КОМПОЗИЦИЯ ПОЛИФУНКЦИОНАЛЬНОЙ ПРИСАДКИ, ПОВЫШАЮЩЕЙ ИНДЕКС ВЯЗКОСТИ, И СМАЗОЧНОЕ МАСЛО

Изобретение относится к новым полифункциональным модификациям вязкости, включающим смесь дериватизированных сополимеров этилена с альфа-олефинами, А и Б. Указанный сополимер А содержит от примерно 30 до примерно 60 мас.% мономерных звеньев из этилена и указанный сополимер Б содержит от примерно 60 до примерно 80 мас.% мономерных звеньев из этилена. 2 с. и 6 з.п. ф-лы, 4 ил., 1 табл.

ПРИМЕНЕНИЕ ГРЕБЕНЧАТЫХ ПОЛИМЕРОВ ДЛЯ СНИЖЕНИЯ РАСХОДА ГОРЮЧЕГО

... 1. Гребенчатый полимер, содержащий в основной цепи повторяющиеся единицы, являющиеся производными макромономеров на основе полиолефинов, и повторяющиеся структурные единицы, являющиеся производными низкомолекулярных мономеров, выбранных из группы, которая состоит из: стироловых мономеров с 8-17 атомами углерода, алкил(мет)акрилатов с 1-10 атомами углерода в спиртовой группе, сложных виниловых эфиров с 1-11 атомами углерода в ацильной группе, простых виниловых эфиров с 1-10 атомами углерода в спиртовой группе, (ди)алкилфумаратов с 1-10 атомами углерода в спиртовой группе, (ди)алкилмалеатов с 1-10 атомами углерода в спиртовой группе, а также смесей этих мономеров, причем гребенчатый полимер в сумме включает в себя по меньшей мере 80 мас.% (относительно массы всех повторяющихся структурных единиц) повторяющихся структурных единиц, представляющих собой производные макромономеров на основе полиолефинов, и повторяющихся структурных единиц, являющихся производными низкомолекулярных мономеров, ...

Смазочный материал для горячей обработки металлов давлением

Изобретение относится к смазочному материалу для горячей обработки металлов давлением Цель изобретения - ловьшение смазочных свойств за счет снижения коэффициента трения, Смазочный материал содержит, мас,%: графит , 11,0-60,8f полиэтилен 3,7-18,4) неорганическую присадку 5,3-35,3 и органический стабилизатор, выбранный из группы, включающей поливинилацетат , поливияилоБьй спирт, полисахариды , поливинилбутираты, поливииилбу- тирали, алкилцеллюлозу, 0,2-80,0, Неорганическая присадка содержит, иас.%: полифосфат натрия (NaPOj)n, где п 6-50000. О,2-98,8 неоргнничес- кое соединение бора, выбранное из группы, в кпючакщей-буру, борную кислоту , , KB50g 4 H.j,0, борат цинка О,2-25,Оj жидкое стекло натрия или жидкое стекло калия с содержанием SiOj 21-47 мас,% ls,0-99,6a Смазочный материал обеспечивает коэффициент трения 0,03-0,054, 4 табл ...

Смазка для горячей обработки металлов

FORMENTRENNMITTEL FUER DRUCKGUSSVERFAHREN

SYNTHESEOELE, DIE GANZ ODER TEILWEISE AUS OLIGOMEREN BZW. COOLIGOMEREN VON (METH)ACRYLSAEUREESTERN UND 1-ALKENEN BESTEHEN

Schmiermittel zum Drahtzuführen und zum Drahtziehen und mit Verwendung dieses Schmiermittels hergestelltem Schweissdraht

VERFAHREN ZUR HERSTELLUNG EINER MEHRFACH-WASSER/ÖL/WASSER-EMULSION

OELSCHMIERMITTEL FUER DIE PLASTISCHE VERARBEITUNG VON METALLMATERIAL.

Verfahren zur Herstellung von oelloeslichen Mischpolymerisaten auf Basis von Acrylsaeureestern

Aerogels and grease compositions made therefrom

A lubricating grease composition comprises a major proportion of an organic liquid possessing lubricating properties and a minor proportion of a non-collapsed soap aerogel. The organic liquid possessing lubricating properties may be mineral lubricating oil, a synthetic hydrocarbon, an organic ester, an organic polymer or a fluorinated hydrocarbon, and a list of suitable liquids is given. The soaps from which the non-collapsed soap aerogels can be made may be metal or organic base salts of fatty materials and mixtures thereof. Saponifiable materials which may be used to form soaps are fats and oils of animal, vegetable, marine or fish origin, fatty acids derived from such fats and oils, the hydrogenated or sulphurized products of such fatty acids, and the substitution derivatives of such fatty acids for example the mercapto amino or halogen substituted fatty acids. Saponifiable materials from other sources such as napthenic acids, tall oil fatty acids, rosin acids and acids produced by the ...

DIE-CASTING POWDERY MOULD RELEASING AGENT

Oleaginous compositions particularly suitable for use as hydraulic fluids and/or insulating oils

A substantially non-inflammable oleaginous composition, suitable for use as a hydraulic fluid or insulating oil, comprises a normally liquid completely halogenated carbon compound, together with a polymerized unsaturated ester, the latter being present in a proportion of 2-15 per cent based on the halogenated carbon compound. Suitable completely halogenated carbon compounds are hexachlorobutadiene, hexachloropropylene, hexabromopropylene and tetraiodoethylene, while preferred polymerized unsaturated esters are polymerized esters of methacrylic acid. Optional ingredients which may be present in the oleaginous composition are mineral oil, oxidation inhibitors, corrosion inhibitors, viscosity index improvers, pour-point depressants, wax suppressors, extreme pressure agents and partially halogenated organic compounds. Oxidation inhibitors mentioned are aromatic amines and substituted phenols, particularly dimethyl phenols, 2,6 - di - tert. - butyl phenols, 2,4 - dimethyl - 6 - octyl phenol, ...

Improvements in or relating to lubricant compositions

Isopropenyl acetate is copolymerized with equimolar amounts of an ester or a mixture of esters of one or more, a , b -unsaturated polycarboxylic acids or anhydrides and one or more primary alcohols having 8 to 20 carbon atoms, in the presence of a peroxide type catalyst at elevated temperature and in the absence of air. Suitable acids are maleic, itaconic, fumaric citraconic, mesaconic and aconitic, and the alcohols include octyl, nonyl, decyl, lauroyl, palmityl, and myristyl, branched chain "oxo" alcohols and alcohols such as "Lorol" (R.T.M.) B alcohol obtained by the hydrogenation of coconut oil. Bulk or emulsion polymerization techniques and a "redox" system may be used with catalysts such as hydrogen, benzoyl and lauroyl peroxides, cumene, urea, and t-butyl hydroperoxides, potassium and ammonium persulphates, and t-butyl perbenzoate. The reaction may be modified by the presence of an excess of alcohol, a low M.W. aldehyde such as propionaldehyde or sulphuric or toluene sulphonic acid ...

Low pressure die casting powdery mold releasing agent

A low pressure die casting mold releasing agent comprising a mixture of a mold releasing base material, which is an inorganic compound, with an organic compound, at least the mold releasing base material being of powdery or granulated form. This mold releasing agent allows production of castings of high quality, with good workability and without adversely affecting environmental situations.

Improvements in or relating to lubricating compositions

... 759,284. Hydraulic fluids. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Jan. 4, 1954 [Jan. 5, 1953], No. 186/54. Class 69 (2). [Also in Group III] An hydraulic fluid comprises a major proportion of an oleaginous liquid ester and minor proportions of an epoxy compound and of an aryl amine containing a plurality of amino-aryl linkages. The epoxy compounds may contain one or more epoxy groups, and may be polymers containing epoxy groups. The arylamines may be diamino diarylalkanes, thiodiarylamines, diarylamines or alkylated phenylene diamines. The oleaginous liquid ester may be an ester of an acid of phosphorus, such as phosphates, phosphonates, phosphinates, diphosphorus compounds and ethers of diphosphorus compounds; an ester of silicic acid; or an ester of a carboxylic acid, such as an ester of mono or polyhydric alcohol with a mono or polybasic acid; or an ester of a silicic, phosphorus or dicarboxylic acid with thia-alcohols or thio-alcohols. Many examples of the epoxy ...

Fuel oil additives and compositions

POLYMERIC ADDITIVES FOR FUELS AND LUBRICANTS

RUST INHIBITED LUBRICANT COMPOSITION

... 1455476 Lubricating oils TEXACO DEVELOPMENT CORP 19 April 1974 [21 May 1973] 17210/74 Heading C5E Mineral lubricating oil compositions comprise 0À01-5 wt. per cent of an overbased alkaline earth metal compound and, as a rust inhibitor, a trialkanolamine of the Formula I wherein R is a C 1-24 hydrocarbyl radical, R1, Z and Y represent hydrogen or a C 1-10 hydrocarbyl radical and x is 0 or 1. 0À01-1À5 wt. per cent trialkanolamine is incorporated in paraffinic or naphthenic oils of SVS viscosity 50-500 at 210‹ F. The trialkanolamine can be a mixture prepared by reacting diethanolamine with a C 15-18 or C 11-14 straight chain alpha olefin epoxide mixture, with 1,2-epoxyoctane or with 1,2-epoxybutane. The compositions produced in examples comprise the trialkanolamine and calcium carbonate overbased calcium sulphonate, zinc di-C 6-7 alkyl dithiophosphate, mono- (#-hydroxyethyl) alkane thiophosphonate, a methacrylate copolymer, and diethyl mono- and di-tert.-octyldiphenylamine.

Improved synthetic lubricating compositions

A lubricating composition, suitable for the lubrication of aviation gas turbine systems, comprises a complex ester having the general structure: wherein the residues are derived from 2-ethyl hexanol, iso-octanol or iso-nonanol, adipic, azelaic or sebacic acid, and a polyethylene glycol with a molecular weight of about 200, together with 0.1-10 per cent by weight, based on the total composition, of either benzthiazole or an oil-soluble compound consisting of a first benzene ring condensed with a substituted benzene ring, the substituent group or groups being chosen from -OH, -SH, amine, substituted amine, amide and esterified carboxyl groups. The first benzene ring may also carry one or more substituent groups which may be chosen from those listed above and from alkyl, cycloalkyl and phenyl groups. Suitable oil-soluble compounds of the condensed benzene ring type are a -naphthol, a - or b -naphthylamine and 2,3-, 1,7- or 2,6-dihydroxynaphthalene. The lubricating compositions ...

Improvements in or relating to lubricants

A lubricating composition comprises an oleaginous lubricant and a vinylic filler which consists of substantially rigid particles of a polymeric material derived from the polymerization of one or more ethylenically unsaturated materials. The polymerization is conducted so that there is cross-linking within the particles to such an extent that the particles are substantially completely insoluble in the lubricant. Oleaginous lubricants mentioned are mineral and fatty oils; oils derived from coal tar or from the hydrogenation of coal, peat, asphalt or petroleum residues; olefin polymers and condensation products of these with aromatic hydrocarbons, and oxidation products of such polymers and condensates; voltolization products of fatty oils or unsaturated hydrocarbons; hydrogenated, hydroxylated, epoxidized or oxidized fatty oils; blends of fatty oils with fatty acids or the corresponding mono- or di-glycerides; alkyl esters of mono-or di-carboxylic acids; organic esters of acids of phosphorus ...

COMPOSITION AND PROCEDURE FOR THE COATING OF METALS WITH LUBRICATION PLASTICS

SYNTHETISCHES, ABSORBIERBARES, MEHRFAEDIGES NAHTMATERIAL MIT VERBESSERTEN VERKNOTUNGSEIGEN- SCHAFTEN

FAHRZEUGRAD

PROCEDURE FOR LUBRICATING A CHECK DIFFERENTIAL

MULTI-FUNCTIONAL PROTECTIVE COATING FOR ZINC-COATED STEEL SURFACES AND YOUR ALLOYS.

DISPERSION OF HALIDES THE RARE GROUND CONNECTION IN WAESSRIGEM MEDIUM.

LUBRICANT AND/OR LUBRICANT CONCENTRATE.

USE OF OLIGOMEREN AND/OR COOLIGOMEREN OF (METH) ACRYLIC ACID ESTERS AND 1-ALKENEN AS SYNTHESIS OILS.

VEHICLE WHEEL

VEHICLE WHEEL WITH A RIM AND A PNEUMATIC TIRE

Procedure for the production of oil-soluble copolymers

COMPOSITIONS, CONTAINING AMINI ANTIOXIDANTIEN ON BASIS OF n (4 - ANILINOPHENYL) AMIDES

LUBRICANT COMPOSITION FOR GEAR OIL

The present invention relates to a lubricant composition, and more particularly to a lubricant composition, which includes an ethylene-alphaolefin oligomer and an alkylated phosphonium compound, thus realizing energy reduction and an increased endurance life, and which is thus suitable for use in gear oil. The lubricant composition of the present invention includes a base oil, a liquid olefin copolymer, and an alkylated phosphonium compound.

CARBOXYLIC ACID GRAFTED ETHYLENE-ALPHA-OLEFIN COPOLYMER USEFUL AS A VISCOSITY INDEX IMPROVER-DISPERSANT

Aqueous lubricant and surface conditioner for formed metal surfaces

OIL COMPOSITIONS CONTAINING FUNCTIONALISED POLYMERS OF INVENTION

IMPROVED END-CAPPED MULTIFUNCTIONAL VISCOSITY INDEX IMPROVER

IMPROVED MULTIFUNCTIONAL VISCOSITY INDEX IMPROVER

Pour point depressants for high monounsaturated vegetable oils and for high monounsaturated vegetable oils/biodegradable base and fluid mixtures

LUBRICATING COMPOSITIONS

ANTIOXIDANT AMINES BASED ON N-(4-ANILINOPHENYL)AMIDES

A composition of matter is disclosed wherein the composition comprises an N- aromatic substituted acid amide compound selected from the group consisting of compounds of formula (I) wherein A and B are independently selected alkylene groups; R1 is selected form the group consisting of hydrogen, alkyl, alkylether, or ester; R2 is hydrogen if R1 is hydrogen; R2 is an alkyl primary amine if R1 is alkyl, alkylether, or ester; R3 and R4 are independently selected from the group consisting of hydrogen and alkyl; R5 is a sterically hindered phenolic group of formula (II) or formula (III) wherein X is CH2, S, NH, or O; and m, n, and p are independently selected integers equal to 0 or 1. These compositions may be used as such or they may be bound to a polymer backbone via a linking moiety. In either case, they are useful as antioxidants, particularly in lubricating oil compositions.

FORMING LUBRICANT FOR A COATED METAL CONTAINER AND METHOD OF MAKING THE SAME

A metal container comprising a seamless body and an end wall integral therewith and having on at least its interior surface a protective coating which consists of a modified butyl stearate utilized as a lubricant in forming the container and an after-applied synthetic resin.

OIL-SOLUBLE ADDITION PRODUCTS OF AN ETHYLENE-OLEFIN COPOLYMER AND ANIONICALLY POLYMERIZABLE MONOMER HAVING UTILITY AS MULTIFUNCTIONAL V.I. IMPROVERS FOR LUBRICATING OILS

An oil-soluble addition product of a catalyzed condensation reaction of an anionically polymerizable monomer, preferably an ethylenically unsaturated nitrogen-containing monomer, e.g. acrylonitrile, with an oxidized copolymer of ethylene and at least one C3 to C50 alpha monolefin, e.g. propylene, said addition product in its preferred form containing from about 0.005 to 2% by weight nitrogen and having a number average molecular weight of from about 1000 to 500,000, has utility as a multifunctional V.I. improver or dispersant for lubricating oils.

PNEUMATIC TYRES

MIST LUBRICATION WITH OIL CONTAINING A POLYMERIC ADDITIVE

METHOD FOR CONTROLLING VISCOSITY OF ORGANIC LIQUIDS

A method for controlling the viscosity of organic liquids, said organic liquids having a solubility parameter of from about 6.0 to about 10.5, which comprises incorporating in said organic liquid a minor amount of an ionomeric polymer and polar cosolvent having a solubility parameter of from about 10 to 20, the solubility parameter of said solvent being at least 1.0 unit higher than the solubility parameter of said organic liquid.

LUBRICANT AND FUNCTIONAL FLUID COMPOSITIONS EXHIBITING IMPROVED DEMULSIBILITY

A lubricating composition is described which comprises a mixture of (A) a major amount of an oil of lubricating viscosity, (B) a dispersant effective amount of at least one ashless dispersant, and (C) a minor, effective amount of at least one demulsifier characterized by the formula wherein R is a hydrocarbyl group, R2, R3, R4 and R5 are each independently H or hydrocarbyl groups, and X is O or NR' wherein R' is hydrogen or a hydrocarbyl group. In one embodiment, the ashless dispersant is a carboxylic dispersant, and the demulsifier is a derivative of imidazoline. The lubricating compositions of the invention are characterized as having improved dispersancy, demulsibility, rust-inhibition and anti-wear properties.

GRAFT COPOLYMERS PREPARED FROM SOLVENT-FREE REACTIONS AND DISPERSANT DERIVATIVES THEREOF

Compositions useful as oil additives are prepared in a solvent or a solvent free system by reacting (B) an unsaturated carboxylic acid reagent with (A) a hydrogenated block copolymer in the presence of (C) free radical initiators. The formed reaction product (D) can be further reacted with a (E) primary amine-containing compound in a s o l v e n t o r a s o l v e n t f r e e s y s t e m .

LUBRICANT OR LUBRICANT CONCENTRATE

Lubricant or lubricant concentrate on mineral oil and/or synthetic oil basis having improved lubricating properties, in particular improved load bearing, sliding and corrosion inhibiting properties, which contains a) one or more mineral oils and/or synthetic oils as base oil and b) at least one compound A containing in its molecule at least one quaternary carbon atom and at least one ester bond and/or ether bond, as well as c) further usual additives.

SYNTHETIC BEARING LUBRICANT

MIST LUBRICATION WITH OIL CONTAINING A POLYMERIC ADDITIVE

METHOD FOR IMPROVING FLUOROCARBON ELASTOMER SEAL COMPATIBILITY

Disclosed is a method for improving compatibility of a fluorocarbon elastomer seal with a lubricating oil composition containing (a) a major amount of a base oil of lubricating viscosity; and (b) one or more dispersants containing one or more basic nitrogen atoms. The method involves adding to the lubricating oil composition an effective amount of one or more fluorocarbon elastomer compatibility improving agents comprising one or more oil-soluble titanium compounds.

MULTIFUNCTIONAL VISCOSITY INDEX IMPROVER-DISPERSANT ANTIOXIDANT

Oleaginous composition, particularly lubricating oil compositions, exhibiting im proved antioxidant properties containing a viscosity index improving amount of a viscosity index improver-dispersand comp rised of the reaction products of: (a) an oil soluble ethylene copolymer comprising from about 15 to 90 wt.% ethylene and from about 10 to 85 wt.% of at least one C3 to C28 alpha-olefin, having a number average molecular weight of from about 5,000 to 50 0,000, grafted with an ethylenically unsaturated carboxylic acid material having 1 or 2 acid or anhydride moieties; ( b) an organic polyamine having at least two primary amino groups; (c) an aldehyde; (d) a heterocyclic nitrogen reactant havi ng at least one -N(H)- group in the heterocyclic ring; and, optionally, (e) an amount effective to provide a V.I. im prover-dispersant exhibiting improved low temperature viscometric properties of high functionality long chain hydrocarbyl substituted dicarboxylic acid material having a functionality ...

POUR POINT DEPRESSANTS FOR HIGH MONOUNSATURATED VEGETABLE OILS AND FOR HIGH MONOUNSATURATED VEGETABLE OILS/BIODEGRADABLE BASE AND FLUID MIXTURES

An industrial lubricant composition is described that comprises (A) at least one vegetable or synthetic triglyceride oil of the formula wherein R1, R2 and R3 are aliphatic hydrocarbyl groups having at least 60 percent monounsaturated character and containing from about 6 to about 24 carbon atoms and (B) at least one pour point depressant. Optionally, the composition may also contain (C) a performance additive and (D) an oil.

ENVIRONMENTALLY FRIENDLY VISCOSITY INDEX IMPROVING COMPOSITIONS

A lubricant composition having improved viscosity index characteristics is described that comprises (A) at least one vegetable or synthetic triglyceride oil of the formula (see above formula) wherein R1, R2 and R3 are aliphatic hydrocarbyl groups having at least 60 percent monounsaturated character and containing from about 6 to about 24 carbon atoms and (B) at least one mixed ester of a carboxy-containing interpolymer. Optionally, the composition may also contain (C) a synthetic ester base oil, and (D) an antioxidant.

ENVIRONMENTALLY FRIENDLY VISCOSITY INDEX IMPROVING COMPOSITIONS

A lubricant composition having improved viscosity index characteristics is described that comprises (A) at least one vegetable or synthetic triglyceride oil of the formula wherein R1, R2 and R3 are aliphatic hydrocarbyl groups having at least 60 percent monounsaturated character and containing from about 6 to about 24 carbon atoms and (B) at least one mixed ester of a carboxy-containing interpolymer. Optionally, the composition may also contain (C) a synthetic ester base oil, and (D) an antioxidant.

METHOD FOR REDUCING FRICTION BETWEEN RAILROAD WHEEL AND RAILWAY TRACK USING METAL OVERBASED COLLOIDAL DISPERSE SYSTEMS

A method for reducing friction between railroad wheel and railway track is disclosed comprising applying to the railway track a composition comprising- an overbased non-Newtonian colloidal disperse system comprising: (1) solid metal-containing colloidal particles pre-dispersed in (2) a disperse medium of at least one inert organic liquid and (3) at least one member selected from the class consisting of organic compounds which are substantially soluble in the disperse medium, the molecules of said organic compound being characterized by polar substituents and hydrophobic portions.

BRANCHED POLYMERS AS FUEL OIL ADDITIVES

Oil soluble copolymers comprised of an addition-type polymeric main chain and a plurality of addition-type polymeric side branches which contain basic amine groups are disclosed which stabilise distillate fuel and lubricating oil compositions against deterioration during storage.

LOW PRESSURE DIE CASTING POWDERY MOLD RELEASING AGENT

The present invention provides a low pressure die casting mold releasing agent made of a mixture of a mold releasing base material, composed of an inorganic compound, and an organic compound, in which at least the mold releasing base material is in the form of granules or a powder. The mold releasing agent allows castings of high quality to be formed by a low pressure die casting operation, with good workability and without adversely affecting the environment.

VISCOSITY INDEX IMPROVER

Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils.

MIXED ETHYLENE ALPHA OLEFIN COPOLYMER MULTIFUNCTIONAL VISCOSITY MODIFIERS USEFUL IN LUBE OIL COMPOSITIONS

The present invention relates to novel multifunctional viscosity modifiers comprising a mixture of derivatized ethylene-alpha olefin copolymers, A and B. Said A copolymer from about 30 to about 60 weight percent monomer units derived from ethylene and said B copolymer comprising from about 60 to about 80 weight percent units derived from ethylene.

IMPROVED MULTIFUNCTIONAL VISCOSITY INDEX IMPROVER-DISPERSANT ANTIOXIDANT

Oleaginous compositions, particularly lubricating oil compositions, exhibiting improved antioxidant properties containing a viscosity index improving amount of a viscosity index improver-dispersant comprised of the reaction products of: (a) an oil soluble ethylene copolymer comprising from about 15 to 90 wt. % ethylene and from about 10 to 85 wt. % of at least one C3 to C28 alpha-olefin, having a number average molecular weight of from about 20,000 to 500,000, grafted with an ethylenically unsaturated carboxylic acid material having 1 or 2 acid or anhydride moieties; (b) an organic polyamine having at least two primary amino groups; (c) an aldehyde; (d) a hydroxy aromatic reactant having at least one -OH- group attached to the aromatic ring; and, optionally, (e) an amount effective to provide a V.I. improver-dispersant exhibiting improved low temperature viscometric properties of high functionality long chain hydrocarbyl substituted dicarboxylic acid material having a functionality of at ...

LUBRICATING COMPOSITIONS

This invention relates to a lubricating composition comprising at least about 30% by weight at least one mineral oil, having a kinematic viscosity of less than about 8 cSt at 100.degree.C, (A) from about 15% to about 40% by weight of at least one polymer, and (B) up to about 30% by weight of at least one fluidizing agent, provided that when the fluidizing agent is a poly.alpha.-olefin having a kinematic viscosity from about 2 to about 30 cSt at 100.degree.C, then the poly.alpha.-olefin is present in an amount up to about 12% by weight, wherein the lubricating composition has a shear loss of less than about 15% in the 20 hour taper bearing shear test. The invention also relates to concentrates used in preparing lubricating compositions. The present combination of components provides good low and high temperature properties especially when used in combination with one or more mineral oils. In one aspect, the compositions provide improved oxidation resistance.

AUTOMATIC TRANSMISSION FLUIDS OF IMPROVED VISCOMETRIC PROPERTIES

This invention provides compositions and methods for producing partial synthetic automatic transmission fluids capable of improved viscometric properties and capable of achieving -40 .degree. C Brookfield viscosities not greater than 15,000 centipoise.

CLEAN PERFORMING GEAR OILS

A clean performing gear oil for use in transmission oils and axle lubricants is provided. The gear oil having a Brookfield Viscosity at -12.degree.C ranging from about 1,000 to about 150,000 cP, comprises a base oil having a kinematic viscosity at 100.degree.C ranging from about 4.0 to about 41.0 cSt. Combined with the base oil is preferably a dispersant pour point depressant and/or a dispersant viscosity index improver. In a further preferred embodiment, the gear oil is essentially devoid of carboxylic-type ashless dispersants (e.g., succinimide dispersants) and Mannich base dispersants, thus realizing a cost saving over conventional gear oils which are used as transmission and axle lubricants. Functionalized polymethylacrylates (PMA) are disclosed as agents that improve the properties of the gear oil and allow for the omission of conventional dispersants.

Schmierfett.

Verfahren zum Polymerisieren olefinisch ungesättigter Verbindungen.

Als Schmiermittel, Hydrauliköl oder Dichtungsfett geeignete fliessfähige Mischung mit verbesserten Viskositätseigenschaften

Verfahren zum Modifizieren der Fliesseigenschaften von fliessfähigen Stoffen

Procédé de fabrication de copolymères oléosolubles

Synthetisches Schmieröl

Synthetic, absorbable, multithread suturing material

High temperature lubricant for the hot-forming of metals

The high temperature lubricant for the hot-forming of metals contains 35 to 90% by weight of graphite, 2 to 60% by weight of homopolymer or copolymer of olefinically unsaturated monomers, 0.2 to 8% by weight of suspending assistant and 2 to 40% by weight of film stabiliser. It is prepared by dry mixing of the individual components. The lubricant is used in the form of an aqueous suspension having a solids content of 5 to 80% by weight. Sodium silicates, boron oxides, phosphates and/or silica may be used as film stabilisers. Such lubricants, which are stable at 900 DEG C, are used, for example, to lubricate the mandrel in the manufacture of seamless tubes, or for roll forming.

SYNTHETIC CAMP LUBRICANT.

High temp. lubricants for hot forming of metals

High temp. lubricants for hot forming of metals contg. graphite, alkylene polymer, suspending agent and film stabiliser ...

HIGH TEMPERATURE LUBRICANT FOR THE NON-CUTTING HOT SHAPING OF METALS.

Mix lubricant

Additives improved for lubricating oils

PROCESS OF POLYMERIZATION BY DIELECTRIC HEATING Of UNSATURATED FATTY-ACIDS, ESTERS Of UNSATURATED FATTY-ACIDS, UNSATURATED HYDROCARBONS, OR DERIVESINSATURES OF THESE PRODUCTS

ANTI-ACID LUBRICATING COMPOSITIONS

COPOLYMERES SOLUBLES DANS LES HUILES, OBTENUS PAR GREFFAGE, HYDROLYSE ETION COMME ADDITIFS POUR HUILES LUBRIFIANTES

L'invention décrit l'obtention et les applications de copolymères de greffage anionique hydrolysés et pouvant avoir réagi avec une amine, qui sont solubles dans les huiles. Ces copolymères proviennent de la polymérisation d'un monomère par voie anionique (de préférence un monomère azoté à insaturation éthylénique comme l'acrylonitrile) et d'un anion d'un copolymère oxyde de l'éthylène et d'au moins une alpha-monooléfine (3 à 50 C), comme le propylène,le polymère obtenu contenant environ 0,005 à 2% en poids dazote et ayant une masse moléculaire moyenne en nombre d'environ 1 000 à 500 000, suivie d'une hydrolyse et d'une réaction éventuelle avec une amine comme une polyéthylène-polyamine. Ces copolymères peuvent servir d'agents multifonctionnels d'amélioration de l'indice de viscosité et de dispersion des boues dans des huiles lubrifiantes.

Process and lubricant of rolling

Process of improvement of the color and the odor of the matters copolymers

Lubricating composition

COMPOSITION OF ABSORBABLE COATING FOR JOININGS

PNEUMATIC TYRE AND WHEEL ASSEMBLIES

Made up grease and its manufactoring process

METHOD OF PREPARATION Of a MULTIPLE EMULSION OF TYPE EAU/HUILE/EAU

La présente invention a pour objet un procédé de préparation d'une émulsion multiple comprenant une émulsion inverse constituée d'une phase aqueuse interne dispersée dans une phase organique interne, dispersée dans une phase aqueuse externe : . la phase aqueuse interne comprenant éventuellement au moins une matière active hydrophile; la phase organique interne comprenant éventuellement au moins une matière active hydrophobe; . l'émulsion inverse comprenant au moins un tensioactif et/ ou au moins un polymère amphiphile interne (s); . la phase aqueuse externe comprenant éventuellement au moins une matière active hydrophile et au moins un tensioactif et/ou au moins un polymère amphiphile externe (s); le procédé selon l'invention consistant à mettre en oeuvre les étapes suivantes : a) on prépare l'émulsion inverse; b) on prépare la phase aqueuse externe; c) on introduit la phase aqueuse externe dans l'émulsion inverse, sans agitation; d) on agite l'ensemble; e) on dilue éventuellement l'émulsion ...

SOLUBLE POLYMERS IN OILS, OBTAINED BY ANION GRAFTING Of a MONOMER ON COPOLYMERS OF ETHYLENE AND Of an ALPHA-OLEFIN, THEIR OBTAINING AND THEIR APPLICATION LIKE ADDITIVES FOR LUBRICATING OILS

IRON-BASED POWDER COMPOSITIONS CONTAINING NOVEL BINDER LUBRICANTS

LUBRICATING COMPOSITION CONTAINING BORATED PHOSPHOLIPID

POLYOXYALKYLENE GLYCOL DIETHER LUBRICATING COMPOSITION PREPARATION AND USE

Lubricate engine components of an internal combustion engine by placing said engine components in contact with a lubricating composition that comprises a polyoxyalkylene glycol diether represented by a general formula as follows: R1-(EO)x-(AO)y-R2 where R1 and R2 are each independently a C1-C12 alkyl moiety or a C1-C12 aryl moiety, a C1-C12 alicyclic moiety, or a C1-C12 heterocyclic moiety, EO is an ethylene oxide moiety, AO is a C3-C14 alkylene oxide moiety, and x and y are independent integers within a range of from zero to 50, provided that at least one of x and y is an integer greater than zero but less or equal that 50. Prepare such polyoxyalkylene glycol diethers by: a) reacting a polyalkylene glycol with an amount of alkali metal alkoxide to form a first reaction product that comprises a polyoxyalkylene glycol alkali metal alkoxide and an alkanol; b) heating the first reaction product at a first elevated temperature and a reduced pressure in conjunction with an inert gas purge for ...

RUST INHIBITING LUBRICANT

The present invention provides a rust inhibiting lubricant. Based on the total weight of the rust inhibiting lubricant, the rust inhibiting lubricant comprises: (a) from 5% to 45% of base oil, wherein the base oil is one or more substances selected from the following group: polyalkelene glycol, fatty glyceride and propanetriol; (b) from 0.1% to 15% of corrosion inhibitor, wherein the corrosion inhibitor may be one or more substances selected from the following group: organic poly(carboxylic acid), organic polycarboxylate salt and alkyl amine; (c) from 0.05% to 10% of anti-corrosion agent, wherein the anti-corrosion agent may be one or more substances selected from the following group: benzoic acid anti-corrosion agents and isothiazoline anti-corrosion agents; and (d) from 30% to 90% of water.

FUEL OIL ADDITIVES AND COMPOSITIONS

A composition comprising a hydrogenated block diene polymer and saturated hydrocarbon mixture as a cold flow improver in an oil.

Axle oil composition having enhanced fuel efficiency and low viscosity

An axle oil composition having enhanced fuel efficiency and low viscosity is provided, wherein the axle oil composition contains 40 to 70 wt % of poly alpha olefin (PAO) synthetic oil; 5 to 35 wt % of an oil soluble poly alkylene glycol (OSP) synthetic oil; 15 to 20 wt % of an ester-based viscosity modifier; 0.05 to 0.5 wt % of calcite; and 5 to 20 wt % of additive, wherein the axle oil composition having enhanced fuel efficiency and low viscosity has average kinematic viscosity at 100° C. of 11.5 to 13.5 cSt and average kinematic viscosity at 40° C. of 65 to 75 cSt and forms an oil film having a thickness of 85 to 96 nm even at low viscosity, largely improving durability and fuel efficiency of a vehicle.

Estolide compositions having excellent low temperature properties

A lubricant or process fluid composition having excellent low temperature properties comprises a capped estolide ester, a polyalphaolefin, a synthetic ester and/or polyalkylene glycol, and a pour point depressant. The combination of the three base oils plus the pour point depressant produces a synergistic composition that may have a pour point less than -15° C., preferably less than -35° C., while also having more than 50 percent by weight renewable carbons and being economical and effective in a wide variety of applications.

Lubricant for percussion equipment

This invention discloses a lubricant suitable for use in percussion equipment. The lubricant comprises a base oil selected from the group consisting of Group I or Group II, blended in a synergistic amount with a gear oil package and a friction modifier. The lubricant exhibits superior wear and superior extreme pressure properties due to the synergistic effect of the gear oil package and the friction modifier. In a preferred embodiment, the gear oil package comprises a polyalkyl methacrylate polymer, and the friction modifier comprises a synthetic ester.

Lubricating Oil Composition For Lubricating Automotive Engines

A lubricating oil composition of SAE viscosity grade 0W20 which comprises a base oil and additive components comprising a nitrogen-containing ashless dispersant, an alkaline earth metal-containing detergent, a phosphorus-containing wear inhibitor, an oxidation inhibitor and a viscosity index improver and which shows a viscosity index of 200-240, a HTHS viscosity of not less than 2.9 mPa·s s at 150° C. and a Noack evaporation loss of not more than 13% favorably gives a high fuel economy and high wear inhibition to a four cycle gasoline engine of motorcycles and a diesel engine mounted on motor cars equipped with an exhaust gas post-processing apparatus.

Lubricating Composition Containing Friction Modifier and Viscosity Modifier

A lubricant composition suitable for lubricating an internal combustion engine comprises: (a) an oil of lubricating viscosity having a viscosity index of at least 105 and a kinematic viscosity at 100 C of less than 7 mm2s-1; (b) 0.01 to 2 weight percent of a friction modifier represented by the structure [I]; (c) 0.5 to 4 weight percent of a poly(meth)acrylate viscosity modifier polymer; (d) 0 to 500 parts per million by weight of molybdenum in the form of an oil-soluble molybdenum compound; and (e) 0 to 200 parts per million by weight of boron in the form of an oil-soluble boron compound.

Use of comb copolymers for improving scuffing load capacity

The present invention relates to the use of comb polymers comprising, in the main chain, repeat units derived from polyolefin-based macromonomers with a molecular weight of at least 500 g/mol, and repeat units derived from low molecular weight monomers with a molecular weight less than 500 g/mol, for improving the load-bearing capacity of hydraulic fluids. Furthermore, the present invention describes new hydraulic fluids.

Star Polymer Lubricating Composition

The invention provides a lubricating composition containing (a) 0.001 wt % to 15 wt % of a polymer with radial or star architecture; (b) an overbased detergent; (c) a dispersant; and (d) an oil of lubricating viscosity. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Method of Lubricating a Manual Transmission

The present invention relates to a method of lubricating a driveline device comprising supplying to the driveline device a lubricating composition comprising an oil of lubricating viscosity and an aromatic hydroxy-substituted compound. The invention further provides for the use of the lubricating composition comprising the aromatic hydroxy-substituted compound as at least one of a filterability aid, and a wax crystal growth modifier/gelation inhibitor in the driveline device.

Antiwear Composition and Method of Lubricating Driveline Device

The present invention relates to a method of driveline device by supplying to the driveline device a lubricating composition containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes: (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) a phosphorus compound. The invention further provides lubricating compositions containing an oil of lubricating viscosity and an antiwear package, wherein the antiwear package includes (a) derivatives of a carboxylic acid (typically a hydroxycarboxylic acid); and (b) an amine or metal salt of a phosphorus compound that is either (i) a hydroxy-substituted di-ester of (thio)phosphoric acid, or (ii) a phosphorylated hydroxy-substituted di- or tri-ester of (thio)phosphoric acid.

Lubricating Compositions Containing Polyalkylene Glycol Mono Ethers

Provided are lubricating compositions comprising in admixture at least 40 wt % of a base stock selected from the group consisting of Group I, Group II, Group III, Group IV and Group V base stocks, or any combination thereof, one or more polyalkylene glycol mono ethers, and at least one additive. Also provided are methods of improving the friction and wear properties of a base stock selected from the group consisting of Group I, Group II, Group III, Group IV and Group V base stocks, or any combination thereof, comprising blending the base stock with one or more polyalkylene glycol mono ethers and at least one additive, to form a lubricating composition.

Lubricant composition for an internal combustion engine

A lubricating oil composition for an internal combustion engine contains a component (A) of a polyalphaolefin having a kinematic viscosity at 100 degrees C. of 5.5 mm 2 /s or less, a CCS viscosity at −35 degrees C. of 3000 mPA·s or less and a NOACK of 12 mass % or less, and a component (B) of a mineral oil having a viscosity index of 120 or more. The component (A) is contained at a content of 25 mass % or more of a total amount of the composition.

Glycerol-containing functional fluid

A functional fluid comprising a major amount of an oil of lubricating viscosity, and at least about 0.05 wt-% glycerol. A method of preparing a functional fluid comprising adding glycerol to a functional fluid, wherein the glycerol is not glycerol monooleate. A method of preparing an additive concentrate comprising adding glycerol to a diluent oil wherein the concentrate contains from about 1% to about 99% by weight of said diluent. A method of reducing wear comprising contacting a metal surface with a functional fluid comprising a major amount of an oil of lubricating viscosity and at least about 0.05 wt-% glycerol.

Low viscosity oligomer oil product, process and composition

The present invention relates to a low viscosity lubricant process, product, and composition characterized by low Noack volatility, low pour point, useful low temperature viscometrics, and high viscosity index and more particularly concerns a PAO composition having a kinetic viscosity at 100° C. in the range of about 4 cSt.

Terpene derived compounds

This invention relates to terpene derived compounds and farnesene derived compounds, and to the use of such terpene derived compounds and farnesene derived compounds in lubricants, detergents, dispersants, functional fluids, fuels, polymer compositions, cold flow improvers, and the like.

Siloxane-based composition which is intended for tire molding/stripping

The invention relates to compositions in the form of silicone oil emulsions which are intended to be applied to curing bladders as a mold-release agent during tire production.

Transmission lubricant

The present invention relates to a transmission lubricant comprising at least 30% by weight of polyalkyl (meth)acrylate. The present invention further describes polyalkyl (meth)acrylates for use in lubricants and also processes for preparing them and their use. The present lubricants can be used particularly in wind turbine transmissions.

Lubricant system and method of forming the same

A lubricant system is disclosed that is formed by contacting a fibrous network with oil and/or lubricating fluid having an affinity for the fibrous network. The fibrous network comprises oleophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least times the diameter. In addition, the oleophilic fibers have an affinity for the oil and/or lubricating fluid.

Apparatus for use in a system containing a lubricating fluid and method of forming the same

An apparatus is disclosed for use in a system containing at least one of an oil and a lubricating fluid. The apparatus comprises a surface in need of lubrication during operation of the apparatus, and oleophilic fibers disposed on the surface. The oleophilic fibers have a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. In addition, the oleophilic fibers have an affinity for at least one of the oil and the lubricating fluid.

Hydrophilic composition for use with a lubricating system as well as an apparatus and method for using the same

A hydrophilic composition for use with a lubricating system comprises hydrophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least 5 times the diameter. The hydrophilic fibers having a strong affinity for at least one of water and other hydrophilic fluids and may remove or eliminate free or dissolved water in a lubricating system comprising at least one of an oil and a lubricating fluid.

Lubricating oil composition

A lubricating oil composition which exceeds the fuel saving performance of a conventional low viscosity lubricating oil composition, contains (A) a lubricating base oil having a % C A of 2 or less, adjusted to a 100° C. kinematic viscosity of 1.5 to 4.5 mm 2 /s and (B) a viscosity index improver including (B1) a poly(meth)acrylate having a weight-average molecular weight of 50,000 or less in an amount of 1 to 10 percent by mass and (B2) a poly(meth)acrylate having a weight-average molecular weight of 100,000 to 250,000 in an amount of 0.1 to 5 percent by mass of the total composition. The composition has a 80° C. high-shear viscosity (Vs: mPa·s) and a 80° C. kinematic viscosity (Vk: mm 2 /s) ratio (Vs/Vk) of less than 1, a coefficient of traction of 0.02 or less at 40° C., an average speed of 3.0 m/s, a slip ratio of 10%, and a contact pressure of 0.4 GPa.

Lubricating Compositions For Turbine And Hydraulic Systems With Improved Antioxidancy

The present invention relates to a synergistic combination of an antioxidant and an antiwear additive that results in improved antioxidancy performance in turbine, hydraulic, and other industrial lubricating compositions. The invention further relates to the processes to make the improved lubricating compositions and methods of their use in industrial fluids.

Use of block-copolymeric polyalkylene oxides as friction reducers in synthetic lubricants

The invention relates to the use of block copolymers containing at least a block of aromatic oxyalkylene groups and a block of nonaromatic oxyalkylene groups as friction-reducing additive and also compositions and lubricant formulations containing the block copolymers of the invention.

Synthetic lubricant basestocks and methods of preparation thereof

This disclosure relates to vinyl terminated macromer (VTM) based synthetic basestocks and their methods of preparation, lubricant compositions, methods of lubrication and products so lubricated. The VTM based synthetic basestocks useful for fuels and lubricants include oligomerization or polymerization products of one or more allylic vinyl terminated macromers (VTMs) having a molecular weight from 84 to 10080. The one or more allylic VTMs are oligomerized or polymerized in the presence of a catalyst under oligomerization or polymerization conditions sufficient to give the VTM based synthetic basestock. The catalyst can be a metallocene catalyst or an acid catalyst, e.g., Lewis acid. The one or more allylic vinyl terminated macromers (VTMs) can be one or more allylic vinyl terminated atactic polypropylene macromers (VTM aPP) having a molecular weight from 84 to 2250 and having a terminal allylic vinyl olefin content of at least 90%.

LIQUID COMPOSITIONS FOR HAIR REMOVAL DEVICES COMPRISING METATHESIZED UNSATURATED POLYOL ESTERS

The invention relates to liquid compositions for use with hair removal devices comprising a metathesized unsaturated polyol ester for improved lubrication. 1. A composition-dispensing hair removal device , the device comprising a composition comprising from 0.1% to 60 by weight of a metathesized unsaturated polyol ester , the metathesized unsaturated polyol ester having a free hydrocarbon content , based on total weight of the metathesized unsaturated polyol ester , of from 0.1% to 5% , and having at least one of:(i) a weight average molecular weight of from 5,000 Daltons to 50,000 Daltons;(ii) an iodine value of from 30 to 200; or(iii) an oligomer index from greater than 0 to 1.2. The device according to claim 1 , wherein the metathesized unsaturated polyol ester has a weight average molecular weight of from about 5 claim 1 ,000 Daltons to about 50 claim 1 ,000 Daltons.3. The device according to claim 1 , wherein the metathesized unsaturated polyol ester has an iodine value of from about 30 to about 200.4. The device according to claim 1 , wherein the metathesized unsaturated polyol ester has an oligomer index from about 0.001 to 1.5. The device according to claim 1 , wherein the metathesized unsaturated polyol ester is metathesized at least once.6. The device according to claim 1 , wherein the metathesized unsaturated polyol ester is derived from at least one of a natural polyol ester or a synthetic polyol ester claim 1 , wherein the natural polyol ester is selected from the group consisting of a vegetable oil claim 1 , an animal fat claim 1 , an algae oil claim 1 , and mixtures thereof; and the synthetic polyol ester is derived from a material selected from the group consisting of ethylene glycol claim 1 , propylene glycol claim 1 , glycerol claim 1 , polyglycerol claim 1 , polyethylene glycol claim 1 , polypropylene glycol claim 1 , poly(tetramethylene ether) glycol claim 1 , pentaerythritol claim 1 , dipentaerythritol claim 1 , tripentaerythritol claim 1 , ...

HYDROCARBON SOLVENT STABLE AQUEOUS POUR POINT DEPRESSANT DISPERSION COMPOSITION

The present invention relates to an aqueous pour point depressant dispersion composition comprising an ethylene vinyl acetate copolymer (EVA); a dispersing agent; a polyethoxylated nonionic surfactant, a low level of hydrocarbon solvent, water; optionally one or more of an aqueous freezing point depressant, a stabilizing agent, or a basic metal substance and a method to use said composition. 2. The aqueous pour point depressant dispersion composition of wherein the average particle size of the dispersed EVA is equal to or less than 1 micrometer claim 1 , the amount of dispersing agent in the final composition is from 1 to 10 weight percent claim 1 , and the water:aqueous freezing point depressant mixture in the final composition is present in an amount of from 40 to 75 weight percent claim 1 , the water:aqueous freezing point depressant ratio is from 40:60 to 70:30.3. The aqueous pour point depressant dispersion composition of further comprising:(vii) a stabilizing agent in an amount of from 0.5 weight percent to 5 weight percent.4. The aqueous pour point depressant dispersion composition of wherein the polymer (i) is an ethylene vinyl acetate copolymer with 18 to 32 weight percent vinyl acetate and a melt index of 43 g/10 min determined according to ASTM D1238 at 190° C. and 2.16 kg.5. The aqueous pour point depressant dispersion composition of wherein the polymer (i) is an ethylene vinyl acetate copolymer with 32 weight percent vinyl acetate and a melt index of 43 g/10 min determined according to ASTM D1238 at 190° C. and 2.16 kg.6. The aqueous pour point depressant dispersion composition of wherein the dispersing agent (ii) comprises one or more of:{'sub': 1', '2', '1', '2, 'a a fatty acid/salt having the formula RCOORwherein Ris a straight chain, saturated or unsaturated, hydrocarbon radical of 8 to 25 carbon atoms and Ris H or a base-forming radical;'}b an alkyl, arene and/or alkylarene sulfonate;c a salt of a polymer of alkyl acrylate and/or alkyl methacrylate ...

LUBRICANT COMPOSITIONS FOR HIGH EFFICIENCY ENGINES

The instant disclosure is directed to a method of lubricating a sump-lubricated, high efficiency, gasoline-fueled internal combustion engine. Said method involves supplying to the engine a lubricating composition comprising an oil of lubricating viscosity, an anti-wear agent, an ashless antioxidant, a metal-containing detergent, an ashless polyolefin dispersant, and (f) a polymeric viscosity modifier. The disclosure further provides a method of operating a high efficiency sump-lubricated gasoline-fueled internal combustion engine while maintaining or improving at least one of durability, deposit control, oxidation control, fuel economy, and resistance to knock and stochastic pre-ignition. 1. A method of lubricating an internal combustion engine , comprising supplying to a sump-lubricated , high efficiency , gasoline-fueled internal combustion engine a lubricating composition comprising (a) an oil of lubricating viscosity , (b) an anti-wear agent in an amount 0.15 weight percent to 6 weight percent of the composition , (c) an ashless antioxidant in an amount 1.2 weight to 7 weight percent of the composition , and (d) a metal-containing detergent in an amount to deliver 0.2 weight percent sulfated ash up to 1.5 weight percent sulfated ash to the composition , (e) an ashless polyolefin dispersant in an amount 0.8 weight percent to 8 weight percent of the composition , and (f) a polymeric viscosity modifier , dispersant viscosity modifier , or mixtures thereof in an amount 0.1 weight percent to 4.5 weight percent of the composition.2. The method of claim 1 , wherein the internal combustion engine is operated at an effective compression ratio of at least 15:1.3. The method of claim 1 , wherein the internal combustion engine is operated under a load with a brake mean effective pressure (BMEP) of greater than or equal to 18 bars.4. The method of claim 1 , wherein the gasoline has an octane rating of at least 95 by the (R+M)/2 method.5. The method of claim 1 , wherein the ...

LUBRICANT COMPOSITION COMPRISING BRANCHED DIESTERS AND VISCOSITY INDEX IMPROVER

The invention refers to lubricant compositions comprising a specific diester together with a viscosity index improver. 2. Lubricant composition of claim 1 , wherein in the formula (I): n is 1;the total amount of carbon atoms being more than 15 and less than 40.3. Lubricant composition of claim 1 , wherein in the formula (I):R1 represents a linear or branched, saturated or unsaturated C5-C15 a Iky I group;R′ represents a linear or branched, saturated or unsaturated C3-C8 a Iky I group; R represents a linear or branched, saturated or unsaturated C1-C15 alkyl group.4. Lubricant composition according to claim 1 , wherein in the compound of formula (I) claim 1 ,R1 represents a saturated linear C5-C15 alkyl group, more preferably a saturated linear C5-C12 alkyl group; R′ represents a saturated linear C3-C8 alkyl group, more preferably a saturated linear C5-C8 alkyl group;R represents a saturated linear or branched C5-C15 alkyl group, more preferably a saturated linear or branched C5-C10 alkyl group.5. Lubricant composition according to claim 1 , wherein in the formula (I):R1 represents a saturated linear C5-C10 alkyl group, more preferably a saturated linear C5-C8 alkyl group;R′ represents a saturated linear C5-C8 alkyl group;R represents a saturated, linear or branched C5-C10 alkyl group, preferably a saturated linear C5-C10 alkyl group.7. Lubricant composition according to claim 1 , wherein in the formula (I):R1 represents a saturated linear or branched C5-C 5 alkyl group, more preferably a saturated linear C8-C12 alkyl group;R′ represents a saturated linear C5-C8 alkyl group;R represents a saturated, linear or branched C5-C10 alkyi group, preferably a saturated branched C5-C10 alkyl group.9. Lubricant composition according to claim 1 , wherein the viscosity index improver is a polymeric viscosity index improver claim 1 , preferably chosen among: polyacrylates and polymethacrylates claim 1 ,olefin homopolymers or copolymers, preferably ethylene/propylenestyrene ...

BRANCHED DIESTERS FOR USE TO REDUCE THE FUEL CONSUMPTION OF AN ENGINE

The invention refers to use of lubricant compositions comprising a specific diester and additives to reduce the fuel consumption of an engine. 2. Method according to claim 1 , wherein in the formula (I):n is 1;the total amount of carbon atoms being more than 15 and less than 40.3. Method according according to claim 1 , wherein in the formula (I) claim 1 ,R1 represents a linear or branched, saturated or unsaturated C5-C15 alkyl group;R′ represents a linear or branched, saturated or unsaturated C3-C8 alkyl group; R represents a linear or branched, saturated or unsaturated C1-C15 alkyl group.4. Method according according to claim 1 , wherein in the formula (I) claim 1 ,R1 represents a saturated linear C5-C15 alkyl group, more preferably a saturated linear C5-C12 alkyl group;R′ represents a saturated linear C3-C8 alkyl group, more preferably a saturated linear C5-C8 alkyl group;R represents a saturated linear or branched C5-C15 alkyl group, more preferably a saturated linear or branched C5-C10 alkyl group.5. Method according according to claim 1 , wherein in the formula (I) claim 1 ,R1 represents a saturated linear C5-C10 alkyl group, more preferably a saturated linear C5-C8 alkyl group;R′ represents a saturated linear C5-C8 alkyl group;R represents a saturated, linear or branched C5-C10 alkyl group, preferably a saturated linear C5-C10 alkyl group.7. Method according to claim 1 , wherein in the formula (I):R1 represents a saturated linear or branched C5-C15 alkyl group, more preferably a saturated linear C8-C12 alkyl group;R′ represents a saturated linear C5-C8 alkyl group;R represents a saturated, linear or branched C5-C10 alkyl group, preferably a saturated branched C5-C10 alkyl group.9. Method according to claim 1 , wherein the lubricant composition comprises from 0.1 to 50% claim 1 , preferably from 1 to 50% claim 1 , more preferably from 5 to 30% by weight based on the total weight of lubricant composition claim 1 , of a compound of formula (I).10. Method ...

LUBRICATING COMPOSITIONS COMPRISING A NON-SILICONE ANTI-FOAMING AGENT

Lubricating compositions are described, the lubricating compositions comprising a base oil component and an additive component, wherein the additive component comprises a non-silicone anti-foaming agent. 1. A lubricating composition , comprising:a base oil component, comprising: a polyalphaolefin (“PAO”), a mineral oil, or both, and comprising from about 95% to about 99.5% w/w of the lubricating composition; andan additive component, comprising: a non-silicone anti-foaming agent, an anti-wear agent, an aryl amine antioxidant agent, a metal deactivating agent, and an anti-rust agent, and comprising from about 0.5% to about 5% w/w of the lubricating composition.2. The lubricating composition of claim 1 , wherein the base oil component comprises from about 80% to about 90% of a first PAO having a kinematic viscosity of about 10 centiStokes at 100° C. and from about 10% to about 15% of a second PAO having a kinematic viscosity of about 40 centiStokes at 100° C.3. The lubricating composition of claim 1 , wherein the non-silicone anti-foaming agent comprises a polyacrylate polymer.4. The lubricating composition of claim 1 , wherein the non-silicone anti-foaming agent comprises from about 0.01% to about 0.1% w/w of the lubricating composition.5. The lubricating composition of claim 1 , wherein the anti-wear agent is selected from the group consisting of: a C-Calkylated triarylphosphate claim 1 , a C-Calkyl phosphate claim 1 , a diarylether phosphate ester claim 1 , a diarylether phosphate diester diphosphate claim 1 , and mixtures thereof.6. The lubricating composition of claim 1 , wherein the anti-wear agent comprises from about 0.05% to about 2% w/w of the lubricating composition.7. The lubricating composition of claim 1 , wherein the aryl amine antioxidant comprises a phenyl alpha naphthyl amine claim 1 , an alkylated phenyl alpha naphthyl amine claim 1 , or a mixture thereof.8. The lubricating composition of claim 1 , wherein the aryl amine antioxidant comprises from ...

Liquid compositions for hair removal devices comprising metathesized unsaturated polyol esters

The invention relates to liquid compositions for use with hair removal devices comprising a methathesized unsaturated polyol ester for improved lubrication.

LUBRICATING COMPOSITIONS COMPRISING THERMOASSOCIATIVE AND EXCHANGEABLE COPOLYMERS

A composition results from the mixture of at least one lubricating oil, at least one statistical copolymer A1, and at least one compound A2 including at least two boronic ester functions; the statistical copolymer A1 resulting from the copolymerisation of at least a first monomer M1 having diol functions and at least a second monomer M2 having a different chemical structure from that of the M1 monomer. The composition lubricates a mechanical part. The field is that of lubricants. 2. The composition according to claim 1 , in which statistical copolymer A1 results from the copolymerization of at least one monomer M1 with at least two monomers M2 having different Rgroups.6. The composition according to claim 5 , in which the chain formed by the sequence of R10 claim 5 , M claim 5 , X and (R)groups with u equal to 0 or 1 of the monomer of general formula (IV) has a total number of carbon atoms comprised between 8 and 38.7. The composition according to claim 5 , in which the side chains of the copolymer A2 have an average length greater than 8 carbon atoms.8. The composition according to claim 5 , in which the statistical copolymer A2 has a molar percentage of monomer of formula (IV) in the copolymer ranging from 0.25 to 20%.9. The composition according to claim 5 , in which the statistical copolymer A2 has a number-average degree of polymerization ranging from 50 to 1500.10. The composition according to claim 1 , in which the side chains of the statistical copolymer A1 have a average length ranging from 8 to 20 carbon atoms.11. The composition according to claim 1 , in which the statistical copolymer A1 has a molar percentage of monomer M1 of formula (I) ranging in said copolymer from 1 to 30%.12. The composition according to claim 1 , in which the statistical copolymer A1 has an average degree of polymerization ranging from 100 to 2000.13. The composition according to claim 1 , in which the lubricating oil is selected from the oils of Group I claim 1 , Group II claim 1 ...

VISCOSITY INDEX IMPROVER AND LUBRICATING OIL COMPOSITION

The present invention aims to provide a viscosity index improver excellent in shear stability and having a low HTHS viscosity and a high viscosity index. The viscosity index improver of the present invention contains a (co)polymer (A) containing a polyolefin-based monomer as an essential monomer unit, and a base oil, wherein the absolute value of difference in solubility parameter between the (co)polymer (A) and the base oil is 0.8 to 2.0 (cal/cm). 1. A viscosity index improver comprising:a (co)polymer (A) containing a polyolefin-based monomer as an essential monomer unit; anda base oil,{'sup': 3', '1/2, 'wherein the absolute value of the difference in solubility parameter between the (co)polymer (A) and the base oil is 0.8 to 2.0 (cal/cm).'}2. The viscosity index improver according to claim 1 ,{'sup': 3', '1/2, 'wherein the solubility parameter of the base oil is 7.8 to 9.5 (cal/cm).'}4. The viscosity index improver according to claim 3 ,wherein the hydrocarbon polymer containing at least one of isobutylene or 1,2-butylene as an essential structural unit in the formula (1) is a polymer in which the total number of isobutylene and 1,2-butylene based on the total number of structural units is 30 mol % or more.6. The viscosity index improver according to claim 5 ,wherein the (co)polymer (A) is the copolymer containing, as monomer units, 1 to 50% by weight of the monomer (a) and 1 to 80% by weight of the monomer (b) based on the weight of the (co)polymer (A), with the total amount of the monomers (a) and (b) being 10% by weight or more.7. The viscosity index improver according to claim 5 ,wherein the (co)polymer (A) is the copolymer further containing, as a monomer unit, at least one of an alkyl (meth)acrylate (c) having a C1-C4 alkyl group or an alkyl (meth)acrylate (d) having a C12-C36 linear alkyl group.9. The viscosity index improver according to claim 8 ,wherein the (co)polymer (A) is the copolymer containing, as monomer units, 5 to 40% by weight of the monomer (a ...

Engine oil composition

An engine oil composition includes a star polymer (A) and a poly(alkyl (meth)acrylate) (B) as a viscosity index improver, and has a viscosity index of 185 to 230, the star polymer (A) having a star structure and having a weight average molecular weight of 100,000 to 1,000,000, the star structure being a structure in which polymer chains branch from a center of the polymer, the polymer chains being obtained by copolymerization and hydrogenation of an aromatic vinyl compound monomer and a conjugated diene monomer, the poly(alkyl (meth)acrylate) (B) having a weight average molecular weight of 200,000 to 600,000, the content (M A ) of the star polymer (A) in the engine oil composition being 0.10 to 2.00 mass % based on the total mass of the engine oil composition, the content (M B ) of the poly(alkyl (meth)acrylate) (B) in the engine oil composition being 0.50 to 6.00 mass % based on the total mass of the engine oil composition, and the ratio “M A /M B ” being 0.10 to 1.00. The engine oil composition can significantly improve fuel efficiency, and is suitably used for a diesel engine.

LUBRICATING COMPOSITION

Lubricating composition for use in the crankcase of an engine comprising: (i) a base oil comprising at least one monoester or a mixture of monoesters, wherein said monoester or mixture of monoesters has a kinematic viscosity at 100° C. of not more than 4 mm/s, a viscosity index of at least 130 and a Noack evaporation loss of not more than 20 wt %; and (ii) a polymeric viscosity index improvers selected from (a) one or more comb polymers; (b) a poly(meth)acrylate polymer having 1 to 70 mol % of one or more (meth)acrylate structural units represented by formula (1) below (1) wherein Ris a hydrogen atom or a methyl group, and Ris a straight chain or branched hydrocarbon group having not less than 16 carbon atoms; (c) styrene-diene hydrogenated copolymers; and (d) mixtures thereof. The lubricating composition of the present invention provides improved fuel economy properties. 2. A lubricating composition according to wherein said monoester or mixtures of monoesters has a kinematic viscosity at 100° C. of not more than 3.3 mm/s.3. A lubricating composition according to wherein said monoester or mixtures of monoesters has a Noack evaporation loss of not more than 15 wt %.4. A lubricating composition according to wherein the at least one monoester or mixture of monoesters is present at a total level of at least 10 wt % claim 1 , by weight of the lubricating composition.5. A lubricating composition according to wherein the at least one monoester or mixture of monoesters is present at a total level of at most 75 wt % claim 1 , by weight of the lubricating composition.6. A lubricating composition according to wherein the polymeric viscosity index improver is a comb polymer.7. A lubricating composition according to wherein the polymeric viscosity index improver is present in a solid polymer amount of from 0.1 wt % to 7 wt % claim 1 , by weight of the lubricating composition.8. A lubricating composition according to wherein said at least one monoester or mixture of said ...

Lubricants for electric and hybrid vehicle applications

The present disclosure relates to methods of lubricating an electric or a hybrid-electric transmission using a lubricant including a solvent system with a blend of one or more base oils with a branched diester and one or more poly(meth)acrylate copolymers, transmissions therefor, and lubricating compositions suitable for such applications that exhibit good lubricant properties, good electrical properties, and good cooling efficiency at the same time.

VINYL-BASED COMB POLYMER

A vinyl-based comb copolymer includes a polyisobutylene-based macromonomer unit and a vinyl-based monomer unit. A polyisobutylene-based macromonomer has at least 0.8 (meth)acryloyl groups represented by a specific formula at one end of a main chain per molecule, and is copolymerized with a vinyl-based monomer. A method for producing the vinyl-based comb copolymer includes copolymerizing the polyisobutylene-based macromonomer with the vinyl-based monomer. A viscosity index improver includes the comb copolymer. A lubricating oil composition includes the comb copolymer. 2. The vinyl-based comb copolymer according to claim 1 , wherein the vinyl-based comb copolymer contains 0.05 to 20 mol % of a polyisobutylene-based macromonomer unit.3. The vinyl-based comb copolymer according to claim 1 , wherein a molecular weight distribution (Mw/Mn) of the polyisobutylene-based macromonomer ranges from 1.0 to 1.8.4. The vinyl-based comb copolymer according to claim 1 , wherein a number-average molecular weight (Mn) of the polyisobutylene-based macromonomer ranges from 1 claim 1 ,000 to 200 claim 1 ,000 as a value obtained by size exclusion chromatography (SEC) measurement based on polystyrene standards.5. The vinyl-based comb copolymer according to claim 1 , wherein Rin the general formula (1) is at least one divalent hydrocarbon group selected from the group consisting of —CHCH— claim 1 , —CHCHCH— claim 1 , and —CHCHCHCH—.6. The vinyl-based comb copolymer according to claim 1 , wherein Rand Rin the general formula (1) are each hydrogen.7. The vinyl-based comb copolymer according to claim 1 , wherein Rin the general formula (1) is a methyl group.9. A method for producing the vinyl-based comb copolymer according to claim 1 , the method comprising copolymerizing the polyisobutylene-based macromonomer with the vinyl-based monomer.10. A viscosity index improver containing the comb copolymer according to .11. A lubricating oil composition containing the comb copolymer according to . One ...

Method of improving vehicle transmission operation through use of specific lubricant compositions

A vehicle transmission incorporating a wet clutch, said clutch being lubricated by a transmission fluid containing a major amount of a lubricating oil and a minor amount of an additive composition including: (i) a compound of structure (I): wherein a is an integer from 1 to 10 and R is a hydrocarbon group made by the metallocene-catalysed polymerisation of an alphaolefin feedstock, said feedstock being 1-octene, 1-decene, 1-dodecene or any mixture thereof; (ii) a friction modifier; and (iii) an oil-soluble phosphorus compound.

POLY(METH)ACRYLATE COPOLYMERS WITH BRANCHED C17 ALKYL CHAINS AND THEIR USE IN LUBRICANT OIL COMPOSITIONS

The presently claimed invention is directed to poly(meth)acrylate copolymers containing alkyl(meth)acrylate comonomer with branched C17 alkyl group. The invention is further related to lubricating oil compositions comprising poly(meth)acrylate copolymers containing alkyl(meth) acrylate comonomer with branched C17 alkyl group as viscosity index improving component. 115.-. (canceled)16. A poly(meth)acrylate copolymer that is obtained by polymerizing a mixture comprising:(A) C17 alkyl (meth)acrylate, where C17 alkyl chain is branched with a mean degree of branching between 2.0 and 4.0,(B) methyl methacrylate and/or methyl acrylate, and(C) alkyl methacrylate and/or alkyl acrylate with a linear or branched C2 to C30 alkyl chain.17. The copolymer of claim 16 , wherein the C17 alkyl chain is branched with a mean degree of branching between 2.8 and 3.7.18. The copolymer of claim 16 , wherein the copolymer has a weight average molecular weight Mof from 10 claim 16 ,000 to 800 claim 16 ,000 determined by gel permeation chromatography according to DIN 55672-1.19. The copolymer of claim 16 , wherein the amount of comonomer (A) is from 5 to 80 wt.-% claim 16 , based on the total weight of the poly(meth)acrylate copolymer.20. The copolymer of claim 16 , wherein the amount of comonomer (B) is from 5 to 40 wt.-% claim 16 , based on the total weight of the poly(meth)acrylate copolymer.21. The copolymer of claim 16 , wherein the amount of comonomer (C) is from 15 to 80 wt.-% claim 16 , based on the total weight of the poly(meth)acrylate copolymer.22. The copolymer of claim 16 , wherein the linear or branched C2 to C30 alkyl chain is selected from the group consisting of ethyl claim 16 , n-propyl claim 16 , iso-propyl claim 16 , n-butyl claim 16 , iso-butyl claim 16 , sec-butyl claim 16 , tert-butyl claim 16 , pentyl claim 16 , hexyl claim 16 , heptyl claim 16 , octyl claim 16 , 2-ethylhexyl claim 16 , 2-propyl heptyl claim 16 , nonyl claim 16 , decyl claim 16 , stearyl claim 16 , ...

Polyacrylate Antifoam Components With Improved Thermal Stability

There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved thermal stability in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. 2. The lubricating composition of claim 1 , further comprising a phosphorous-containing component.3. The lubricating composition of claim 2 , wherein the phosphorous-containing component comprises one or more of a phosphite claim 2 , a phosphorus-containing amide claim 2 , a phosphorus-containing carboxylic acid or ester claim 2 , a phosphorus-containing ether claim 2 , and mixtures and derivatives thereof.4. The lubricating composition of claim 1 , wherein the acrylate monomer (i) is present in an amount of about 80 wt % claim 1 , or about 85 wt % claim 1 , and the comonomer (ii) is present in an amount of about 15 wt % claim 1 , or about 20 wt %.5. The lubricating composition of claim 1 , wherein the acrylate monomer (i) comprises C6-C8 alkyl esters of acrylic acid.6. The lubricating composition of claim 1 , wherein the acrylate monomer (i) comprises 2-ethylhexyl acrylate.7. The lubricating composition of claim 1 , wherein the comonomer (ii) comprises ethyl acrylate or propyl acrylate.8. The lubricating composition of claim 1 , wherein the acrylate monomer (i) is 2-ethylhexyl acrylate and the comonomer (ii) is ethyl acrylate.9. The lubricating composition of claim 8 , wherein the acrylate monomer (i) is present in an amount of 85 wt % and the comonomer (ii) is present in an amount of 15 wt %.10. The lubricating composition of claim 1 , wherein the antifoam component has a Mof from 22 claim 1 ,000 to 27 claim 1 ,000 Da.11. The lubricating composition of claim 1 , wherein the antifoam component is present in the lubricating composition in an amount from 50 ppm to about 600 ppm.12. The lubricating composition of claim 1 , further comprising at least one further additive selected from the group consisting of ...

LUBRICATING OIL COMPOSITION

A lubricating oil composition which can reduce the occurrence frequency of LSPI and which can ensure detergency. The lubricating oil composition which includes a lubricant base oil, a compound having calcium and/or magnesium, a compound having molybdenum and/or phosphorus, and an ashless dispersant having nitrogen and which satisfies X≦−0.85 and Y≧0.18 (wherein X is calculated according to formula (1): X=([Ca]+0.5[Mg])×8−[Mo]×8−[P]×30 and Y is calculated according to formula (2): Y=[Ca]+1.65[Mg]+[N]). The lubricating oil composition for use in an internal combustion engine, more particularly, a lubricating oil composition for use in a supercharged gasoline engine. 1. A lubricating oil composition , comprising: a lubricating oil base oil , a compound having at least one element selected from calcium and magnesium , a compound having at least one element selected from molybdenum and phosphorous , and an ashless dispersant having nitrogen; wherein , {'br': None, 'X=([Ca]+0.5[Mg])×8−[Mo]×8−[P]×30\u2003\u2003(1)'}, 'X as determined from following equation (1)wherein [Ca], [Mg], [Mo] and [P] in equation (1) respectively represent the concentrations (wt %) of calcium, magnesium, molybdenum and phosphorous in the lubricating oil composition,satisfies the expression X≦−0.85; and, {'br': None, 'Y=[Ca]+1.65[Mg]+[N]\u2003\u2003(2)'}, 'Y as determined from following equation (2)wherein [Ca], [Mg] and [N] in equation (2) respectively represent the concentrations (wt %) of calcium, magnesium and nitrogen derived from ashless dispersant in the lubricating oil composition,satisfies the expression Y≧0.18.2. The lubricating oil composition according to claim 1 , wherein Z as determined from following equation (3):{'br': None, 'Z=[N]/([Ca]+[Mg])\u2003\u2003(3)'}wherein [Ca], [Mg] and [N] respectively represent the concentrations (wt %) of calcium, magnesium and nitrogen derived from an ashless dispersant in the lubricating oil composition,further satisfies the expression 0.3≦Z≦1.5.3. ...

Lubricating oil composition for internal combustion engine

Provided is a lubricating oil composition for internal combustion engine, which further reduces the friction to exhibit excellent fuel efficiency performance. A lubricating oil composition for internal combustion engine, which contains (A) a lubricant base oil having a dynamic viscosity of 2.0 to mm 2 /s at 100° C., (B) a molybdenum-based friction modifier in an amount of 0.005 to 0.2% by mass, in terms of a molybdenum content, based on the mass of the composition, (C) a salicylate-based metal detergent in an amount of 0.01 to 1% by mass, in terms of a metal content, based on the mass of the composition, and (D) at least one compound selected from amino acids having an alkyl group, alkenyl group, or acyl group having 15 to 24 carbon atoms and/or derivatives thereof in an amount of 0.01 to 10% by mass.

Compositions of thermoassociative additives with controlled association and lubricant compositions containing them

The present disclosure relates to novel compositions of additives that result from mixing at least two thermoassociative and exchangeable copolymers and at least one compound for controlling the association of these two copolymers. A lubricant composition results from mixing at least one lubricating base oil, at least two thermoassociative and exchangeable copolymers and at least one compound for controlling the association of these two copolymers. The present disclosure also relates to a process for modulating the viscosity of a lubricant composition that results from mixing at least one lubricating base oil, at least two thermoassociative and exchangeable copolymers; as well as the use of a diol compound for modulating the viscosity of a lubricant composition.

NOVEL FLUORINATED POLYACRYLATES ANTIFOAMS IN ULTRA-LOW VISCOSITY (<5 CST) FINISHED FLUIDS

There is disclosed an antifoam component for a mechanical device which includes a poly(acrylate) copolymer. The antifoam component has improved foam performance in finished fluids utilizing dibutyl hydrogen phosphite compounds, such as driveline fluids. A lubricating composition comprising a) at least one oil of lubricating viscosity; and b) an antifoam component comprising a poly(acrylate) copolymer. The poly(acrylate) copolymer, b) may include (i) from about 30 wt % up to about 99 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and (ii) from about 1 wt % up to about 70 wt % of a fluorinated (meth)acrylate monomer. 1. A lubricating composition comprising:a) at least one oil of lubricating viscosity; and [{'sub': 1', '4, '(i) from about 40 wt % up to about 80 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and'}, '(ii) from about 20 wt % up to about 60 wt % of a fluorinated (meth)acrylate monomer;', {'sub': 'w', 'the antifoam component having a Mof at least 1,000 Daltons.'}], 'b) an antifoam component comprising a poly(acrylate) copolymer including2. The lubricating composition of claim 1 , wherein the (meth)acrylate monomer has Cto Calkyl esters of (meth)acrylic acid.3. A lubricating composition comprising:a) at least one oil of lubricating viscosity; and [{'sub': 1', '3, '(i) from about 20 wt % up to about 55 wt % of a (meth)acrylate monomer having Cto Calkyl esters of (meth)acrylic acid; and'}, '(ii) from about 5 wt % up to about 50 wt % of a fluorinated (meth)acrylate monomer; and', {'sub': 4', '12, '(iii) from about 20 wt % up to about 75 wt % of a (meth)acrylate comonomer having Cto Calkyl esters of (meth)acrylic acid;'}], 'b) an antifoam component comprising a poly(acrylate) copolymer including{'sub': 'w', 'the antifoam component having a Mof at least 1,000 Daltons.'}4. (canceled)5. The lubricating composition of or claim 1 , wherein the at least one oil of lubricating viscosity is a Group I ...

Solid lubricant and method of making the same

A solid-state lubricant composition is disclosed. The solid-lubricant contains graphene, an oxide of a metal, and one or more polymeric binders. A method of making a solid-state lubricant coating on various substrates is disclosed. The method includes the steps of making a homogeneous slurry comprising powder of an oxide of a metal, graphene, and a polymeric binder with organic volatile solvent; coating a substrate with the homogeneous slurry with desired thicknesses; and drying the slurry on the substrate naturally or applying additional heat, resulting in a solid lubricant coating on the substrate. Substrates with coated solid composite lubricant show wear reduction and lower coefficient of friction compared with uncoated substrates.

High viscosity index lubricating oil base stock and viscosity modifier combinations, and lubricating oils derived therefrom

A lubricating composition including a first base stock component including: one or more metallocene catalyzed polyalphaolefins (mPAOs), each mPAO having a kinematic viscosity (Kv 100 ) from 40 cSt to 155 cSt and a viscosity index (VI) from 150 to 207; a second base stock including one or more polyalphaolefins (PAOs), each PAO having a kinematic viscosity (Kv 100 ) less than 10 cSt and a VI from 130 to 145; and a viscosity modifier including a copolymer having units derived from monomers of (i) an α-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof esterified with an alcohol. A lubricant including the above lubricating composition. A method for improving fuel efficiency, while maintaining or improving wear control, load carrying capacity and/or traction reduction in a driveline device, e.g., gears and transmissions, lubricated with a lubricating oil, by using as the lubricating oil the above lubricant.

Composition Containing a Block Copolymer and a Method of Lubricating an Internal Combustion Engine

The invention provides a lubricating composition containing an oil of lubricating viscosity and a block copolymer. The block copolymer may contain (a) a hydrophobic first block having Calkyl (meth)acrylic units, wherein at least 50 wt % of the Calkyl (meth)acrylic units are Calkyl (meth)acrylic units, and up to 50 wt % of the Calkyl (meth)acrylic units are Calkyl (meth)acrylic units, with the proviso that alkyl groups of the Calkyl (meth)acrylic units have an average total number of carbon atoms of at least 8; and (b) a second block having (meth)acrylic units further having a heteroatom-containing group providing a polar group. The invention further relates to a method of lubricating an internal combustion engine by lubricating the engine with the lubricating composition. The invention further relates to the use of the block copolymer as an emulsifier and/or pour point depressant. 128-. (canceled)29. A method of operating an internal combustion engine of a vehicle fueled with a mixed gasoline/alcohol fuel , comprising supplying to the engine a lubricating composition comprising an oil of lubricating viscosity and a block copolymer having emulsifier properties , wherein the block copolymer comprises a diblock comprising:{'sub': 1-30', '1-30', '12-18', '1-30, '(a) a hydrophobic first block having Calkyl (meth)acrylic units, wherein the Calkyl (meth)acrylic units comprise Calkyl methacrylic units, with the proviso that alkyl groups of the Calkyl methacrylic units have an average total number of carbon atoms of at least 8; and'}{'sub': '12-18', '(b) a second block having Calkyl methacrylic units which further have a non-carbonyl heteroatom-containing group providing a polar group to such units, the heteroatom-containing group derived from a nitrogen-containing group, whereby said second block exhibits greater hydrophilicity than does the hydrophobic first block,'}wherein the mixed gasoline/alcohol fuel contains from 5 wt % to 85 wt % alcohol.30. The method of claim 29 , ...

Polymeric Surfactants for Improved Emulsion and Flow Properties at Low Temperatures

A polymer surfactant for improving engine oil emulsion properties of a lubricating composition mixed with water and/or fuel contamination, particularly at very cold temperatures, is described herein. In approaches, selected polymeric and functionalized compounds can impart both robust emulsion properties and simultaneously deliver good low temperature fluidity for lubricating compositions that may contain residual amounts of water and/or fuel contamination. Lubricating compositions including such surfactants demonstrate robust properties at temperatures down to about −30° C.

LUBRICATING OIL COMPOSITION

Provided is a lubricating oil composition, which has low viscosity but also prolonged anti-shudder life without reduction of intermetallic friction coefficient. The lubricating oil composition is characterized in comprising (A) a lubricating base oil, and (C) (C-1) a borated succinimide compound with a mass average molecular weight of 4,000-7,000 and (C-2) a borated succinimide compound with a mass average molecular weight of greater than 7,000-10,000. 1. A lubricating oil composition , comprising:(A) a lubricating base oil; and '(C-2) a boronated succinimide compound having a weight-average molecular weight of more than 7,000 and not more than 10,000.', '(C) (C-1) a boronated succinimide compound having a weight-average molecular weight of 4,000 to 7,000 and'}2. The lubricating oil composition according to claim 1 , wherein part or all of component (A) comprises a poly(α-olefin) or α-olefin copolymer having a kinematic viscosity at 100° C. of 6 to 80 mm/s in an amount of 5 to 30% by weight based on a total weight of the lubricating oil composition; andwherein the lubricating oil composition further comprises (B) a polymethacrylate having a weight-average molecular weight of 15,000 to 40,000.3. The lubricating oil composition according to claim 1 , wherein each of component (C-1) and component (C-2) contains 0.1 to 3% by weight of boron based on a weight of component (C-1) or component (C-2).4. The lubricating oil composition according to claim 1 , wherein a weight ratio of component (C-2) to component (C-1) claim 1 , i.e. claim 1 , (C-2)/(C-1) is 1 to 10.5. The lubricating oil composition according to claim 1 , wherein the lubricating oil composition has a kinematic viscosity at 100° C. of 3 to 10 mm /s.6. The lubricating oil composition according to claim 1 , wherein the lubricating oil composition has a viscosity index of 150 or more.7. The lubricating oil composition according to claim 1 , further comprising (D) a metal detergent.8. The lubricating oil ...

Method for improving deposit control and cleanliness performance in an engine lubricated with a lubricating oil

wherein [Gn] is the weight percent of each of n dispersants in the formulated oil, [Bm] is the weight percent of each of m viscosity modifiers in the formulated oil, dV/d[Gn] is the kinematic viscosity (Kv100) increase of the lubricating oil per the weight percent of each of n dispersants in the formulated oil, and dV/d[Bm] is the kinematic viscosity (Kv100) increase of the lubricating oil per the weight percent of each of m viscosity modifiers in the formulated oil.

Lubricant compositions and methods for using the same

A lubricant composition with improved stability and tolerance for water hardness comprises a synthetic wax emulsion; an amine derivative; an emulsifier; and a sequestrant. The synthetic wax emulsion may include poly(ethyleneoxide)-based or poly(propyleneoxide)-based wax emulsions. The amine derivative may include alkyl C 12 -C 14 oxy propyl diamine. The lubricant composition can be used for lubricating the passage of a container along a conveyor. The method includes applying the lubricant composition to at least a part of the container or the conveyor in an application cycle, where the application cycle includes a first period of time of dispensing the lubricant composition and a second period of time of not dispensing the lubricant composition.

LUBRICATING OIL COMPOSITION

Disclosed is a lubricating oil composition comprising: a lubricating base oil comprising 0.5% to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and having a kinematic viscosity at 40° C. of 18 to 28 mm/s; and an organic molybdenum compound in an amount of 100 to 1000 mass ppm in terms of the molybdenum element based on the total amount of the lubricating oil composition, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of 50 mm/s or less. 14-. (canceled)5. A lubricating oil composition comprising:{'sup': '2', 'a lubricating base oil comprising 1% to 70% by mass of an ester base oil based on the total amount of the lubricating base oil, and said lubricating base oil having a kinematic viscosity at 40° C. of 22 to 26 mm/s; wherein the amount of the lubricating base oil is 67.5% by mass or more; and'}molybdenum dithiocarbamate in an amount of 100 to 1000 mass ppm in terms of molybdenum element based on the total amount of the lubricating oil composition, wherein{'sup': '2', 'the lubricating oil composition has a kinematic viscosity at 40° C. of 10 of 50 mm/s or less,'}the lubricating oil composition further comprising 2.5% to 24% by mass of a copolymer of an α-olefin and an α,β-ethylenically unsaturated dicarboxylic acid diester, based on the total amount of the lubricating oil composition, wherein the weight-average molecular weight of the copolymer is 6000 to 15000,the lubricating oil further comprising a boron-containing dispersant in an amount of 100 to 500 mass ppm in terms of boron element based on the total amount of the lubricating oil composition,wherein the lubricating oil composition is free of styrene-maleic anhydride ester.6. The lubricating oil composition according to claim 5 , wherein the lubricating base oil comprises a synthetic base oil comprising a poly-α-olefin.7. A method of lubricating a hypoid gear comprising utilizing the lubricating oil composition of . The present invention ...

LUBRICATING OIL COMPOSITION

A lubricating oil composition including: a lubricating base oil; (A) a dispersant poly(meth)acrylate compound having a weight average molecular weight of 30,000 to 200,000 in an amount of 1 to 10 mass % on the basis of the total mass of the composition; and (B) a non-dispersant poly(meth)acrylate compound having a weight average molecular weight of 15,000 to 100,000 in an amount of no more than 15 mass % on the basis of the total mass of the composition, wherein the ratio MA/MB of the amount MA of the component (A) to the amount MB of the component (B) is 0.05 to 1; and the ratio MwB/MwA of the weight average molecular weight MwB of the component (B) to the weight average molecular weight MwA of the component (A) is 0.05 to 2. 1. A lubricating oil composition comprising:a lubricating base oil;(A) a dispersant poly(meth)acrylate compound having a weight average molecular weight of 30,000 to 200,000 in an amount of 1 to 10 mass % on the basis of the total mass of the composition; and(B) a non-dispersant poly(meth)acrylate compound having a weight average molecular weight of 15,000 to 100,000 in an amount of no more than 15 mass % on the basis of the total mass of the composition,wherein a ratio MA/MB of the amount MA of the component (A) to the amount MB of the component (B) is 0.05 to 1; anda ratio MwB/MwA of the weight average molecular weight MwB of the component (B) to the weight average molecular weight MwA of the component (A) is 0.05 to 2.2. The lubricating oil composition according to claim 1 ,the lubricating base oil consisting of: at least one Group II mineral base oil of API base stock categories, at least one Group III mineral base oil of API base stock categories, at least one Group IV synthetic base oil of API base stock categories, or at least one Group V synthetic base oil of API base stock categories, or any combination thereof,{'sup': '2', 'wherein the lubricating base oil has a kinematic viscosity at 100° C. of 2.5 to 4.5 mm/s.'}3. The lubricating ...

LUBRICATING OIL COMPOSITION AND USE METHOD THEREFOR

Provided are a lubricating oil composition used in a diesel engine equipped with a forced-induction compressor, containing a base oil (A) containing a poly-α-olefin (A1), and a viscosity index improver (B) having an SSI (shear stability index) of 20 or less, having a distillation amount of a light fraction of 496° C. or less in a gas chromatography distillation test of less than 80% by volume, having a high retention of the effect of suppressing the formation of deposits that may occur inside the compressor, and being capable of retaining a high efficiency of the compressor for a long period of time, in the use thereof in a diesel engine equipped with a forced-induction compressor having an outlet temperature of the compressor becoming a high temperature reaching 190° C. or more, and a method for using the lubricating oil composition. 1. A lubricating oil composition used in a diesel engine equipped with a forced-induction compressor ,comprising a base oil (A) containing a poly-α-olefin (A1), and a viscosity index improver (B) having an SSI (shear stability index) of 20 or less, andhaving a distillation amount of a light fraction of 496° C. or less in a gas chromatography distillation test of less than 80% by volume.2. The lubricating oil composition according to claim 1 , wherein the viscosity index improver (B) contains at least one of a star polymer (B1) and a comb polymer (B2).3. The lubricating oil composition according to claim 2 , wherein the lubricating oil composition has contents of the star polymer (B1) and the comb polymer (B2) in terms of resin component each independently of 0.01 to 10% by mass based on the total amount of the lubricating oil composition.4. The lubricating oil composition according to claim 2 , wherein the viscosity index improver (B) contains a star polymer (B1) and a polymethacrylate (B3).5. The lubricating oil composition according to claim 4 , wherein the lubricating oil composition has a content of the polymethacrylate (B3) in ...

Lubricating oil composition

A lubricating oil composition of the invention contains a first base oil having a kinematic viscosity at 100 degrees C. in a range from 0.6 mm 2 /s to 3.5 mm 2 /s and a first poly(meth)acrylate having a mass average molecular weight in a range from 3×10 4 to 5×10 4 .

POLYMERS AS ADDITIVES FOR FUELS AND LUBRICANTS

The present invention relates to novel uses of corrosion inhibitors in fuels and lubricants. 1: A method for improving a fuel or a lubricant , the method comprising:adding at least one copolymer to the fuel or the lubricant, at least 4 acid groups per polymer chain,', 'a ratio of carbon atoms per acid group of 7 to 35, and', 'an acid number of 80 to 320 mg KOH/g, determined by potentiographic titration with 0.5 molar aqueous hydrochloric acid after heating in a 0.5 molar ethanolic potassium hydroxide solution for three hours, and, 'wherein the copolymer comprises a statistical average of'}wherein the adding results in the copolymer functioning as at least one selected from the group consisting of a fuel additive for reducing the fuel consumption of a direct injection diesel engine, for minimizing power loss in a direct injection diesel engine, or both, a diesel fuel additive for reducing deposits, preventing deposits, or both in a fuel system, and a gasoline fuel additive for reducing the level of deposits in an intake system of a direct injection spark ignition gasoline engine, a port fuel injector gasoline engine, or both.2: The method according to claim 1 , wherein the acid groups are carboxyl groups.3: The method according to claim 1 , wherein the copolymer comprises up to 50 acid groups per polymer chain.4: The method according to claim 1 , wherein the copolymer comprises not more than 5 functional groups other than oxygen-containing functional groups and nitrogen-containing functional groups per polymer chain.5: The method according to claim 1 , wherein the copolymer comprises not more than 3 oxygen-containing functional groups per polymer chain other than carbonate groups claim 1 , ether groups or ester groups.6: The method according to claim 1 , wherein the copolymer comprises not more than 20 ether groups per polymer chain.7: The method according to claim 1 , wherein the copolymer comprises not more than 50 ester groups or carbonate groups per polymer chain ...

Process for Preparing Polymers and Compositions Thereof

The present invention provides a process for preparing a polymer, employing the steps of: (1) contacting a free radical initiator; a chain transfer agent containing a thiocarbonyl thio group and a free radical leaving group; and a radically polymerisable monomer, to form a polymer chain; and (2) contacting the polymer chain of step (1) with at least one of a polyvalent coupling agent, a polymerisation inhibitor, a grafting acylating agent, an amine and an oil of lubricating viscosity. The invention further provides compositions and uses for the polymer. 1. A composition comprising an oil of lubricating viscosity and a star polymer derived from at least two monomers comprising:(a) at least 50 wt % of a mixture of C12 to C15 alkyl substituted (meth)acrylate monomers; and(b) less than 50 wt % of an alkyl (meth)acrylate monomer containing 1 to 30 carbon atoms in the alkyl group, other than the C12 to C15 alkyl substituted (meth)acrylate monomer;(c) optionally containing less than 20 wt % styrene; and(d) optionally containing less than 10 wt % alkyl methacrylamide, wherein the star-polymer has about 7 to about 50 arms present on the star polymer, and wherein the star polymer is prepared by a reversible addition-fragmentation chain transfer controlled radical polymerisation process.2. The composition of claim 1 , wherein the star polymer is derived from at least two monomers consisting essentially of:(a) at least 50 wt % of a mixture of C12 to C15 alkyl substituted (meth)acrylate monomers; and(b) less than 50 wt % of an alkyl (meth)acrylate monomer containing 1 to 30 carbon atoms in the alkyl group, other than the C12 to C15 alkyl substituted (meth)acrylate monomer.3. The composition of claim 1 , wherein the star polymer is derived from at least two monomers comprising:(a) at least 50 wt % of a mixture of C12 to C15 alkyl substituted (meth)acrylate monomers; and(b) less than 50 wt % of an alkyl (meth)acrylate monomer containing 1 to 30 carbon atoms in the alkyl group, ...

METHOD FOR STERILIZING A SUBSTRATE HAVING A HYDROPHILIC COATING AND STERILIZED SUBSTRATES

Methods for sterilizing a substrate with radiation and radiation sterilized substrates. 1. A method for sterilizing a substrate having a hydrophilic coating , said method comprising:contacting the hydrophilic coating of the substrate with a wetting fluid containing one or more non-polymeric polyols, the hydrophilic coating including a hydrophilic polymer and low molecular diacrylate; andsterilizing the medical device by applying a sufficient amount of radiation while the device is in contact with the wetting fluid.2. The method of wherein the substrate device comprises a urinary catheter.3. The method of wherein the one or more non-polymeric polyols comprises one or more of Glycerol claim 1 , Erythritol claim 1 , Threitol claim 1 , Arabitol claim 1 , Xylitol claim 1 , Adonitol claim 1 , Mannitol claim 1 , Sorbitol claim 1 , Galactitol claim 1 , Fucitol claim 1 , Iditol claim 1 , Inositol claim 1 , Volemitol claim 1 , Isomalt claim 1 , Maltitol claim 1 , Lactitol claim 1 , Maltotriitol claim 1 , and Maltotetraitol.5. The method of wherein the one or more non-polymer polyols comprises Glycerol.6. The method of wherein the one or more non-polymeric polyols is between about 5 wt % and about 50 wt % of the wetting fluid.7. The method of wherein the one or more non-polymeric polyols is between about 10 wt % and about 20 wt % of the wetting fluid.8. The method of wherein the one or more non-polymeric polyols is about 5 wt % of the wetting fluid.9. The method of wherein the low molecular diacrylate comprises polyethylene glycol diacrylate.10. The method of wherein the number average molecular weight of the polyethylene glycol diacrylate is less than about 600.11. The method of wherein the polyethylene glycol diacrylate has a number average molecular weight between about 200 and about 600.12. The method of wherein hydrophilic coating comprises about 80 wt % to about 95.5 wt % hydrophilic polymer and about 0.5 wt % to about 20 wt % polyethylene glycol diacrylate.13. The ...

Novel formulation for lubrication of hyper compressors providing improved pumpability under high-pressure conditions

The present disclosure provides a lubricating composition with improved high-pressure pumpability and/or reduced viscosity at high pressures, as well as method of making and using the same. The lubricating composition includes a white oil and a polymeric thickener present in an amount equal to or less than about 40 wt % of the lubricating composition. The white oil has a kinematic viscosity of at least one of: about 80 mm2/sec to about 120 mm2/sec at 40° C. and/or about 9.5 mm2/sec to about 14 mm2/sec at 100° C.

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

A lubricating oil composition for an internal combustion engine has a HTHS viscosity at 150° C. of 2.55-2.84 mPa·s and includes: (A) a lubricating base oil including (a) mineral base oil(s) and/or (a) synthetic base oil(s), and having a kinematic viscosity at 100° C. of 3.8-4.6 mm/s; (B) 1000-2000 mass ppm, in terms of metal content, of a metallic detergent including (a) metal salicylate detergent(s), and delivering 10 mmol/kg of total salicylate soap base per kilogram of the composition; (C) 1.0 to 4.0 mass % of a comb-shaped poly(meth)acrylate having a Mw of 350,000-1,000,000 and a PDI of ≤4.0; and (D) 100-1000 mass ppm, in terms of nitrogen, of a succinimide dispersant including (i) (a) non-modified succinimide dispersant(s) and/or (ii) (a) boric acid-modified succinimide dispersant(s), wherein the (i) and the (ii), in total, deliver 70 mass % of total nitrogen content of the component (D). 1. A lubricating oil composition for an internal combustion engine , the composition comprising:{'sup': '2', '(A) a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, and having a kinematic viscosity at 100° C. of 3.8 to 4.6 mm/s;'}(B) a metallic detergent comprising at least one metal salicylate detergent, wherein the component (B) is present in an amount of 1000 to 2000 mass ppm in terms of metal content on the basis of the total mass of the composition, and wherein the component (B) is present in an amount of no less than 10 mmol/kg in terms of total molar amount of any salicylate soap base per kilogram of the composition;(C) at least one comb-shaped poly(meth)acrylate in an amount of 1.0 to 4.0 mass % in terms of resin content on the basis of the total mass of the composition, the comb-shaped poly(meth)acrylate having a weight average molecular weight of 350,000 to 1,000,000 and a polydispersity index of no more than 4.0; and(D) a succinimide dispersant in an amount of 100 to 1000 mass ppm in terms ...

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

A lubricating oil composition for an internal combustion engine has a HTHS viscosity at 150° C. of 2.25 to <2.55 mPa·s and includes: (A) a lubricating base oil including (a) mineral base oil(s) and/or (a) synthetic base oil(s), and having a kinematic viscosity at 100° C. of 3.8-4.6 mm/s; (B) 1000-2000 mass ppm, in terms of metal content, of a metallic detergent including (a) metal salicylate detergent(s), and delivering ≥10 mmol/kg of total salicylate soap base per kilogram of the composition; (C) 1.0 to 4.0 mass % of a comb-shaped poly(meth)acrylate having a Mw of 350,000-1,000,000 and a PDI of ≤4.0; and (D) 100-1000 mass ppm, in terms of nitrogen, of a succinimide dispersant including (i) (a) non-modified succinimide dispersant(s) and/or (ii) (a) boric acid-modified succinimide dispersant(s), wherein the (i) and the (ii), in total, deliver 70 mass % of total nitrogen content of the component (D).

POLYMERS AND THE USE THEREOF AS LUBRICATING AGENTS IN THE PRODUCTION OF ALKALI METAL FILMS

Polymers used as rolling lubricating agents, to compositions including said polymers, and to alkali metal films including the polymers or compositions on the surface(s) thereof. The use of said polymers and compositions is also described for strip-rolling alkali metals or alloys thereof in order to obtain thin films. Methods for producing said thin films, which are suitable for use in electrochemical cells, are also described. An improved lubricant according to formula I, which, for example, achieves enhanced conductivity, and/or enables the production of electrochemical cells having an improved life span in cycles. 1. (canceled)3. The method of claim 2 , wherein step (a) is carried out by the application of the lubricating agent on the alkali metal strip at the inlet of the rollers and/or by prior coating of the rolling rollers with or without further addition of lubricating agent directly onto the alkali metal strip before step (b).4. The method of claim 2 , wherein m and n are selected to provide that the molecular weight of the lubricating agent is from 2000 to 250 claim 2 ,000.5. The method of claim 4 , wherein m and n are selected to provide that the molecular weight of the lubricating agent is from 2000 to 50 claim 4 ,000.6. The method of claim 4 , wherein m and n are selected to provide that the molecular weight of the lubricating agent is from 50 claim 4 ,000 to 200 claim 4 ,000.7. The method of claim 2 , wherein R claim 2 , independently at each occurrence claim 2 , is a linear or branched monovalent hydrocarbon radical of formula CH claim 2 , wherein 8≤r≤18.8. The method of claim 2 , wherein Ris independently at each occurrence a linear or branched monovalent hydrocarbon radical of formula CH claim 2 , wherein 8≤t≤18.9. The method of claim 2 , wherein 8≤s≤50.10. The method of claim 2 , wherein the ratio of the repeated units A:B expressed as mole percent in the polymer is from 100:0 to 10:90.11. The method of claim 10 , wherein the ratio of the repeated ...

Lubricating oil composition for two wheeled vehicle, method for improving fuel economy of two wheeled vehicle using the lubricating oil composition, and method for producing the lubricating oil composition

The present invention provides a lubricating oil composition for two-wheeled vehicles, which is able to not only suppress a lowering of fatigue life of engine parts while making fuel saving properties (in particular, fuel saving properties at the time of low speed) favorable but also make clutch friction characteristics of two-wheeled vehicles favorable. The present invention is concerned with a lubricating oil composition for two-wheeled vehicles, including a base oil (A) having a viscosity index of 120 or more, an ethylene-propylene copolymer (B), and a metal-based detergent (C), wherein the content of the ethylene-propylene copolymer (B) is 0.30% by mass or more on the basis of the whole amount of the lubricating oil composition; the metal-based detergent (C) contains a calcium phenate (C1) and a calcium sulfonate (C2), and a mass ratio of the content (Ca 1 ) of the calcium phenate (C1) as expressed in terms of a calcium atom to the content (Ca 2 ) of the calcium sulfonate (C2) as expressed in terms of a calcium atom is satisfied with a relation of (1.0≤Ca 1 /Ca 2 ); and the lubricating oil composition has a kinematic viscosity at 100° C. is less than 9.3 mm 2 /s and an HTHS viscosity at 150° C. is 2.9 mPa·s or more.

USE OF A LUBRICANT COMPOSITION FOR REDUCING KNOCKING

The present disclosure relates to a lubricant composition including at least one base oil and at least one organic compound. The lubricant composition thus makes it possible to reduce, or even to eliminate knock in a vehicle engine, preferably a motor vehicle engine. 2. The method according to in which R1 represents:a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl group, comprising from 1 to 10 carbon atoms;an —OR7 group in which R7 represents a saturated or unsaturated, substituted or unsubstituted, linear or branched alkyl group, comprising from 1 to 10 carbon atoms; andan —NR8R9 group in which R8 and R9, identical or different, represent independently a hydrogen atom or a saturated or unsaturated, substituted or unsubstituted alkyl group, comprising from 1 to 3 carbon atoms3. The method according to in which R5 represents a hydrogen atom.4. The method according to in which R6 represents a hydrogen atom.5. The method according to in which R1 represents:a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms;an —OR7 group in which R7 represents a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; and R8 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms;', 'R9 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms., 'an —NR8R9 group in which6. The method according to in which R2 represents:a hydrogen atom;a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; R11 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms; and', 'R12 represents a hydrogen atom or a saturated alkyl group, comprising from 1 to 3 carbon atoms., 'an —NR11R12 group in which7. The method according to in which R3 represents:a hydrogen atom;a saturated, linear or branched alkyl group, comprising from 1 to 5 carbon atoms; R14 represents a hydrogen atom or a saturated alkyl ...

Viscosity index improver, lubricant oil additive, and lubricant oil composition

A viscosity index improver of the present invention contains a star polymer obtained by a reaction of divinylbenzene with alkyl methacrylate containing stearyl methacrylate, the star polymer having a core part and an arm part, wherein the core part is derived from the divinylbenzene and the arm part is a polymer chain of the alkyl methacrylate. A lubricant oil additive and a lubricant oil composition of the present invention contain the above viscosity index improver.

STAR POLYMERS AND COMPOSITIONS THEREOF

The invention provides a composition comprising: (a) a star polymer comprising: (i) a core portion comprising a polyvalent (meth) acrylic monomer, oligomer or polymer thereof or a polyvalent divinyl non-acrylic monomer, oligomer or polymer thereof; and (ii) at least two arms of polymerized alkyl (meth)acrylate ester; and (b) an oil of lubricating viscosity, wherein the core portion further comprises a functional group of formula (I): 1. (canceled)2. The composition of wherein the star polymer comprises greater than about 7 arms.3. The composition of wherein the star polymer comprises greater than about 10 arms.4. The composition of wherein the polyvalent (meth) acrylic monomer is an acrylic or methacrylic acid polyol or a condensation product of a polyamine.5. The composition of claim 4 , wherein the polyvalent unsaturated (meth) acrylic monomer is ethylene glycol diacrylate claim 4 , ethylene glycol dimethacrylate claim 4 , diethylene glycol diacrylate claim 4 , diethylene glycol dimethacrylate claim 4 , glycerol diacrylate claim 4 , glycerol triacrylate claim 4 , mannitol hexaacrylate claim 4 , 4-cyclohexanediol diacrylate claim 4 , 1 claim 4 ,4-benzenediol dimethacrylate claim 4 , pentaerythritol tetraacrylate claim 4 , 1 claim 4 ,3-propanediol diacrylate claim 4 , 1 claim 4 ,5-pentanediol dimethacrylate claim 4 , bis-acrylates and methacrylates of polyethylene glycols of molecular weight 200-4000 claim 4 , polycaprolactonediol diacrylate claim 4 , pentaerythritol triacrylate claim 4 , 1 claim 4 ,1 claim 4 ,1-trimethylolpropane triacrylate claim 4 , pentaerythritol diacrylate claim 4 , pentaerythritol triacrylate claim 4 , pentaerythritol tetraacrylate claim 4 , triethylene glycol diacrylate claim 4 , triethylene glycol dimethacrylate claim 4 , 1 claim 4 ,1 claim 4 ,1-trimethylolpropane trimethacrylate claim 4 , hexamethylenediol diacrylate or hexamethylenediol dimethacrylate or an alkylene bis-(meth)acrylamide.611-. (canceled)12. The composition of wherein the ...

Polymeric-inorganic nanoparticle compositions, manufacturing process thereof and their use as lubricant additives

The invention relates to polymeric-inorganic nanoparticle compositions and preparation processes thereof. The invention also relates to an additive and lubricant composition comprising these polymeric-inorganic nanoparticle compositions, as well as to the use of these polymeric-inorganic nanoparticle compositions in an oil lubricant formulation to improve tribological performance, in particular to improve anti-friction performance on metal parts.

Polymers as additives for fuels

A method for minimizing power loss, reducing a fuel consumption and/or for reducing and/or avoiding deposits in a fuel system in the direct injection diesel engines. The method contains adding a copolymer to a fuel composition, wherein the copolymer contains, in a copolymerized form: (A) an ethylenically unsaturated mono- or dicarboxylic acid or a derivative thereof, (B) an α-olefin having from 12 to 30 carbon atoms, (C) optionally an additional aliphatic or cycloaliphatic olefin which has at least 4 carbon atoms and is different from monomer (B) and (D) optionally an additional copolymerizable monomers other than monomers (A), (B) and (C), anhydride or carboxylic acid functionalities present in the copolymer are partly reacted with at least one compound (E) comprising an alcohol group and/or an amino group, and the anhydride functionalities present in the copolymer are hydrolysed and/or carboxylic ester functionalities present in the copolymer are partly hydrolyzed.

POLYOLEFIN-DERIVED DISPERSANTS

Ethylene-C-Calpha olefin copolymers, dispersants and lubricating oils/fuel compositions incorporating dispersants, and related methods are generally described herein. The copolymer may comprise ethylene-derived units and C-Calpha-olefin-derived units. The C-Calpha-olefin-derived units may have a carbon number from three to ten. For example, the C-Calpha-olefin-derived units may be propylene-derived units. The dispersants may be made from copolymers having low metal and/or fluorine contents. 1. A dispersant prepared by a process comprising: functionalizing a copolymer derived from ethylene and one or more Calpha-olefins ,wherein the copolymer has a number average molecular weight of less than 5,000 g/mol as measured by GPC using polystyrene as a calibration reference;{'sup': '1', 'wherein an ethylene unit content of the copolymer is less than 80 mol %, as measured by H-NMR spectroscopy;'}{'sup': 13', '1, 'wherein the copolymer has a terminal unsaturation of 70 mol % or greater, as measured by C-NMR spectroscopy, and at least 70 mol % of the terminal unsaturation is selected from terminal vinylidene, one or more tri-substituted isomers of the terminal vinylidene and any combination thereof, as measured by H-NMR spectroscopy;'}{'sub': 'C2,Actual', 'sup': '13', 'claim-text': {'br': None, 'sub': C2,Actual', 'C2,Statistical, 'n Подробнее

FARNESENE-BASED MACROMONOMERS AND METHODS OF MAKING AND USING THE SAME

A macromonomer precursor is provided that includes a polymeric chain derived from farnesene and a single functional terminal end. The functional terminal end may include a hydroxyl group, an amino group, an epoxy group, an isocyanato group, or a carboxylic acid group. The terminal end of the macromonomer precursor may then be reacted with a (meth)acrylate to form a macromonomer having a (meth)acrylate functionalized terminal end that may be (co)polymerized with radically polymerizable monomers, such as alkyl(meth)acrylate monomers. Alternatively, a copolymer may be obtained by first deriving a poly(meth)acrylate from (meth)acrylate monomers having reactive groups that would allow the macromonomer precursors to be grafted onto the poly(meth)acrylate in a second step. The resulting copolymer may be incorporated as an additive in various formulations, such as a lubricant, a hydraulic fluid, a cosmetic composition, and an adhesive composition. 1. A macromonomer precursor comprising:a polymeric chain derived from farnesene; anda single functional terminal end selected from a hydroxyl group, an amino group, an epoxy group, an isocyanato group, and a carboxylic acid group.2. The macromonomer precursor of claim 1 , wherein the polymeric chain is less than or equal to 10% saturated.3. The macromonomer precursor of claim 1 , wherein the farnesene comprises at least 25 wt. % of the macromonomer precursor.4. The macromonomer precursor of having a weight average molecular weight of from 1 claim 1 ,000 to 100 claim 1 ,000.5. The macromonomer precursor of claim 1 , wherein the polymeric chain is derived from farnesene and monomer selected from dienes claim 1 , vinyl aromatics claim 1 , and combinations thereof.6. A copolymer derived from monomers comprising:a) radically polymerizable monomers; and a polymeric chain derived from farnesene, and', 'a (meth)acrylate functionalized terminal end., 'b) one or more macromonomers comprising'}8. The copolymer of claim 7 , wherein the ...

LUBRICATING OIL COMPOSITION

A lubricating oil composition includes: a lubricant base having a kinematic viscosity at 100° C. of 1.0 to 10 mm/s and % Cof no less than 70; (A) 0.1 to 30 mass % of a poly(meth)acrylate viscosity index improver having a PSSI of no more than 5, a weight average molecular weight of 10,000 to 500,000, a ratio A/B of less than 2.4 and a ratio C/B of less than 1.4, the ratio A/B being a ratio of a viscosity increase effect A on kinematic viscosity at 100° C. to a viscosity increase effect B on HTHS viscosity at 150° C., and the ratio C/B being a ratio of a viscosity increase effect C on kinematic viscosity at 150° C. to the viscosity increase effect B on HTHS viscosity at 150° C.; and (B) 0.01 to 2.0 mass % of a friction modifier. 2. The lubricating oil composition according to claim 1 ,wherein the lubricant base oil has a NOACK evaporation loss at 250° C. of less than 15 mass %.3. The lubricating oil composition according to claim 2 ,{'sup': '4', 'wherein the (A) viscosity index improver has a ratio (Mw/PSSI) of the weight average molecular weight (Mw) to the PSSI of no less than 1×10.'}4. The lubricating oil composition according to claim 2 ,wherein the (B) friction modifier is a molybdenum-based friction modifier.5. The lubricating oil composition according to claim 2 ,wherein the lubricating oil composition has a NOACK evaporation loss at 250° C. of no more than 15 mass %.6. The lubricating oil composition according to claim 1 ,wherein the lubricant base oil has a NOACK evaporation loss at 250° C. of no less than 15 mass %; andthe poly(meth)acrylate viscosity index improver has a weight average molecular weight of 10,000 to 400,000.7. The lubricating oil composition according to claim 6 ,{'sup': '4', 'wherein the (A) viscosity index improver has a ratio (Mw/PSSI) of the weight average molecular weight (Mw) to the PSSI of no less than 1×10.'}8. The lubricating oil composition according to claim 6 ,wherein the (B) friction modifier is a molybdenum-based friction ...

Viscosity Index Improvers with defined Molecular Weight Distributions

Polyalkyl(meth)acrylate based comb polymers with weight-average molecular weights of 700,000 g/mol or greater and number-average molecular weights of 130,000 g/mol or greater can be used to improve the high temperature-high shear performance of lubricant compositions, especially of engine oil (EO) compositions. These polymers can be obtained in a reaction mixture comprising monomers, a dilution oil, and an initiator. The resulting lubricant compositions can have improved kinematic viscosity and high temperature high shear performance. 2. The polyalkyl(meth)acrylate based comb polymer according to claim 1 , wherein the weight-average molecular weight Mis from 700 claim 1 ,000 to 2 claim 1 ,000 claim 1 ,000 g/mol and the number-average molecular weight Mis from 130 claim 1 ,000 to 300 claim 1 ,000 g/moll claim 1 , determined by size exclusion chromatography (SEC) using commercially available polymethylmethacrylate standards.4. The polyalkyl(meth)acrylate based comb polymer according to claim 1 , comprising:(a) 10 to 25% by weight of the ester of (meth)acrylic acid and a hydroxylated hydrogenated polybutadiene;{'sub': '4-18', '(b) 0% to 5% by weight of at least one Calkyl acrylate;'}(c) 0% to 0.3% by weight of methyl methacrylate;(d) 60% to 75% by weight of n-butyl methacrylate;{'sub': '10-30', '(e) 5% to 20% by weight of the at least one Calkyl (meth)acrylate; and'}(f) 0% to 2% by weight of at least one styrene monomer.5. A method of increasing KVand in parallel decreasing HTHSand HTHSof a lubricating oil composition claim 1 , the method comprising adding the polyalkyl(meth)acrylate based comb polymer according to to a lubricating oil composition in need thereof.7. The additive composition according to claim 6 , wherein the weight-average molecular weight Mof component (B) is from 700 claim 6 ,000 to 2 claim 6 ,000 claim 6 ,000 g/mol and the number-average molecular weight Mis from 130 claim 6 ,000 to 300 claim 6 ,000 g/mol claim 6 , determined by size exclusion ...

LUBRICANT COMPOSITION CONTAINING AN ANTIWEAR AGENT

The invention provides a lubricant composition comprising an oil of lubricating viscosity and 0.01 wt % to 15 wt % of a protic acid salt of an N-hydrocarbyl-substituted gamma- (γ-) or delta- (δ-)amino(thio)ester. The invention further relates to a method of lubricating a mechanical device with the lubricant composition. 1. A lubricant composition comprising an oil of lubricating viscosity and 0.01 wt % to 15 wt % of a protic acid salt of an N-hydrocarbyl-substituted gamma- (γ-) or delta- (δ-)amino(thio)ester.2. The lubricant of claim 1 , the amino(thio)ester comprises a N-hydrocarbyl-substituted gamma-amino(thio)ester.3. The lubricant of claim 1 , the amino(thio)ester comprises a N-hydrocarbyl-substituted gamma-aminoester.4. The lubricant of claim 1 , wherein the amino(thio)ester has a N-hydrocarbyl substituent that comprises a hydrocarbyl group of at least 3 carbons atoms claim 1 , with a branch at the 1 or 2 position of the hydrocarbyl group claim 1 , provided that if the ester or thioester is a methyl ester or methyl thioester then the hydrocarbyl group has a branch at the 1 position claim 1 , and further provided that the hydrocarbyl group is not a tertiary group.5. The lubricant composition of claim 4 , wherein the amino(thio)ester comprises a 2-((hydrocarbyl)aminomethyl) succinic acid dihydrocarbyl ester.6. The lubricant composition of claim 4 , wherein the ester functionality comprises an alcohol-derived group which is a hydrocarbyl group having 1 to about 30 carbon atoms.7. The lubricant composition of wherein the ester functionality comprises an alcohol-derived group which is an ether-containing group.8. The lubricant composition of claim 1 , wherein the amino(thio)ester comprises first and second ester functionalities claim 1 , and wherein the first and second ester functionalities each comprise an alcohol-derived group having an alkyl moiety which is the same or different and having 1 to about 18 carbon atoms.14. The lubricant composition of claim 1 , ...

Lubricating oil composition, and sliding mechanism using lubricating oil composition

Disclosed is a lubricating oil composition for low-friction sliding materials, which is used in a sliding mechanism where a DLC film containing hydrogen in an amount of from 5 atom % to 50 atom % is formed on at least one sliding surface. The lubricating oil composition contains, in the lubricant base oil therein and based on the total amount of the composition, (A) an organic zinc dithiophosphate in an amount of from 0.005% by mass to 0.12% by mass in terms of the phosphorus concentration therein, (B) an amine-based friction-reducing agent in an amount of from 0.05% by mass to 5.0% by mass, and (C) an alkaline earth metal salicylate-based detergent and/or an alkaline earth metal sulfonate-based detergent in an amount of from 0.05% by mass to 0.5% by mass in terms of the alkaline earth metal concentration therein, wherein the component (A) contains, based on the total amount of the composition, a zinc primary dialkyldithiophosphate in an amount of from 0.005% by mass to 0.05% by mass in terms of the phosphorus concentration therein.

GRAFT COPOLYMER-CONTAINING SOLID PRODUCT AND USE THEREOF

A graft copolymer (C) having a main chain portion of a precursor polymer (A) and a graft portion from a polymer (B), wherein a core portion of the solid product comprises the main chain portion derived from (A), a shell portion comprises the graft portion derived from (B), and the solid product satisfies: Infrared absorption spectroscopic measurement of a section passing through a center (x) of the solid product, a point (z) on a surface where a distance between the center (x) and the surface is shortest, and a middle point (y) of a line connecting the center (x) and the point (z), absorbance (Abs) satisfies X<0.01, Y<0.01, and Z≥0.01, wherein X, Y, and Z represent values of Abs (key band of the polymer (B))/Abs (key band of the polymer (A)) at the center (x), the middle point (y) and the point (z). 1. A core-shell type polymer solid product comprising a graft copolymer (C) having: a main chain portion derived from a precursor polymer (A); and a graft portion derived from a polymer (B) different from the polymer (A) , wherein:a core portion (a) of the solid product comprises the main chain portion derived from the precursor polymer (A), and a shell portion (b) of the solid product comprises the graft portion derived from the polymer (B); andthe core-shell type polymer solid product satisfies the following requirement (I): [{'br': None, 'X<0.01,'}, {'br': None, 'Y<0.01, and'}, {'br': None, 'Z≥0.01,'}], 'Requirement (I): In infrared absorption spectroscopic measurement of a section passing through a center (x) of the solid product, a point (z) on a surface where a distance between the center (x) and the surface is shortest, and a middle point (y) of a line connecting the center (x) and the point (z), absorbance (Abs) at the center (x), at the middle point (y), and at the point (z) satisfy the following relationshipwhereinX represents a value of Abs (key band of polymer (B))/Abs (key band of polymer (A)) at the center (x),Y represents a value of Abs (key band of ...

VISCOSITY INDEX IMPROVER AND LUBRICATING OIL COMPOSITION

A viscosity index improver containing a copolymer (A) whose essential constituent monomer is a monomer (a) having a number average molecular weight of 800 to 4,000 represented by the following formula (1), the copolymer (A) having a solubility parameter in the range of 9.00 to 9.40: 3. The viscosity index improver according to claim 1 ,{'sup': '2', 'wherein in the formula (1), a structure derived from butadiene constituting a part or all of Rhas a 1,2-adduct/1,4-adduct molar ratio of 5/95 to 95/5.'}4. The viscosity index improver according to claim 1 ,wherein the copolymer (A) contains, as a constituent monomer, 10 to 50% by weight of the monomer (a) based on the weight of the copolymer (A).5. The viscosity index improver according to claim 1 ,wherein the copolymer (A) has a weight average molecular weight of 5,000 to 2,000,000.6. The viscosity index improver according to claim 1 ,wherein the copolymer (A) is a copolymer further containing an alkyl (meth)acrylate (b) having a C1-C4 alkyl group as a constituent monomer.10. The viscosity index improver according to claim 1 ,wherein the copolymer (A) is a copolymer further containing at least one monomer selected from the group consisting of a nitrogen atom-containing monomer (f), a hydroxyl group-containing monomer (g), a phosphorus atom-containing monomer (h), and an aromatic ring-containing vinyl monomer (i).12. A lubricating oil composition comprising:at least one base oil selected from the group consisting of API Group I to IV base oils, GTL base oils, and synthetic lubricant base oils; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the viscosity index improver according to ,'}wherein the amount of the copolymer (A) in the lubricating oil composition is 0.1 to 20% by weight.13. The lubricating oil composition according to claim 12 , further containing at least one additive selected from the group consisting of dispersants claim 12 , detergents claim 12 , antioxidants claim 12 , oiliness improvers claim 12 , ...

LUBRICATING OIL COMPOSITION

A lubricating oil composition which achieves extended anti-shudder durability without causing a decrease in the metal-to-metal friction coefficient, even when the viscosity of the composition is reduced. The lubricating oil composition includes (A) a lubricant base oil, (C) (C-1) a succinimide compound or boronated succinimide compound having a weight-average molecular weight of 4,000 to 7,000, (C-2) a succinimide compound or boronated succinimide compound having a weight-average molecular weight of more than 7,000 to 10,000, and (D) a phosphorus-based extreme pressure agent, the lubricating oil composition does not include zinc dithiophosphate and may optionally include a sulfur-based extreme pressure agent, provided that the content of sulfur-based extreme pressure agent is no more than 0.1 percent by weight of the lubricating oil composition. 1. A lubricating oil composition comprising(A) a lubricant base oil,(C) (C-1) a succinimide compound or a boronated succinimide compound having a weight-average molecular weight of 4,000 to 7,000, and (C-2) a succinimide compound or a boronated succinimide compound having a weight-average molecular weight of more than 7,000 and not more than 10,000, and 'wherein the lubricating oil composition does not comprise zinc dithiophosphate, and the lubricating oil composition may optionally comprise a sulfur-based extreme pressure agent, provided that a content of the sulfur-based extreme pressure agent is not more than 0.1 percent by weight based on the lubricating oil composition.', '(D) a phosphorus-based extreme pressure agent,'}2. The lubricating oil composition according to claim 1 , comprising claim 1 , as a part or all of the component (A) claim 1 , 5 to 30 percent by weight claim 1 , based on a total weight of the lubricating oil composition claim 1 , of a poly-α-olefin or α-olefin copolymer having a kinematic viscosity at 100° C. of 6 to 80 mm/s claim 1 , and further comprising (B) a polymethacrylate having a weight- ...

Lubricant Composition Containing an Antiwear Agent

The invention provides a lubricant composition comprising an oil of lubricating viscosity and a protic acid salt of an N-hydrocarbyl-substituted gamma-(γ-) or delta-amino(thio)ester. The invention further relates to a method of lubricating a mechanical device with the lubricant composition.

ADDITIVES FOR FUELS AND OILS COMPRISING FUNCTIONALISED DIBLOCK COPOLYMERS

Concentrates containing specific functionalised diblock copolymers serve as effective additives for improving the cold flow behaviour of fuels and oils, the copolymers being derived from a terminally-unsaturated intermediate polymer obtained via a metallocene process involving hydrogen. 4. The process of claim 1 , wherein R′ represents n-butyl.5. The process of claim 1 , wherein claim 1 , in the compound of formula (I) claim 1 , the aromatic ring substituent joined to the second block is positioned meta to the substituent joined to the first block.6. The process of wherein the third step c) is an anionic polymerisation reaction claim 1 , wherein the terminal double bond of the intermediate of formula (II) is reacted with a metallating reagent to form an anion which initiates polymerisation therefrom upon the addition of one or more α claim 1 ,β—unsaturated monomers selected from styrene claim 1 , substituted styrene claim 1 , acrylate claim 1 , methacrylate and diene compounds.8. The process of wherein the metallating reagent comprises n-butyl lithium or sec-butyl lithium.12. The intermediate of wherein each R group independently represents an alkyl group having from 1 to 4 carbon atoms.13. The intermediate of wherein each R group independently represents a methyl group.14. The intermediate of wherein R′ represents n-butyl.15. The intermediate of wherein the other aromatic ring substituent is positioned meta to the substituent joined to the first block.16 claim 15 , The intermediate of wherein the first block consists of a polyethylene chain.17. The intermediate of wherein the first block has a number average molecular weight (Mn) claim 16 , as measured by GPC against polystyrene standards claim 16 , in the range of 500 to 20000 g mol.18. The intermediate of wherein each R group independently represents an alkyl group having from 1 to 4 carbon atoms.19. The intermediate of wherein each R group independently represents a methyl group.20. The intermediate of wherein R ...

LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINE

A lubricating oil composition for an internal combustion engine, the composition including: a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, the lubricating base oil having a kinematic viscosity at 100° C. of 4.0 to 4.5 mm/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %; (A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium on the basis of the total mass of the composition; (B) a magnesium-containing metallic detergent in an amount of 100 to 1000 mass ppm in terms of magnesium on the basis of the total mass of the composition; and optionally (C) a viscosity index improver in an amount of less than 1 mass % on the basis of the total mass of the composition. 1. A lubricating oil composition for an internal combustion engine , the composition comprising:{'sup': '2', 'a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, the lubricating base oil having a kinematic viscosity at 100° C. of 4.0 to 4.5 mm/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %;'}(A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium on the basis of the total mass of the composition;(B) a magnesium-containing metallic detergent in an amount of 100 to 1000 mass ppm in terms of magnesium on the basis of the total mass of the composition; andoptionally (C) a viscosity index improver in an amount of less than 1 mass % on the basis of the total mass of the composition.2. The lubricating oil composition according to claim 1 ,the component (C) comprising: (C1) a poly(meth)acrylate viscosity index improver in an amount of no less than 95 mass % on the basis of the total mass of the component (C), the component (C1) having a weight average molecular weight of no ...

LUBRICANT AND METHOD OF PREPARING THE SAME

A lubricant, including, by weight: 80-85 parts of a base oil; 1-2 parts of a methyl-silicone oil; 1-2 parts of polymethacrylate; 2-4 parts of pentaerythritol polyisobutylene succinate; 1-2 parts of di-n-butyl phosphite; 2-3 parts of butylhydroxytoluene; 2-4 parts of an ethylene-propylene copolymer; 1-2 parts of an alkenyl succinate; and 3-5 parts of copper nanoparticles. A method of preparing the lubricant includes: adding the base oil, the methyl-silicone oil, the polymethacrylate, the ethylene-propylene copolymer, the butylhydroxytoluene, the alkenyl succinate to a reactor, and stirring a resulting first mixture under normal temperature and pressure at 300-400 rpm for 3-4 hours, to yield a primary product; and adding the di-n-butyl phosphite, the pentaerythritol polyisobutylene succinate, and the copper nanoparticles to the primary product, and stirring a resulting second mixture at 150-250 rpm for 2-2.5 hours. 1. A lubricant , comprising , by weight:80-85 parts of a base oil;1-2 parts of a methyl-silicone oil;1-2 parts of polymethacrylate;2-4 parts of pentaerythritol polyisobutylene succinate;1-2 parts of di-n-butyl phosphite;2-3 parts of butylhydroxytoluene;2-4 parts of an ethylene-propylene copolymer;1-2 parts of an alkenyl succinate; and3-5 parts of copper nanoparticles.2. The lubricant of claim 1 , wherein the base oil comprises 70 wt. % of a synthetic oil and 30 wt. % of a trimethylolpropane ester claim 1 , and the synthetic oil is a polyalphaolefin (PAO).3. The lubricant of claim 2 , wherein the polyalphaolefin (PAO) is PAO6 claim 2 , PAO8 claim 2 , or PAO10.4. The lubricant of claim 1 , wherein the lubricant comprises claim 1 , by weight:80 parts of the base oil;2 parts of the methyl-silicone oil;1 part of the polymethacrylate;4 parts of the pentaerythritol polyisobutylene succinate;2 parts of the di-n-butyl phosphite;3 parts of the butylhydroxytoluene;4 parts of the ethylene-propylene copolymer;1 part of the alkenyl succinate; and3 parts of the copper ...

LUBRICATING OIL COMPOSITION FOR CONTINUOUSLY VARIABLE TRANSMISSION

A lubricating oil composition for a continuously variable transmission including: (A) a lubricant base oil; (B) a borate ester compound in an amount of 25 to 500 mass ppm in terms of boron on the basis of the total mass of the composition; (C) phosphoric acid in an amount of 100 to 750 mass ppm in terms of phosphorus on the basis of the total mass of the composition; (D) a poly(meth)acrylate having a weight average molecular weight of no more than 100,000, wherein the lubricating oil composition has a kinematic viscosity at 40° C. of no more than 25 mm/s. 1. A lubricating oil composition for a continuously variable transmission comprising:(A) a lubricant base oil;(B) a borate ester compound in an amount of 25 to 500 mass ppm in terms of boron on the basis of the total mass of the composition;(C) phosphoric acid in an amount of 100 to 750 mass ppm in terms of phosphorus on the basis of the total mass of the composition;(D) a poly(meth)acrylate having a weight average molecular weight of no more than 100,000,{'sup': '2', 'wherein the lubricating oil composition has a kinematic viscosity at 40° C. of no more than 25 mm/s.'}2. The lubricating oil composition for a continuously variable transmission according to claim 1 , further comprising:(E) a thiadiazole compound in an amount of 180 to 900 mass ppm in terms of sulfur on the basis of the total mass of the composition,wherein a ratio (B+P)/S of a sum of a boron content B (unit: mass ppm) in the composition derived from the component (B) and a phosphorus content P (unit: mass ppm) in the composition to a sulfur content S (unit: mass ppm) in the composition derived from the component (E) is 1 to 3.3. The lubricating oil composition for a continuously variable transmission according to claim 1 ,the (A) lubricant base oil comprising:{'sup': '2', 'sub': 'P', '(Al) a base oil having a kinematic viscosity at 100° C. of no more than 2.8 mm/s, a viscosity index of no less than 110, and % Cof no less than 90, in an amount of 30 ...

LUBRICANTS CONTAINING BLENDS OF POLYMERS

A lubricant composition comprising (a) an oil of lubricating viscosity; (b) a (meth)-acrylate-containing polymer comprising a multiplicity of arms containing at least 20 carbon atoms, said arms being attached to a multivalent organic moiety; and (c) an ethylene/olefin copolymer having a weight average molecular weight of about 10,000 to about 250,000, wherein the copolymer comprises about 40 to about 70 weight percent polymerized ethylene monomers and optionally further comprises polymerized propylene monomers; exhibits good viscometric and antiwear properties. 1. A lubricant composition comprising:(a) an oil of lubricating viscosity;(b) a (meth)acrylate-containing polymer comprising a multiplicity of arms wherein the arms contain at least about 20 carbon atoms, said arms being attached to a multivalent organic moiety; and(c) an ethylene/olefin copolymer having a weight average molecular weight of about 5000 to about 250,000, wherein the copolymer comprises about 40 to about 70 weight percent polymerized ethylene monomer and further comprises one or more polymerized olefin monomers of 3 to 6 carbon atoms.2. (canceled)3. The lubricant composition of wherein said arms are polymeric entities comprising alkyl (meth)acrylate monomer units.4. The lubricant composition of wherein said arms are polymeric entities comprising comonomers of C10-C18 alkyl methacrylate groups and C1-C9 alkyl methacrylate groups.5. The lubricant composition of wherein the arms comprise random copolymers or block copolymers.6. (canceled)7. The lubricant composition of wherein the number of arms attached to the multivalent organic moiety is 3 to 20.8. The lubricant composition of wherein the number average molecular weight of the arms is about 10 claim 1 ,000 to about 200 claim 1 ,000.9. (canceled)10. The lubricant composition of wherein the (meth)-acrylate-containing polymer comprises a star polymer with multiple arms linked to a core.11. The lubricant composition of wherein the core comprises ...

MIXTURES OF FRICTION MODIFIERS TO PROVIDE GOOD FRICTION PERFORMANCE TO TRANSMISSION FLUIDS

Mixtures of friction modifiers provide excellent friction performance to transmission fluids, where the friction modifiers include an N-substituted oxalic acid bisamide or amide-ester containing at least two hydrocarbyl groups of 12 to 22 carbon atoms; and an amide or thioamide represented by RRN—C(X)Rwhere X is O or S, Rand Rare hydrocarbyl groups of at least 6 carbon atoms, and Ris hydroxyalkyl group of 1 to 6 carbon atoms or a condensate thereof. 1. A composition comprising:(a) an oil of lubricating viscosity;(b) about 0.05 to about 3.0 percent by weight of an N-substituted oxalic acid bisamide or amide-ester containing at least two hydrocarbyl groups of about 12 to about 22 carbon atoms; and{'sup': 1', '2', '3', '1', '2', '3, '(c) about 0.05 to about 3.0 percent by weight of an amide or thioamide represented by the formula RRN—C(X)Rwherein X is O or S, Rand Rare each independently hydrocarbyl groups of at least about 6 to 24 carbon atoms, and Ris hydroxyalkyl group of 1 to about 6 carbon atoms or a group formed by the condensation of said hydroxyalkyl group, through a hydroxyl group thereof, with an acylating agent.'}2. The composition of further comprising (d) about 1 to about 6 percent by weight of a dispersant component claim 1 , comprising one or more succinimide dispersants claim 1 , said dispersant component containing about 0.05 to about 1 percent by weight boron and having a TBN (oil free) of about 40 to about 100.7. The composition of wherein in (c) claim 1 , the amide or thioamide claim 1 , each of Rand Ris independently a 2-ethylhexyl group or a group of about 10 to about 18 carbon atoms.8. The composition of wherein in (c) claim 1 , the amide or thioamide claim 1 , is an amide.9. The composition of wherein (c) claim 1 , the amide or thioamide claim 1 , comprises a substituted nitrogen moiety claim 1 , RRN— claim 1 , comprising a di-cocoalkylamine moiety or a (2-ethylhexyl)(hydrogenated tallow)amine moiety and a carboxy moiety claim 1 , —C(O)R claim 1 ...

VISCOSITY INDEX IMPROVER, LUBRICANT COMPOSITION, AND METHOD FOR PRODUCING LUBRICANT COMPOSITION

A viscosity index improver including a comb-shaped polymer is provided. For a solution having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass %, a ratio of the storage modulus (G′) to the loss modulus (G″) of the solution measured at a measuring temperature of 70° C. is 0.40 or more. For a solution (α) at 25° C. having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass % and a solution (β) resulting from subjecting the solution (α) to heating to 100° C. at a prescribed temperature rise rate and then cooling to 25° C. at a prescribed cooling rate, a ratio of the storage modulus (G′) of the solution (β) to the storage modulus (G′) of the solution (α) measured at a measuring temperature of 25° C. is 2.0 or more. 1. A viscosity index improver , comprising a comb-shaped polymer and satisfying the following requirement:with respect to a solution having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass %, a ratio of a storage modulus G′ to a loss modulus G″ of the solution measured at a measuring temperature of 70° C., an angular frequency of 100 rad/s, and a strain of 20% is 0.40 or more.2. The viscosity index improver according to claim 1 , wherein the storage modulus G′ of the solution measured at a measuring temperature of 70° C. claim 1 , an angular frequency of 100 rad/s claim 1 , and a strain of 20% is 1.2×10Pa or more.3. A viscosity index improver claim 1 , comprising a comb-shaped polymer and satisfying the following requirement:with respect to a solution α at 25° C. having the viscosity index improver dissolved in a mineral oil and having a solid component concentration of 25 mass % and a solution β resulting from heating the solution α to 100° C. at a temperature rise rate of 0.2° C./s and then cooling to 25° C. at a cooling rate of 0.2° C./s, a ratio of a storage modulus G′ of the ...

Polyalkylene Glycol-Grafted Polycarboxylate Suspension and Dispersing Agent for Cutting Fluids and Slurries

Cutting fluids for brittle materials, e.g., silicon ingot, comprise, in weight percent: A. 70-99% polyalkylene glycol (PAG), e.g., polyethylene glycol; B. 0.01-10% PAG-grafted polycarboxylate; and C. 0-30% water. These cutting fluids are used with abrasive materials, e.g., silicon carbide (SiC), to form cutting slurries. The slurry is sprayed on the cutting tool, e.g., a wire saw, to cut a brittle work piece, e.g., a silicon ingot.

Lubricant composition

A lubricant composition improves a performance of reducing a formation of compressor deposit. The lubricant composition also ensures low temperature properties of the lubricant composition. The lubricant composition includes 14 mass % or more of a fraction having a boiling point of 500° C. to 550° C. and 5 mass % or more of a fraction having a boiling point of over 550° C.

TRANSMISSION LUBRICATING OIL COMPOSITION

Provided is a lubricating oil composition for a transmission having excellent gear properties, clutch properties, cooling properties, and electric insulating properties. The lubricating oil composition for a transmission preparing by blending (A) a base oil, (B) a viscosity index improver having a mass average molecular weight of 10,000 to 50,000, and (C-1) a polyamide and/or (C-2) a polyol ester, the base oil (A) including (A-1) a synthetic oil having a kinematic viscosity at 100° C. of 1.0 to 10.0 mm/s. 1: A lubricating oil composition for a transmission , which is prepared by blending:(A) a base oil,(B) a viscosity index improver having a mass average molecular weight of 10,000 to 50,000, and(C-1) a polyamide, (C-2) a polyol ester, or both,{'sup': '2', 'wherein the base oil (A) comprises (A-1) a synthetic oil having a kinematic viscosity at 100° C. of 1.0 to 10.0 mm/s.'}2: The lubricating oil composition for a transmission according to claim 1 , wherein the component (A-1) is a poly-α-olefin claim 1 , a hydrogenated product of a poly-α-olefin claim 1 , or both.3: The lubricating oil composition for a transmission according to claim 1 , wherein a blending amount of the component (A-1) is from 1.0 to 10.0% by mass on the basis of a total amount of the composition.4: The lubricating oil composition for a transmission according to claim 1 , wherein the component (B) is a poly(meth)acrylate.5: The lubricating oil composition for a transmission according to claim 1 , wherein a blending amount of the component (B) is from 1.0 to 20.0% by mass on the basis of a total amount of the composition.6: The lubricating oil composition for a transmission according to claim 1 , wherein the composition comprises the component (C-1) which is a reaction product between an amine compound and a carboxylic acid compound.7: The lubricating oil composition for a transmission according to claim 1 , wherein the composition comprises the component (C-2) which is a reaction product between a ...

MECHANOCHEMICAL RESISTANT INTRAMOLECULAR CROSSLINKED POLYMERS AND USES THEREOF

This invention is directed to intramolecular crosslinked polymer chains, commonly known also as single-chain polymer nanoparticles (SCPNs), with high resistance to mechanochemical bond scission and to uses thereof in solution. 1. A lubricating composition comprising an intramolecular crosslinked polymer , wherein said intramolecular crosslinked polymer comprises between 0.1 mol % and 30 mol % of crosslinkers.2. The composition of claim 1 , wherein said intramolecular crosslinked polymer is a viscosity modifier or a pour point depressant.3. The composition of claim 1 , wherein the concentration of said intramolecular cross linked polymer in said lubricant is between 0.001 wt % and 30 wt %.4. The composition of claim 1 , wherein said intramolecular crosslinked polymer comprises a single chain of a polymer or copolymer and a cross-linker claim 1 , wherein the cross linker links between two different monomers of said single chain polymer or copolymer.5. The composition of claim 4 , wherein said single chain polymer or copolymer comprises poly(aminoethyl methacrylate) claim 4 , poly(2-acetoxy)ethyl methacrylate (PAEMA) claim 4 , polystyrene claim 4 , polyacrylic acid (PAA) claim 4 , polyalanine claim 4 , polyester claim 4 , polycarbonate claim 4 , polyurea claim 4 , polyurethane claim 4 , vinyl polymers claim 4 , polyalkyl claim 4 , polyalkyl acrylate claim 4 , polybutadiene claim 4 , polyamide claim 4 , PEG claim 4 , polypropylene glycol claim 4 , polyacrylamide claim 4 , polyacrylonitrile (PAN) claim 4 , poly(2-cinnamoylethyl methacrylate) (PCMA) claim 4 , polyalkyl methacrylates claim 4 , polyisobutene claim 4 , polyisoprene claim 4 , polychloroprene claim 4 , polystyrene-coisoprene claim 4 , polymethyl methacrylate (PMMA) claim 4 , polylauryl methacrylate claim 4 , polystearyl methacrylate (PSMA) claim 4 , poly(vinyl chloride) (PVC) claim 4 , polyethylene claim 4 , polypropylene claim 4 , polytetrafluoroethylene (PTFE) claim 4 , polyvinyl cyclohexane claim 4 , poly( ...

SRT MATERIAL, COMPOSITE AND METHOD FOR PRODUCING THE SAME

Using an organic compound having a bottle brush structure, a material having softness and resilience and having excellent low-friction performance (SRT material) can be provided. Preferably, the SRT material contains a reinforcing filler, and may contain a lubricating liquid to be gelled. 1. An SRT material comprising an organic compound having a bottle brush structure.2. The SRT material according to claim 1 , containing claim 1 , as a second component claim 1 , any one or more of fibrous materials claim 1 , nonporous inorganic materials and substances having a three-dimensional polymer network structure.3. The SRT material according to claim 2 , satisfying at least one of the following (1) and (2):(1) the organic compounds having a bottle brush structure bond to each other via a covalent bond, an ionic bond, a hydrogen bond, a hydrophilic-lipophilic interaction or a phase separation structure,(2) the organic compound having a bottle brush structure and the second component bond to each other via a covalent bond, an ionic bond, a hydrogen bond, a hydrophilic-lipophilic interaction or a phase separation structure.4. The SRT material according to claim 1 , wherein the effective surface occupancy of the bottle brush structure is 1% or more.5. The SRT material according to claim 1 , containing the organic compound having a bottle brush structure in an amount of 10% by weight or more.6. The SRT material according to claim 1 , containing a lubricating liquid.7. The SRT material according to claim 1 , wherein the indentation is 100 nm or more and the compressive elasticity modulus is 1 MPa or more.8. The SRT material according to claim 1 , wherein the frictional coefficient (μ) is 0.1 or less.9. The SRT material according to claim 1 , which is in the form of a sheet.10. The SRT material according to claim 1 , which is for sliding mechanisms.11. A composite of an organic compound having a bottle brush structure and a reinforcing filler.12. The composite according to claim ...

Entry sheet for drilling use

The present invention relates to an entry sheet for drilling use, which exhibits excellent hole position accuracy even when transported at ambient temperature for a long time and/or stored under a thermal environment having a higher temperature than in Japan, more specifically to an entry sheet for drilling use for a laminated board or a multi-layered board comprising a metallic support foil and a layer of water-soluble resin composition formed on at least one surface of the metallic support foil, wherein the water-soluble resin composition comprises a water-soluble resin, a water-soluble lubricant and a linear unsaturated fatty acid salt, the layer of water-soluble resin composition is formed by cooling from a cooling start temperature of 120° C. to 160° C. to a cooling end temperature of 25° C. to 40° C. within 60 seconds at a cooling rate of not less than 1.5° C./sec, the water-soluble resin composition has a degree of crystallinity of not less than 1.2, the layer of water-soluble resin composition has a standard deviation σ of surface hardness of not more than 2, and a surface hardness of not less than 8.5 to not more than 25 N/mm 2 .

ENGINE OILS WITH LOW TEMPERATURE PUMPABILITY

A lubricating composition including a polymer blend of a modified styrene-maleic anhydride copolymer and poly(meth)acrylate copolymer effective to maintain a pumpable fluid at low temperatures. 1. A low-temperature stable lubricating composition exhibiting pumpability comprising:a base oil of lubricating viscosity;a polymeric additive including a blend of a modified styrene-maleic anhydride copolymer and a poly(meth)acrylate copolymer effective to maintain a pumpable fluid.2. The low-temperature stable lubricating composition of claim 1 , wherein the lubricating composition further includes one or more of a succinimide dispersant claim 1 , a borated succinimide dispersant claim 1 , an overbased calcium sulfonate claim 1 , an overbased magnesium sulfonate claim 1 , a zinc dialkyldithiophosphates claim 1 , an alkylated diphenyl amine antioxidant claim 1 , an antifoamant claim 1 , or combinations thereof.3. The low-temperature stable lubricating composition of claim 1 , wherein the modified styrene-maleic anhydride copolymer is an esterified styrene-maleic anhydride copolymer.4. The low temperature stable lubricating composition of claim 3 , wherein the esterified styrene-maleic anhydride copolymer is esterified with a long chain alcohol having an alkyl chain length of 10 to 22 carbons.5. The low temperature stable lubricating composition of claim 4 , wherein the esterified styrene-maleic anhydride copolymer has a number average molecular weight of about 10 claim 4 ,000 to about 100 claim 4 ,000.6. The low-temperature stable lubricating composition of claim 1 , wherein the poly(meth)acrylate copolymer includes reactants selected from C1 to C24 linear or branched alkyl (meth)acrylate reactants.7. The low-temperature stable lubricating composition of claim 6 , wherein a number average molecular weight of the poly(meth)acrylate copolymer is about 20 claim 6 ,000 or more.8. The low-temperature stable lubricating composition of claim 1 , wherein the lubricating composition ...

Lubricant Compositions Including Alpha-Olefin Copolymers

A lubricant composition may include a copolymer having constitutional units formed from monomers including an alpha-olefin and an α-ester-alk-ω-ene molecule, where the composition has a kinematic viscosity at 100° C. of at most 20 centistokes, or of at least 40 centistokes. A lubricant composition may include a copolymer having constitutional units formed from monomers including an alpha-olefin, an α-ester-alk-ω-ene molecule and an α-(carboxylic acid)-alk-ω-ene molecule, where the composition has a viscosity that varies as the molar ratio of the α-ester-alk-ω-ene molecule α-(carboxylic acid)-alk-ω-ene molecule in the monomers varies.

Lubricating compositions having improved shear stability

A lubricating composition with improved shear stability having a kinematic viscosity (Kv 100 ) from 5 to 32.5 cSt at 100° C., and a viscosity index from 140 to 200. The lubricating composition includes: a bi-modal blend lubricating oil including from 20 to 99 weight percent of a low viscosity basestock having a Kv 100 from 2 to 8 cSt at 100° C., and from 1 to 20 weight percent of a high viscosity basestock having a Kv 100 from 40 to 600 cSt at 100° C.; a viscosity modifier including a copolymer having units derived from monomers of (i) an α-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof esterified with an alcohol; and an alkylated aromatic co-base stock in an amount from 1 to 8 weight percent and having a Kv 100 from 3 to 15 cSt at 100° C.

POLYMER FOR LUBRICANT COMPOSITIONS AND METHOD OF FORMING THE SAME

A polymer comprises a polymeric backbone, at least one piperidine ester moiety extending from the polymeric backbone, and generally at least one Cto Cester moiety extending from the polymeric backbone. The polymer is useful for adjusting the total base number and viscosity index of a lubricant composition. The lubricant composition generally comprises a base oil in addition to the polymer. A method of forming the polymer comprises the steps of providing a first component and providing a second component. The first component comprises at least one of A1) a piperidine methacrylate, or A2) a methacrylate. The second component comprises at least one of B) a Cto Cmethacrylate. Optionally, the method further comprises the step of providing a third component, which comprises at least one of C) a piperidine-ol. The method further comprises at least one reaction step involving the aforementioned components to form the polymer. 120-. (canceled)21. A method of forming a polymer for adjusting the total base number (TBN) and viscosity index (VI) of a lubricant composition , said method comprising the steps of: A1) a piperidine methacrylate, or', 'A2) a methacrylate different from the piperidine methacrylate A1);, 'providing a first component comprising at least one of'} {'sub': 8', '22, 'B) a Cto Cmethacrylate;'}, 'providing a second component different from the first component and comprising'} 'C) a piperidine-ol; and', 'optionally, providing a third component comprising'}i) reacting the piperidine methacrylate A1) with the second component B) to form the polymer, wherein A1) and B) are reacted in a molar ratio (A1:B) of from about 15:85 to 25:75; and/orii) reacting the methacrylate A2) with the second component B) to form a reaction intermediate and reacting the reaction intermediate with the third component to form the polymer.22. The method as set forth in claim 21 , wherein the first component comprises the piperidine methacrylate A1) and wherein the piperidine methacrylate ...

Non-newtonian engine oil with superior engine wear protection and fuel economy

Provided is a non-Newtonian engine oil lubricant composition with improved fuel efficiency and engine wear protection. The lubricant composition includes a major amount of a base oil including a Group II base stock and an optional Group V base stock, from 0.1 to 9.0 wt. % of at least one viscosity modifier and from 0.1 to 1.2 wt. % of at least one friction modifier. The non-Newtonian engine oil lubricant composition has a kinematic viscosity at 100 deg. C. of less than or equal to 10 cSt and an HTHS (ASTM D4683) of less than or equal to 2.2 cP at 150° C. Also provided are methods of using the lubricant composition in internal combustion engines and methods of making the lubricant composition.

LUBRICATING OIL COMPOSITION FOR GEAR OIL

Disclosed is a lubricating oil composition for gear oil, comprising a lubricating base oil having a kinematic viscosity at 40° C. of 140 to 350 mm/s, a copolymer of an α-olefin and an ester monomer having a polymerizable unsaturated bond, a performance additive containing phosphorus and sulfur, and a poly(meth)acrylate pour-point depressant. 1. A lubricating oil composition for gear oil , comprising:{'sup': '2', 'a lubricating base oil having a kinematic viscosity at 40° C. of 140 to 350 mm/s;'}a copolymer of an α-olefin and an ester monomer having a polymerizable unsaturated bond;a performance additive comprising phosphorus and sulfur; anda poly(meth)acrylate pour-point depressant.2. The lubricating oil composition for gear oil according to claim 1 , wherein the lubricating base oil comprises a first lubricating base oil component having a kinematic viscosity at 40° C. of 200 to 600 mm/s and a sulfur content of 0.3 to 0.9 mass % claim 1 , and a second lubricating base oil component having a kinematic viscosity at 40° C. of less than 200 mm/s; andthe content of the first lubricating base oil component is 30 to 80 mass %, and the content of the second lubricating base oil component is 70 to 20 mass %, based on the total amount of the base oil.3. The lubricating oil composition for gear oil according to claim 1 , wherein the content of the copolymer is 0.5 mass % or more based on the total amount of the composition.4. The lubricating oil composition for gear oil according to claim 1 , wherein the content of the performance additive satisfies requirements represented by the following formulas (1) and (2):{'br': None, 'i': 'C', 'sub': 'P', '≥0.05\u2003\u2003(1)'}{'br': None, 'i': C', '/C, 'sub': S', 'P, '7≤()≤20\u2003\u2003(2)'}{'sub': P', 'S', 'P', 'S, 'wherein Crepresents the content of phosphorus contained in the performance additive, Crepresents the content of sulfur contained in the performance additive, and Cand Ceach represent an amount (mass %) in terms of ...

A MIDDLE-PRESSURE POLYMERIZATION PROCESS FOR LIQUID ETHYLENE COPOLYMERS

The present invention relates to a middle-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form 20 to 60 wt % of ethylene; and at least 20 wt % of an acrylate, which is selected from C-Calkyl (meth)acrylate, where a monomer mix comprising the ethylene and the acrylate is polymerized at a pressure of 50 to 400 bar and in the presence of at least 2 wt % of a chain transfer agent. The invention further relates to a liquid ethylene copolymer obtainable by the polymerization process; and to a lubricant comprising the liquid ethylene copolymer obtainable by the polymerization process; and to a method for reducing friction between moving surfaces comprising the step of contacting the surfaces with the lubricant or with the ethylene copolymer. 116.-. (canceled)17. A middle-pressure polymerization process for the preparation of a liquid ethylene copolymer which comprises in polymerized form20 to 60 wt % of ethylene; and{'sub': 1', '22, 'at least 20 wt % of an acrylate, which is selected from C-Calkyl (meth)acrylate, where a monomer mix comprising the ethylene and the acrylate is polymerized at a pressure of 50 to 400 bar and in the presence of at least 2 wt % of a chain transfer agent.'}18. The polymerization process according to claim 17 , where the chain transfer agents are saturated or unsaturated hydrocarbons claim 17 , aliphatic ketones claim 17 , aliphatic aldehydes claim 17 , or hydrogen claim 17 , or mixtures thereof.19. The polymerization process according to claim 17 , where the monomer feed is polymerized in the presence of 4 to 18 wt % of the chain transfer agent.20. The polymerization process according to claim 17 , where the polymerization process is a fed-batch process in which a reactor is partly filled with the ethylene and a solvent claim 17 , followed by feeding of the acrylate claim 17 , the chain transfer agent claim 17 , and an initiator.21. The polymerization process according to claim 17 ...

Lubricating oil composition

Disclosed is a lubricating oil composition. The lubricating oil composition contains a lubricating base oil including mineral base oil, 4 to 15 mass % of an ester compound of a monovalent or polyvalent aliphatic carboxylic acid and a monovalent or polyvalent aliphatic alcohol, 400 to 1200 mass ppm of zinc dialkyl dithiophosphate in terms of a phosphorus element, 500 to 3000 mass ppm of a calcium-based detergent in terms of a calcium element, and 50 to 1000 mass ppm of a boron-modified succinimide-based dispersant in terms of a boron element, on the basis of the total amount of the lubricating oil composition.

DISPERSANT VISCOSITY MODIFIERS WITH AMINE FUNCTIONALITY

A lubricating composition includes an oil of lubricating viscosity and an oil-soluble dispersant viscosity modifier. The dispersant viscosity modifier includes an olefin-based polymer backbone and at least one pendent group derived from a functionalized aliphatic amine. Each pendent group is independently attached to the olefin-based polymer backbone. The pendent group is non-ionic, non-basic, and non-acidic and includes a functional group which includes at least one heteroatom other than nitrogen. 27-. (canceled)8. The lubricating composition of claim 1 , wherein the functionalized aliphatic amine is selected from the group consisting of ethanolamine claim 1 , 3-aminopropan-1-ol claim 1 , 4-aminobutan-1-ol claim 1 , 5-aminopentan-1-ol claim 1 , 6-aminohexan-1-ol claim 1 , 7-aminoheptan-1-ol claim 1 , 8-aminooctan-1-ol claim 1 , 2-(2-aminoethylamino)ethanol claim 1 , 3-amino-2 claim 1 ,2-dimethylpropan-1-ol claim 1 , 2-(2-aminoethoxy)ethanol claim 1 , N-(2-hydroxyethyl)-1 claim 1 ,3-propanediamine claim 1 , and mixtures thereof.915-. (canceled)16. The lubricating composition of claim 1 , wherein the functional group is spaced from a nitrogen derived from the functionalized aliphatic amine by a C-Chydrocarbyl group.17. The lubricating composition of claim 1 , wherein the olefin-based polymer backbone comprises units derived from (i) an α-olefin monomer and (ii) an ethylenically unsaturated carboxylic acid monomer or derivative thereof.18. The lubricating composition of claim 17 , wherein the ethylenically unsaturated carboxylic acid monomer is selected from the group consisting of maleic anhydride claim 17 , maleic anhydrides claim 17 , chlormaleic anhydride claim 17 , itaconic anhydride claim 17 , and corresponding dicarboxylic acids and esters thereof claim 17 , alkyl-substituted derivatives thereof claim 17 , and mixtures thereof.19. (canceled)20. (canceled)21. The lubricating composition of claim 1 , wherein a ratio by weight of the pendent groups to the polymer ...

LUBRICANT OIL COMPOSITION AND INTERNAL-COMBUSTION-ENGINE FRICTION REDUCTION METHOD

A lubricating oil composition which exhibits an excellent friction-reducing effect and excellent fuel consumption reducing properties is provided. 2. The lubricating oil composition according to claim 1 , comprising claim 1 , as the ester-based ashless friction modifier (C1) claim 1 , an ester compound having one or more hydroxyl groups in a molecule thereof.3. The lubricating oil composition according to claim 2 , wherein the ester compound having one or more hydroxyl groups in a molecule thereof is glycerin monooleate.4. The lubricating oil composition according to claim 1 , comprising the ester-based ashless friction modifier (C1) and the amine-based ashless friction modifier (C2) claim 1 , as the ashless friction modifier (C).5. The lubricating oil composition according to claim 4 , wherein a mass ratio between a content of the amine-based ashless friction modifier (C2) and a content of the ester-based ashless friction modifier (C1) [the content of the amine-based ashless friction modifier (C2)/the content of the ester-based ashless friction modifier (C1)] is less than 1.00.6. The lubricating oil composition according to claim 1 , further comprising a boratad succinimide (D).7. The lubricating oil composition according to claim 6 , wherein a content of the boratad succinimide (D) as converted into boron atoms is 0.050 mass % or less based on the total amount of the lubricating oil composition.8. The lubricating oil composition according to claim 6 , comprising the ester-based ashless friction modifier (C1) and the amine-based ashless friction modifier (C2) claim 6 , as the ashless friction modifier (C) claim 6 ,wherein a mass ratio of a total content of the ester-based ashless friction modifier (C1) and the amine-based ashless friction modifier (C2) to a content of the boratad succinimide (D) as converted into boron atoms [the content of the boratad succinimide (D) as converted into boron atoms/(the content of the ester-based ashless friction modifier (C1)+the ...

LOW VISCOSITY LUBRICATING OIL COMPOSITION

Provided is an internal combustion engine lubricating oil composition having a major amount of an oil of lubricating viscosity; a combination of alkaline earth metal alkylhydroxybenzoate detergents; at least about 50 to about 500 ppm of boron from a boron containing detergent; a molybdenum containing compound in an amount to provide the lubricating oil composition from about 100 to about 1500 ppm molybdenum; a ZnDTP compound; where the composition comprises magnesium in an amount from about 100 to about 800 ppm, and calcium in an amount from about 500 to about 2000 ppm. 1. An internal combustion engine lubricating oil composition comprising:a. a major amount of an oil of lubricating viscosity;b. an alkaline earth metal alkylhydroxybenzoate detergent having an alkyl group having an average carbon atom number in the range of from about 14 to about 18;c. an alkaline earth metal alkylhydroxybenzoate detergent having an alkyl group having an average carbon atom number in the range of from about 20 to about 28;d. at least about 50 to about 500 ppm of boron from a boron containing detergent which can be from b), c), another detergent, or a combination thereof;e. a molybdenum containing compound in an amount to provide the lubricating oil composition from about 100 to about 1500 ppm molybdenum;f. a ZnDTP compound; andwhere the composition comprises magnesium in an amount from about 100 to about 800 ppm, and calcium in an amount from about 500 to about 2000 ppm and where the mole ratio of b:c is from about 1:5 to about 5:1 based on the alkylhydroxybenzoate molecules and the lubricating oil composition has a phosphorus content of less than or equal to about 0.12 wt. %.2. The lubricating oil composition according to claim 1 , wherein the boron-containing detergent has from about 50 to about 500 ppm of boron claim 1 , based on the lubricating oil formulation.3. The lubricating oil composition of claim 1 , wherein the boron-containing detergent is a borated salicylate claim 1 , ...

Lubricating Composition Containing a Self-Assembling Polymethacrylate Block Copolymer and an Ethylene-a-Olefin Copolymer

The invention provides a lubricating composition comprising an oil of lubricating viscosity and synergistic mixture of a functionalized ethylene-α-olefin copolymer, a poly(meth)acrylate block polymer having a substantially oil soluble block and a substantially oil insoluble block. The invention also provides a method of lubricating a mechanical device using such a lubricating composition. 1. A lubricating composition comprising(a) an oil of lubricating viscosity;(b) an ethylene-α-olefin copolymer, wherein the ethylene-α-olefin copolymer is grafted with a polar moiety; and{'sub': 1', '2, '(c) a poly(meth)acrylate polymer wherein the poly(meth)acrylate polymer comprises a block or tapered block copolymer (P) comprising a first block (B) which is substantially insoluble in the base oil and a second block (B) which is substantially soluble in the base oil.'}2. The lubricating composition of claim 1 , wherein the poly(meth)acrylate polymer comprises a linear polymer having a weight-average molecular weight of 10 claim 1 ,000 Da to 100 claim 1 ,000 Da.3. The lubricating composition of claim 1 , wherein the first block (B) comprises at least 50 mol % Cto C(meth)acrylate derived units.4. The lubricating composition of claim 1 , wherein the first block (B) consists essentially of Cto C(meth)acrylate derived units5. The lubricating composition of claim 1 , wherein the first block (B) comprises at least 50 mol % of an aromatic functional (meth)acrylate derived unit.6. The lubricating composition of claim 1 , wherein the and the second block (B) comprises at least 50 mol % Cto C(meth)acrylate derived units.7. The lubricating composition of claim 1 , wherein the second block (B) consists essentially of Cto C(meth)acrylate derived units.81. The lubricating composition claim 1 , wherein the first block (B) comprises at least 50 mol % at least two of C claim 1 , C claim 1 , Cor C(meth)acrylate derived units and the second block (B) comprises at least 50 mol % of at least two of C ...