satisfies the requirement of SAE J300 viscosity grade 0Wx or 5Wx, and wherein x is 10,20,30 or 40.
In indefiniteness embodiment of the present invention, lubricant compositions comprises washing composition inhibitor combination (package).Washing composition inhibitor combination comprises following one or more: contain the washing composition, antioxidant, antiwear agents, rust-preventive agent, defoamer, demulsifying compound, pour point reducer of metal or ash content etc.
Contain washing composition that metal or ash content form and have as washing composition, therefore reduce wear and corrode and prolong life-span of engine to reduce or to remove throw out and as the function of acid acceptor or rust-preventive agent.Washing composition comprises the polar head with long hydrophobic tail usually, and wherein polar head comprises the metal-salt of acidic organic compound.Salt can comprise the metal of basic stoichiometry, usually it is described as normal salt or neutral salt in this case, and has from 0 to 80 total basicnumber or TBN (can measure by ASTM D2896) usually.By make excessive metallic compound for example oxide compound or oxyhydroxide and sour gas for example carbon dioxide reaction can comprise a large amount of metal base.The overbasic washing composition that obtains comprises as metal base (for example carbonate) washing composition that closes during micella is outer field.Described overbasic washing composition can have 150 or higher TBN, and normally from 250 to 450 or higher.
Operable washing composition comprise metal particularly basic metal or alkaline-earth metal for example the oily molten neutrality of sodium, potassium, lithium, calcium and magnesium or overbasic sulfonate, phenates, sulfurized phenates, thio-phosphonates, salicylate, naphthenate and other oil soluble carboxylate salt (being subjected to the restriction of this paper).The metal of normal use is can be present in lubricant simultaneously with the calcium in the washing composition and the mixture of magnesium and calcium and/or magnesium and sodium.Common metal detergent comprises TBN more than or equal to 250, for example from 250 to 450 overbasic calcium sulphonate, TBN more than or equal to 50 neutral and overbasic phenol calcium and TBN more than or equal to 50 sulfurized phenates.
Can prepare sulfonate by the sulfonic acid that usually obtains by for example sulfonation of those aromatic hydrocarbon that replace from petroleum fractionating or by the alkyl that the aromatic hydrocarbon alkylation obtains.Example comprises by to benzene,toluene,xylene, naphthalene, phenylbenzene or its halo derivatives those materials of obtaining of chlorobenzene, toluene(mono)chloride and chloronaphthalene alkylation for example.Can be under the condition that has catalyzer to exist carry out alkylation to alkylating agent more than 70 carbon atoms by having 3.The aromatics part that each alkyl of aromatic alkyl sulfonate replaces comprises 9 to 80 or more carbon atoms usually.
Oil-soluble sulfonic acid salt or alkyl aryl sulphonic acid can neutralize with oxide compound, oxyhydroxide, alkoxide, carbonate, carboxylate salt, sulfide, sulfhydrate, nitrate, borate and the ether of metal.The selection of metallic compound amount is relevant with the desirable TBN of final product, but needed 100 to 220 weight % of stoichiometry normally.
Dialkyl phosphorodithioic acid metal-salt is often used as antiwear agents and antioxidant.Metal can be basic metal or alkaline-earth metal or aluminium, lead, tin, molybdenum, magnesium, nickel or copper.The amount of the zinc salt that uses in the lubricating oil is normally based on 0.1 to 10 weight % of the gross weight of lubricating oil composition, for example 0.2 to 2 weight %.It can at first make one or more alcohol or phenol and P usually according to known technology
2S
5Reaction forms dialkyl phosphorodithioic acid (DDPA), and uses in the zn cpds subsequently and the DDPA that forms preparation.The prepared in reaction phosphorodithioic acid of mixture that for example, can be by primary alconol and secondary alcohol.Perhaps, can prepare many phosphorodithioic acid, the hydrocarbyl group on one of them all is that Zhong Jituan and the hydrocarbyl group on another all are uncle's groups.Can use any alkalescence or neutral zn cpds to prepare zinc salt, but the most normally used be oxide compound, oxyhydroxide and carbonate.Because use excessive basic zinc compound in neutralization reaction, commercial additive comprises excessive zinc usually.
The dialkyl zinc dithiophosphate is the oil soluble salt of dialkyl phosphorodithioic acid, and it can be represented with following formula:
Wherein R and R ' comprise 1 to 18 2 to 12 carbon atoms and comprise for example identical or different hydrocarbyl group of groups such as alkyl, alkenyl, aryl, arylalkyl, alkaryl and alicyclic group for example.In the indefiniteness embodiment, R and R ' group are the alkyl groups of 2 to 8 carbon atoms.Therefore, group can be for example ethyl, n-propyl, sec.-propyl, normal-butyl, isobutyl-, sec-butyl, amyl group, n-hexyl, isohexyl, n-octyl, decyl, dodecyl, octadecyl, 2-ethylhexyl, phenyl, butyl phenyl, cyclohexyl, methylcyclopentyl, propenyl, butenyl.In order to obtain oil soluble, the sum of carbon atom in the phosphorodithioic acid (being R and R ') normally 5 or bigger.Therefore, the dialkyl zinc dithiophosphate can comprise zinc dialkyl dithiophosphate.The alcohol that is easy to be used for to introduce at least 50 (mole) % of hydrocarbyl group in phosphorodithioic acid is secondary alcohol.
Can use the secondary alcohol of bigger percentage composition.In some cases, also may need high nitrogen systems.Therefore, the alcohol that is used to introduce hydrocarbyl group can be greater than the secondary alcohol of 60 moles of % or greater than the secondary alcohol of 90 moles of %.The metal dithionite of Zhong Jituan for phosphoric acid salt in test (for example Sequence VE (ASTM D5302) and GM 6.2L test) be fit to provide better wear control.The high-level nitrogenous TBN that the present invention needs is used to control the viscosity relevant with cigarette ash can increase and weares and teares and corrosive nature.
Oxidation retarder or antioxidant reduce the tendency of using the mineral oil in fluid deterioration, and this deterioration can for example the mud of metallic surface and lacquer shape throw out and viscosity build-up obtain proof by oxidation products.Described oxidation retarder comprises hindered phenol, oil soluble phenates and sulfurized phenates, phosphorus sulfuration or sulfurized hydrocarbon, the ester of phosphorated acid, metal thiocarbamate, United States Patent (USP) the 4th, 867, No. 890 described oil-soluble copper compounds and contain the compound of molybdenum.The use of described compound is subjected to the restriction of this paper.
In one aspect of the invention, lubricant comprises at least 0.0008 mole of % hindered phenol antioxidant.Usually, hindered phenol is the oil soluble phenol that replacement takes place at one or two ortho position.The phenol that the compound that is fit to comprises monohydroxy and monokaryon for example 2,6-two tertiary alkyl phenol (2,6 di t butyl phenol, 2 for example, 4,6-tri-butyl-phenol, 2-tert.-butyl phenol, 4-alkyl-2,6-tert.-butyl phenol, 2,6-diisopropyl phenol and 2,6-dimethyl-4-tert.-butyl phenol).Other hindered phenol that is fit to comprises for example alkylidene group bridging hindered phenol (4,4-methylene-bis (6-tert-butyl o cresols), 4,4 '-methylene-bis (2-tert-pentyl ortho-cresol) and 2,2 '-methylene-bis (2,6 di t butyl phenol)) of poly-hydroxy and multinuclear phenol.Hindered phenol can boronation or sulfuration.
Can use the rust-preventive agent that is selected from nonionic polyoxyalkylene polyol and its ester, polyoxyalkylene phenol and negatively charged ion alkylsulphonic acid.
Can use and have copper and plumbous corrosion inhibitor.Usually, described compound is thiadiazoles polysulfide, its derivative and its polymkeric substance that comprises 5 to 50 carbon atoms.For example, normally those are described in United States Patent (USP) the 2nd, 719, and 125,2,719,126 and 3,087,1,3 in No. 932, the derivative of 4-thiadiazoles.Other similar substance description is in United States Patent (USP) the 3rd, 821, in 236,3,904,537,4,097,387,4,107,059,4,136,043,4,188,299 and 4,193,882.Other additive is that for example those are described in british patent specification the 1st, 560, the sulfo-and the polythio sulfinyl amine of the thiadiazoles in No. 830.Benzotriazole derivatives belongs to examples of such additives too.When comprising these compounds in the lubricant compositions, the amount of its existence is no more than 0.2 weight % of active ingredient usually.
Can use a small amount of emulsion breaking component.The emulsion breaking component that is fit to is described among the EP 330,522.It obtains by making alkylene oxide and the adducts reaction that obtains by di-epoxide and polyhydroxy-alcohol reaction.Handle the normally active ingredient of 0.001 to 0.05 quality % of ratio.
Pour point reducer (being also referred to as the mobile improving agent of lubricating oil) reduces liquid-flow or liquid can be toppled over required minimum temperature.Described additive is known.Usually, those additives of improvement liquid sub flowability are fumaric acid C
8To C
18Dialkyl/vinyl acetate copolymer and polyalkyl methacrylate.Equally, dialkyl fumarate and vinyl-acetic ester can be used as compatibilized reagent.
When certain base polymer of using in the production of engine oil viscosity properties-correcting agent is dissolved in oil base stock, can take place incompatible.Can provide the inhomogeneous molecular dispersion of the polymkeric substance that separates tendency or grainy appearance to take place immediately to mixture.This problem can have by use and is connected the compatibilizing agent that has fragmentation or prevent to pile up the hydrocarbyl group in the functional group of function and is resolved.
Chemical compound lot comprises polysiloxane-based defoamer, and for example silicone oil or polydimethylsiloxane can control foam.
Some above-mentioned additives can provide multiple effect; Therefore for example independent additive can be used as dispersion agent-oxidation retarder.These methods are known and do not need further elaboration.The important point is that the interpolation of above-mentioned other component must be followed restriction as herein described.
In the indefiniteness embodiment, the present invention comprises one or more ashless dispersants.Ashless dispersant can comprise polyalkenyl or boronation polymerase chain alkenyl succinimide, and wherein alkenyl group is derived from C
3-C
4Alkene, particularly number-average molecular weight are about 700 to 5,000 polyisobutenyl.Other known dispersion agent comprises the succinyl oxide that hydrocarbon replaces, polyisobutylene succinic anhydride for example, oil soluble polyol ester and You Rong oxazoline and be derived from succinyl oxide that hydrocarbon replaces and the Nei Zhi oxazoline dispersion agent of dibasic amino alcohol.
In the indefiniteness embodiment, lubricant compositions comprises the ashless dispersant of 0.5 to 5 weight %.
In the indefiniteness embodiment, the present invention comprises ashless detergent.These ashless detergents and dispersion agent only are a kind of appellations, although the fact is the composition according to them, they can produce non-volatile substance for example boron oxide or Vanadium Pentoxide in FLAKES in burning; Yet they do not comprise metal usually, therefore do not produce metallic ash content in burning.Many types are known in the art, and are adapted at using in the lubricant compositions.They comprise following these materials:
(1) comprise for example for example phenol and alcohol of amine, organic hydroxy compounds of at least 34 carboxylic acid (or derivatives thereof) and nitrogenous compound, and/or the reaction product of alkaline inorganic material.The case description of these materials is in following patent: United States Patent (USP) the 3rd, 219, and 666,4,234,435,4,904,401 and 6,165, No. 235, these patents are incorporated this paper by reference into.
(2) relative high-molecular-weight aliphatic or alicyclic halogenide and the amine reaction product of oxyalkylene polyamine for example.The case description of these materials is in following patent: United States Patent (USP) the 3rd, 275, and 554,3,438,757,3,454,555 and 3,565, No. 804, these patents are incorporated this paper by reference into.
(3) product of following reaction, promptly wherein alkyl group comprises the alkylphenol of at least 30 carbon atoms, and with aldehyde and amine, it can be regarded as " Mannich dispersion agent ".The case description of these materials is in following patent: United States Patent (USP) the 3rd, 649, and 229,3,697,574,3,725,277,3,725,480,3,726,882 and 3,980, No. 569, these patents are incorporated this paper by reference into.
(4) with amine or Mannich dispersion agent and described reagent for example the succinyl oxide, nitrile, epoxide, boron compound, phosphorus compound or its analogue that replace of urea, thiocarbamide, dithiocarbonic anhydride, aldehyde, ketone, carboxylic acid, hydrocarbon carry out the product that aftertreatment obtains.The case description of these materials is in following patent: United States Patent (USP) the 3rd, 639,242,3,649,229,3,649,659,3,658,836,3,697,574,3,702,757,3,703,536,3,704,308 and 3,708, No. 422, these patents are incorporated this paper by reference into.
(5) oil-soluble monomer decyl-octyl methacrylate, vinyl decyl ethers and high molecular weight olefin and the monomer that the comprises polar substituent interpretation of the acrylate that replaces of acrylic-amino alkyl ester or acrylamide and polyoxyethylene for example for example.The case description of these materials is in following patent: United States Patent (USP) the 3rd, 329, and 658,3,449,250,3,519,565,3,666,730,3,687,849 and 3,702, No. 300, these patents are incorporated this paper by reference into.
Washing composition inhibitor of the present invention combination can comprise phosphorus, sulphur, chlorine, ash and grade.In indefiniteness embodiment of the present invention, lubricant compositions comprises the phosphorus less than 0.08 weight %.In another indefiniteness embodiment of the present invention, lubricant compositions comprises the sulphur less than 0.5 weight %.In another indefiniteness embodiment of the present invention, lubricant compositions comprises less than 150PPM for example less than the chlorine of 50PPM.And in another indefiniteness embodiment of the present invention, lubricant compositions comprises the ash content of 0.35 to 2 quality %.
Embodiment
Following indefiniteness embodiment (embodiment 1-12) describes the present invention.Use by 60 ℃ with 70 ℃ between 100 groups of I base oils of first polymer concentrates and the SN that is purchased are mixed preparation in 45 minutes various enriched materials obtain the prescription of different embodiment.Use the first different polymer concentrates (polymer concentrates 1-3) to obtain the prescription of different embodiment.Polymer concentrates 1 is purchased the USA from Infineum as SV145; Polymer concentrates 2 is purchased the USA from Infineum as SV265; Polymer concentrates 3 is purchased from ChevronCorporation as Paratone 8451.The kinematic viscosity ratio of first polymer concentrates of using among the embodiment and shear stability index (SSI) are presented in the table 12.
According to currently known methods and technology by various oil base stock and above-mentioned enriched material are mixed the lubricant compositions for preparing several different gradess.The viscometric properties of the different base oils (base oil 1-7) that are used to illustrate embodiment has been described in the table 11.
In various embodiments, component 1 is to make up as the washing composition inhibitor that P5224 is purchased from Infineum USA; Component 2 is to be purchased pour point reducer from Infineum USA as V385; Component 3 is to make up as the washing composition inhibitor that P6000 is purchased from Infineum USA.
Embodiment 1-3 represents the 5W20 lubricant compositions.Shown composition information in the table 3 for embodiment 1-3.Embodiment 4-6 represents the 5W30 lubricant compositions.Shown composition information in the table 5 for embodiment 5-6.Embodiment 7-9 represents 0W30 PAO lubricant compositions.Shown composition information in the table 7 for embodiment 7-9.Embodiment 10-12 represents 0W20 PAO lubricant compositions.Shown composition information in the table 9 for embodiment 10-19.
Under 100 ℃ and 150 ℃, measure the kinematic viscosity of exemplary composition according to ASTM D445.Obtain the HTHS of lubricant compositions according to ASTM D4741.Table 4,6,8 and 10 has shown the result of various embodiment.
Table 3. is for the composition information of exemplary 5W20 lubricant
| Component | Embodiment 1[weight %] | Embodiment 2[weight %] | Embodiment 3[weight %] |
| Component 1 | 9.60 | 9.60 | 9.60 |
| Oil base stock 1 | 38.36 | 39.31 | 39.95 |
| Oil base stock 2 | 46.90 | 47.90 | 46.63 |
| Polymer concentrates 1 | 4.93 | 0.00 | 0.00 |
| Polymer concentrates 2 | 0.00 | 2.99 | 0.00 |
| Polymer concentrates 3 | 0.00 | 0.00 | 3.61 |
| Component 2 | 0.20 | 0.20 | 0.20 |
Table 4. is for the performance information of exemplary 5W20 lubricant
| Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| Kv100[cSt] | 8.56 | 8.66 | 8.73 |
| -30 ℃ CCS[cp] | 5570 | 5620 | 5440 |
| 150 ℃ HTHS[cp] | 2.61 | 2.71 | 2.77 |
Conclusion
Embodiment 1-3 is illustrated the 5W20 lubricant compositions, and wherein embodiment 1 is to explanation of the present invention.As desired, embodiment 1 has the minimum HTHS of exemplary 5W20 lubricant compositions.
Table 5. is for the composition information of the super lubricant of exemplary 5W30
| Component | Embodiment 4[weight %] | Embodiment 5[weight %] | Embodiment 6[weight %] |
| Component 1 | 9.60 | 9.60 | 9.60 |
| Oil base stock 1 | 30.85 | 32.68 | 32.12 |
| Oil base stock 2 | 50.35 | 52.00 | 51.64 |
| Polymer concentrates 1 | 9.00 | 0.00 | 0.00 |
| Polymer concentrates 2 | 0.00 | 5.52 | 0.00 |
| Polymer concentrates 3 | 0.00 | 0.00 | 6.44 |
| Component 2 | 0.20 | 0.20 | 0.20 |
Table 6. is for the performance information of the super lubricant of exemplary 5W30
| Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Kv100[cSt] | 10.82 | 10.81 | 10.86 |
| -30 ℃ CCS[cp] | 6250 | 6510 | 6470 |
| 150 ℃ HTHS[cp] | 2.93 | 3.12 | 3.22 |
Conclusion
Embodiment 4-6 is illustrated the 5W30 lubricant compositions, and wherein embodiment 4 is to explanation of the present invention.As desired, embodiment 4 has the minimum HTHS of exemplary 5W30 lubricant compositions.
Table 7. is for the composition information of exemplary 0W30 PAO lubricant
| Component | Embodiment 7[weight %] | Embodiment 8[weight %] | Embodiment 9[weight %] |
| Component 3 | 12.00 | 12.00 | 12.00 |
| Polymer concentrates 1 | 9.71 | 0.00 | 0.00 |
| Polymer concentrates 2 | 0.00 | 6.09 | 0.00 |
| Polymer concentrates 3 | 0.00 | 0.00 | 6.91 |
| Oil base stock 7 | 2.00 | 2.00 | 2.00 |
| Oil base stock 5 | 45.05 | 48.26 | 47.55 |
| Oil base stock 6 | 31.04 | 31.45 | 31.34 |
| Component 2 | 0.20 | 0.20 | 0.20 |
Table 8. is for the performance information of exemplary 0W30 PAO lubricant
| Embodiment 7 | Embodiment 8 | Embodiment 9 | |
| Kv100[cSt] | 10.69 | 10.82 | 10.82 |
| -35 ℃ CCS[cp] | 5930 | 5870 | 5670 |
| 150 ℃ HTHS[cp] | 2.93 | 3.14 | 3.28 |
Conclusion
Embodiment 7-9 is illustrated 0W30 PAO lubricant compositions, and wherein embodiment 7 is to explanation of the present invention.As desired, embodiment 7 has the minimum HTHS of exemplary 5W30 PAO lubricant compositions.
Table 9. is for the composition information of exemplary 0W20 PAO lubricant
| Component | Embodiment 10 [weight %] | Embodiment 11 [weight %] | Embodiment 12 [weight %] |
| Component 3 | 12.00 | 12.00 | 12.00 |
| Polymer concentrates 1 | 5.30 | 0.00 | 0.00 |
| Polymer concentrates 2 | 0.00 | 3.23 | 0.00 |
| Polymer concentrates 3 | 0.00 | 0.00 | 3.68 |
| Oil base stock 7 | 2.00 | 2.00 | 2.00 |
| Oil base stock 4 | 46.85 | 48.92 | 48.47 |
| Oil base stock 5 | 33.65 | 33.65 | 33.65 |
| Component 2 | 0.20 | 0.20 | 0.20 |
Table 10. is for the performance information of exemplary 0W20 PAO lubricant
| Embodiment 10 | Embodiment 11 | Embodiment 12 | |
| Kv100[cSt] | 8.83 | 8.91 | 8.93 |
| -35 ℃ CCS[cp] | 5720 | 5620 | 5540 |
| 150 ℃ HTHS[cp] | 2.70 | 2.80 | 2.87 |
Conclusion
Embodiment 10-12 is illustrated 0W20 PAO lubricant compositions, and wherein embodiment 10 is to explanation of the present invention.As desired, embodiment 10 has the minimum HTHS of exemplary 5W20 PAO lubricant compositions.
The basic oil viscosity of table 11.
| Oil base stock | Kv in the time of 40 ℃ | Kv in the time of 100 ℃ | VI |
| Oil base stock 1 | 19.70 | 4.26 | 125 |
| Oil base stock 2 | 44.49 | 7.36 | 130 |
| Oil base stock 3 | 19.64 | 4.03 | 103 |
| Oil base stock 4 | 54.95 | 7.69 | 104 |
| Oil base stock 5 | 17.61 | 3.98 | 126 |
| Oil base stock 6 | 47.44 | 7.95 | 139 |
| Oil base stock 7 | 18.79 | 4.26 | 138 |
The description of table 12. polymer concentrates 1-3
| The kinematic viscosity ratio | Shear stability index [%] | |
| Polymer concentrates 1 | 0.15 | 52.8 |
| Polymer concentrates 2 | 0.41 | 7.0 |
| Polymer concentrates 3 | 0.39 | 49.7 |
According to ASTM D6278, use and measure by the shear stability index of polymer concentrates in the polymers soln his-and-hers watches 12 that polymer concentrates 1,2 and 3 is mixed with respectively, and group I oil base stock has the kv100 of 4.70cSt.The kv100 of solution is 15.0 ± 0.2cSt.
Claims (13)
1, a kind of lubricant compositions comprises:
The kinematic viscosity ratio be less than or equal to 0.25 and shear stability index (SSI) be equal to or greater than 20% first polymkeric substance; With
Viscosity index is equal to or greater than 120 base oil.
2, lubricant compositions as claimed in claim 1, wherein first polymkeric substance comprises the vinylbenzene of minimum 5 weight %.
3, lubricant compositions as claimed in claim 1, wherein first polymkeric substance comprises conventional segmented copolymer (being real segmented copolymer) or statistic copolymer.
4, lubricant compositions as claimed in claim 1 further comprises second polymkeric substance.
5, lubricant compositions as claimed in claim 4, wherein second polymkeric substance multipolymer, ethylene, propylene and the reactive monomer for example back graft copolymer, the group of forming with the post-reacted phenylethylene-maleic anhydride polymkeric substance of alkohol and amine of maleic anhydride that are selected from polymkeric substance, alkyl methacrylate and the N-vinyl pyrrolidone of the hydrogenation polymkeric substance of olefin polymer, vinylbenzene and isoprene and/or divinyl and multipolymer and terpolymer, alkyl acrylate or alkyl methacrylate or dimethylaminoethyl acrylate methyl base aminoalkyl ester.
6, lubricant compositions as claimed in claim 1, comprise washing composition inhibitor combination, described washing composition inhibitor combination comprises following one or more: the washing composition, antioxidant, antiwear agents, rust-preventive agent, defoamer, demulsifying compound, rust-preventive agent, ashless detergent and the pour point reducer that contain metal or ash content.
7, lubricant compositions as claimed in claim 6, its concentration with phosphorus is less than 0.08 weight %.
8, lubricant compositions as claimed in claim 6, its concentration with sulphur is less than 0.5 weight %.
9, lubricant compositions as claimed in claim 6, its concentration with chlorine is less than 150PPM.
10, lubricant compositions as claimed in claim 6, its content range with ash content are 0.35 to 2 quality %.
11, lubricant compositions as claimed in claim 1, it satisfies the requirement of SAE J300 viscosity grade 0Wx or 5Wx, and wherein x is 10,20,30 or 40.
12, a kind of lubricant compositions comprises:
The kinematic viscosity ratio be less than or equal to 0.25 and shear stability index (SSI) be equal to or greater than 20% polymkeric substance; With
Viscosity index is equal to or greater than 120 base oil,
Wherein in the lubricant compositions concentration of phosphorus less than the concentration of 0.08 weight % and sulphur less than 0.5 weight %.
13, lubricant compositions as claimed in claim 12, wherein base oil comprises group III oil base stock and/or group IV oil base stock.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/957,627 | 2007-12-17 | ||
| US11/957,627 US20090156442A1 (en) | 2007-12-17 | 2007-12-17 | Lubricant Compositions With Low HTHS for a Given SAE Viscosity Grade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101463286A true CN101463286A (en) | 2009-06-24 |
Family
ID=40561753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101871396A Pending CN101463286A (en) | 2007-12-17 | 2008-12-17 | Lubricant compositions with low HTHS for a given SAE viscosity grade |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20090156442A1 (en) |
| EP (1) | EP2077316A3 (en) |
| JP (1) | JP2009144162A (en) |
| KR (1) | KR20090065449A (en) |
| CN (1) | CN101463286A (en) |
| AU (1) | AU2008258192B2 (en) |
| CA (1) | CA2646858A1 (en) |
| SG (1) | SG153772A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104736685A (en) * | 2012-08-20 | 2015-06-24 | 路博润公司 | Lubricating composition including esterified copolymer and diene rubber polymer |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2154230A1 (en) * | 2008-08-08 | 2010-02-17 | Afton Chemical Corporation | Lubricant additive compositions having improved viscosity index increasing properties |
| CN103468347B (en) * | 2013-08-03 | 2016-04-27 | 深圳昆油石化技术有限公司 | A kind of recombinant type lubricating oil viscosity index improver |
| US11505761B2 (en) * | 2020-09-17 | 2022-11-22 | Exxon Mobil Technology and Engineering Company | Diluent oils for viscosity modifiers and additive packages |
Family Cites Families (58)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2719126A (en) | 1952-12-30 | 1955-09-27 | Standard Oil Co | Corrosion inhibitors and compositions containing same |
| US2719125A (en) | 1952-12-30 | 1955-09-27 | Standard Oil Co | Oleaginous compositions non-corrosive to silver |
| DE1248643B (en) | 1959-03-30 | 1967-08-31 | The Lubrizol Corporation, Cleveland, Ohio (V. St. A.) | Process for the preparation of oil-soluble aylated amines |
| US3087932A (en) | 1959-07-09 | 1963-04-30 | Standard Oil Co | Process for preparing 2, 5-bis(hydrocarbondithio)-1, 3, 4-thiadiazole |
| US3329658A (en) | 1962-05-14 | 1967-07-04 | Monsanto Co | Dispersency oil additives |
| US3449250A (en) | 1962-05-14 | 1969-06-10 | Monsanto Co | Dispersency oil additives |
| NL296139A (en) | 1963-08-02 | |||
| US3658836A (en) | 1964-04-16 | 1972-04-25 | Monsanto Co | Hydroxyboroxin-amine salts |
| NL145565B (en) | 1965-01-28 | 1975-04-15 | Shell Int Research | PROCESS FOR PREPARING A LUBRICANT COMPOSITION. |
| US3574576A (en) | 1965-08-23 | 1971-04-13 | Chevron Res | Distillate fuel compositions having a hydrocarbon substituted alkylene polyamine |
| US3697574A (en) | 1965-10-22 | 1972-10-10 | Standard Oil Co | Boron derivatives of high molecular weight mannich condensation products |
| US3704308A (en) | 1965-10-22 | 1972-11-28 | Standard Oil Co | Boron-containing high molecular weight mannich condensation |
| US3413347A (en) | 1966-01-26 | 1968-11-26 | Ethyl Corp | Mannich reaction products of high molecular weight alkyl phenols, aldehydes and polyaminopolyalkyleneamines |
| US3702757A (en) | 1967-03-09 | 1972-11-14 | Chevron Res | Phosphate ester amine salts useful as fuel detergents and anti-icing agents |
| US3519565A (en) | 1967-09-19 | 1970-07-07 | Lubrizol Corp | Oil-soluble interpolymers of n-vinylthiopyrrolidones |
| US3703536A (en) | 1967-11-24 | 1972-11-21 | Standard Oil Co | Preparation of oil-soluble boron derivatives of an alkylene polyamine-substituted phenol-formaldehyde addition product |
| GB1244435A (en) | 1968-06-18 | 1971-09-02 | Lubrizol Corp | Oil-soluble graft polymers derived from degraded ethylene-propylene interpolymers |
| US3726882A (en) | 1968-11-08 | 1973-04-10 | Standard Oil Co | Ashless oil additives |
| US3725480A (en) | 1968-11-08 | 1973-04-03 | Standard Oil Co | Ashless oil additives |
| US3702300A (en) | 1968-12-20 | 1972-11-07 | Lubrizol Corp | Lubricant containing nitrogen-containing ester |
| US3649229A (en) | 1969-12-17 | 1972-03-14 | Mobil Oil Corp | Liquid hydrocarbon fuels containing high molecular weight mannich bases |
| US3639242A (en) | 1969-12-29 | 1972-02-01 | Lubrizol Corp | Lubricating oil or fuel containing sludge-dispersing additive |
| US3649659A (en) | 1970-03-24 | 1972-03-14 | Mobil Oil Corp | Coordinated complexes of mannich bases |
| GB1370093A (en) * | 1970-11-13 | 1974-10-09 | Shell Int Research | Lubricant compositions containing a viscosity index improver |
| US3708422A (en) | 1971-01-29 | 1973-01-02 | Cities Service Oil Co | Electric discharge machining fluid |
| US3821236A (en) | 1972-05-03 | 1974-06-28 | Lubrizol Corp | Certain 2-halo-1,2,4-thiadiazole disulfides |
| US3904537A (en) | 1972-05-03 | 1975-09-09 | Lubrizol Corp | Novel disulfides derived from 1,2,4-thiadiazole |
| US4193882A (en) | 1973-07-06 | 1980-03-18 | Mobil Oil Corporation | Corrosion inhibited lubricant composition |
| US4136043A (en) | 1973-07-19 | 1979-01-23 | The Lubrizol Corporation | Homogeneous compositions prepared from dimercaptothiadiazoles |
| US3980569A (en) | 1974-03-15 | 1976-09-14 | The Lubrizol Corporation | Dispersants and process for their preparation |
| GB1560830A (en) | 1975-08-08 | 1980-02-13 | Exxon Research Engineering Co | Sulphenamides |
| US4097387A (en) | 1976-09-03 | 1978-06-27 | Standard Oil Company (Indiana) | Olefin-dimercapto-thiadiazole compositions and process |
| US4107059A (en) | 1977-06-27 | 1978-08-15 | Pennwalt Corporation | Polymer of 1,2,4-thiadiazole and lubricants containing it as an additive |
| US4188299A (en) | 1978-05-17 | 1980-02-12 | Standard Oil Company (Indiana) | Oil soluble dithiophosphoric acid derivatives of mercaptothiadiazoles |
| US4234435A (en) | 1979-02-23 | 1980-11-18 | The Lubrizol Corporation | Novel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same, and processes for their preparation |
| GB2056482A (en) | 1979-08-13 | 1981-03-18 | Exxon Research Engineering Co | Lubricating oil compositions |
| US4594378A (en) * | 1985-03-25 | 1986-06-10 | The Lubrizol Corporation | Polymeric compositions, oil compositions containing said polymeric compositions, transmission fluids and hydraulic fluids |
| CA1339430C (en) | 1985-12-19 | 1997-09-02 | Katsumi Hayashi | Graft copolymers prepared from solvent-free reactions and dispersant derivatives thereof |
| IL89210A (en) | 1988-02-26 | 1992-06-21 | Exxon Chemical Patents Inc | Lubricating oil compositions containing demulsifiers |
| US4904401A (en) | 1988-06-13 | 1990-02-27 | The Lubrizol Corporation | Lubricating oil compositions |
| US5068047A (en) * | 1989-10-12 | 1991-11-26 | Exxon Chemical Patents, Inc. | Visosity index improver |
| ES2073514T3 (en) * | 1989-10-26 | 1995-08-16 | Shell Int Research | STAR-SHAPED POLYMER, ITS PREPARATION AND LUBRICATING COMPOSITIONS THAT CONTAIN IT. |
| US5146021A (en) * | 1991-04-17 | 1992-09-08 | Mobil Oil Corporation | VI enhancing compositions and Newtonian lube blends |
| US5458791A (en) * | 1994-07-01 | 1995-10-17 | Shell Oil Company | Star polymer viscosity index improver for oil compositions |
| US5458792A (en) * | 1994-08-11 | 1995-10-17 | Shell Oil Company | Asymmetric triblock copolymer viscosity index improver for oil compositions |
| GB9624441D0 (en) * | 1996-11-25 | 1997-01-15 | Exxon Research Engineering Co | Fuel economy engine oil composition |
| US6165235A (en) | 1997-08-26 | 2000-12-26 | The Lubrizol Corporation | Low chlorine content compositions for use in lubricants and fuels |
| US6713438B1 (en) * | 1999-03-24 | 2004-03-30 | Mobil Oil Corporation | High performance engine oil |
| US20030013623A1 (en) * | 2001-05-01 | 2003-01-16 | Kwok-Leung Tse | Olefin copolymer viscocity index improvers |
| SG120869A1 (en) * | 2001-05-31 | 2006-04-26 | Mitsui Chemicals Inc | Olefin block copolymer, viscosity index improver for lubricating oils and lubricating oil composition |
| MY128504A (en) * | 2001-09-25 | 2007-02-28 | Pennzoil Quaker State Co | Environmentally friendly lubricants |
| US20040129603A1 (en) * | 2002-10-08 | 2004-07-08 | Fyfe Kim Elizabeth | High viscosity-index base stocks, base oils and lubricant compositions and methods for their production and use |
| US20040154957A1 (en) * | 2002-12-11 | 2004-08-12 | Keeney Angela J. | High viscosity index wide-temperature functional fluid compositions and methods for their making and use |
| US7776804B2 (en) * | 2005-03-16 | 2010-08-17 | The Lubrizol Corporation | Viscosity improver compositions providing improved low temperature characteristics to lubricating oil |
| AU2004225517B2 (en) * | 2003-03-28 | 2009-06-04 | The Lubrizol Corporation | Viscosity improver compositions providing improved low temperature characteristics to lubricating oil |
| ATE552328T1 (en) * | 2005-11-03 | 2012-04-15 | Infineum Int Ltd | LINEAR DIBLOCK COPOLYMERS AS ANTI-WEAR ADDITIVES FOR LUBRICANTS IN COMBUSTION ENGINE CRANKCASES |
| US20070105731A1 (en) * | 2005-11-04 | 2007-05-10 | Chin Chu | Lubricating oil compositions |
| EP1916291B1 (en) * | 2006-10-24 | 2018-01-24 | Total Marketing Services | Use of a multifunctional lubricant |
-
2007
- 2007-12-17 US US11/957,627 patent/US20090156442A1/en not_active Abandoned
-
2008
- 2008-12-04 EP EP08105939A patent/EP2077316A3/en not_active Withdrawn
- 2008-12-16 KR KR1020080127717A patent/KR20090065449A/en not_active Application Discontinuation
- 2008-12-16 CA CA002646858A patent/CA2646858A1/en not_active Abandoned
- 2008-12-16 SG SG200809286-8A patent/SG153772A1/en unknown
- 2008-12-17 AU AU2008258192A patent/AU2008258192B2/en active Active
- 2008-12-17 JP JP2008321494A patent/JP2009144162A/en active Pending
- 2008-12-17 CN CNA2008101871396A patent/CN101463286A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104736685A (en) * | 2012-08-20 | 2015-06-24 | 路博润公司 | Lubricating composition including esterified copolymer and diene rubber polymer |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2008258192A1 (en) | 2009-07-02 |
| AU2008258192B2 (en) | 2013-01-10 |
| CA2646858A1 (en) | 2009-06-17 |
| KR20090065449A (en) | 2009-06-22 |
| US20090156442A1 (en) | 2009-06-18 |
| JP2009144162A (en) | 2009-07-02 |
| EP2077316A2 (en) | 2009-07-08 |
| SG153772A1 (en) | 2009-07-29 |
| EP2077316A3 (en) | 2011-12-21 |
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