Abstract: A seal swell agent for a lubricating fluid is described. The invention relates to a seal swell agent for use in lubricating oils, such as engine oils, turbine oils, automatic and manual transmission, or gear, fluids, drivetrain and gear oils and hydraulic fluids. The seal swell agent comprises a diester of sorbitol or a derivative thereof and at least one carboxylic acid. The invention extends to the use of a diester of sorbitol or a derivative thereof and at least one carboxylic acid as a seal swell agent, and a method of maintaining seal integrity.

Abstract: A grease composition includes a base oil, a thickener and at least one kind of an antioxidant selected from an amine-based antioxidant and a phenol-based antioxidant expressed by the following respective general formulas (1) and 2: The base oil contains a poly-?-olefin and a mineral oil. A mass ratio of poly-?-olefin/mineral oil is 1.25 to 9.

Abstract: A composition of the formulae MZAORSnR1F1mOAZ1M1, wherein O and S have their normal meaning of oxygen and sulfur, n is at least 2 and not more than 8, F1 is of the formula —OAORSnR1—, m is at least 1, Z and Z1 are the same or different and are oxy or amino, M and M1 are the same or different and are hydrogen or an organic substituent, R and R1 are the same or different and are organic divalent radicals, each having from 2 to 20 carbon atoms, and A is the residue of a dicarboxylic acid of from 2 to 40 carbon atoms.

Abstract: Described are multi-ring antioxidant products comprising at least one sulfur-bridged aromatic hydrocarbon compound substituted on at least one of its aromatic rings by at least one sterically hindered 3,5-dihydrocarbyl-4-hydroxybenzyl moiety. Such products have the formula: R—Sn—R[—S—R]m wherein each R is, independently, an aromatic hydrocarbon group having 6-12 carbon atoms, wherein m is 0-20, wherein n is 1-6 when m is 0, and when n is 1, m is 1-20; and wherein at least one of R, R1, and R2 is substituted by at least one such sterically hindered moiety. The preparation of such products and their use as antioxidants in compositions normally susceptible to oxidative degradation in oxygen or air, e.g., liquid fuel and lubricants, are also described.

Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.

Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.

Abstract: Novel sulfur-containing compositions comprise a polyether polysulfide or an ether polysulfide. The polyether polysulfide may be based upon an alkoxylate (an alcohol or glycol-initiated compound) that is a copolymer of at least two of ethylene oxide, propylene oxide and butylene oxide. The polyether polysulfide may alternatively be based upon a homopolymer of ethylene oxide, propylene oxide or butylene oxide. The ether polysulfide may be based upon a methoxy-capped polyglycol or an alkyl ether of 1,3-dichloro-2-propanol.

Abstract: A lubricant composition is disclosed that comprises lubricating oil and a mixture of at least two antioxidants, the first antioxidant being a substituted diphenylamine and/or a heterocyclic amine and the second antioxidant being a substituted phenol. Also disclosed is a method of increasing the oxidation stability of a lubricating oil comprising adding thereto at least two antioxidants, the first antioxidant being a substituted diphenylamine and/or a heterocyclic amine and the second antioxidant being a substituted phenol.

Abstract: A gear oil additive composition and gear oil composition comprising a organic polysulfide having at least 30 wt % of a dialkyl polysulfide compound or mixture of dialkyl polysulfide compounds, a thiadiazole; and at least one ashless phosphorus-containing wear inhibitor compound is disclosed as having low yellow corrosion in axles and transmissions.

Abstract: This invention relates to a low cost, wear inhibitor containing novel dithiocarbamates with alkylthio and hydroxy substituents that can be used to formulate low phosphorus lubricants. In addition to wear inhibition, the dithiocarbamate compositions of the invention provide substantial oxidation protection to lubricating oils and are not detrimental to fuel economy.

Abstract: A lubricant compound for use for both boundary and elastohydrodynamic lubrication utilize a hydrocarbon boundary lubricant linked to one or more fluorocarbon elastohydrodynamic lubricants and may be employed alone or as an additive. The lubricant compound lubricates surfaces on which it is disposed over a range of conditions. The boundary lubricant and the elastohydrodynamic lubricant are substituted such that they react with and/or provide desirable lubrication properties for particular surfaces.

Abstract: An oil composition for cutting and grinding by minimal quantity lubrication system and for sliding surface according to the present invention comprises an ester and a sulfur compound and/or a phosphorus compound.

Abstract: A lubricating grease composed of a base oil combination comprising 10 to 35% of one or more poly &agr;-olefins, 3 to 15% of one or more synthetic organic esters, 20 to 30% of one or more naphthenic oils, the remainder of the combination being one or more paraffinic oils, the percentages being by weight of the total base oil combination and the ratio of the weight of the ester(s) in the combination to the weight of the poly &agr;-olefin(s) therein being not greater than 1:3; between 2 and 15 % by weight of the total grease of a lithium soap thickener, between 1 and 5% by weight of the total grease of a molybdenum dithiophospbate; between 1 and 5% by weight of the total grease of a zinc dialkyldithiophosphate; between 1 and 5% by weight of the total grease of a sulphur-free friction modifier, and some or all of the normal grease additives such as anti-oxidants, corrosion inhibitors, extreme pressure additives and tackiness agents.

Abstract: This invention relates to a low cost, wear inhibitor containing novel dithiocarbamates with alkylthio and hydroxy substituents that can be used to formulate low phosphorus lubricants. In addition to wear inhibition, the dithiocarbamate compositions of the invention provide substantial oxidation protection to lubricating oils and are not detrimental to fuel economy.

Abstract: The invention relates to bisphenyl thiocompounds of formula (I), wherein X1 to X5 independently represent H, Cl, F, OH, SH, R, —OR and —SR, wherein R is an organic radical with 1 to 18 C atoms, which can be an alkyl or alkenyl radical that can also contain —O—, —S— instead of a one to four non-adjacent CH2 groups and that can be substituted once or multiple times by —OH, —SH or halogen, an unsubstituted phenyl, cyclohexyl or cyclohexylmethyl radical or substituted by one or up to three alkyl groups with a total of 1 to 9 C atoms in which a CH2 group may be replaced by —O—, provided that at least 3 of the radicals X1 to X5 are; Y1 to Y5 independently have the meaning cited for X1 to X5 and Z represents an &agr;, &ohgr;-alkylene group with 2 to 18 C atoms in which one to three CH2 groups may be substituted by —O— or —S— and 1,4-cyclohexandimethyl group or a simple bond.

Abstract: A grease composition is disclosed which contains a lubricating base oil, and: (A) 2 to 30 wt % of a urea thickener, (B) 0.1 to 20 wt % of a sulfur-containing extreme pressure agent selected from the group consisting of dihydrocarbyl polysulfide, sulfurized oils and fats and mixtures thereof, and (C) 0.05 to 10 wt % of a sulfonate selected from the group consisting of an over-based zinc sulfonate, an over-based magnesium sulfonate and mixtures thereof having total base number of 100 to 500 mgKOH/g, each based on a total amount of said composition.

Abstract: Compositions and methods have been discovered for inhibiting corrosion of metals, particularly iron alloys, in contact with fluids, either hydrocarbons, alcohols, or aqueous fluids, employing mercaptoalcohols. The mercaptoalcohols should have at least one water solubilizing hydroxyl group.

Abstract: A method of improving the efficiency of an air conditioning and refrigeration system, comprising introducing into the system a mixture of a carrier with an energy transferring polar compound comprising a sulfur component; a novel additive in a polar compound containing a sulfur component; and an air conditioning system utilizing a polar compound containing a sulfur component.

Abstract: An oxidation-corrosion additive for enhancing the stability of PFPAEs which has the formula: wherein Q is —Rf or —S—Rf, Rf is a perfluoroalkyl or perfluoroalkylether group having 1 to 30 carbon atoms, x and y are integers, each having a value of 0-5, wherein the sum of x and y is in the range of 1 to 10. In the formula above, Rf may be linear or branched. The additive can be a single component or a mixture of components varying in the number and relative positions of x and y. The additive can be used alone or with other suitable additives in PFPAE base fluids.

Abstract: Block copolyethers having general formula (I):RX--(CH.sub.2 --CHR.sub.1 --O--).sub.x --(--CH.sub.2 CHR.sub.2 --O--).sub.y --(--CH.sub.2 --CHR.sub.3 --O--).sub.z --R.sub.4wherein:R is selected from H, alkyl, alkylaryl;X is selected from O, S and N;R.sub.1, R.sub.2 and R.sub.3 are selected from H, CH.sub.3, and C.sub.2 -C.sub.10 alkyl radicals;R.sub.4 is selected from H, alkyl, acyl;x,y,z represent the number of ether units and are integers which have such values that the molecular weight of the compound having general formula (I) is between 600 and 4000, and in addition (x+z)/y is between 1.5 and 5.0; with the proviso that:a) either R.sub.1 and R.sub.3 are selected from H and CH.sub.3, in which case R.sub.2 is selected from C.sub.2 to C.sub.10 alkyl radicals,b) or R.sub.1 and R.sub.3 are selected from C.sub.2 -C.sub.10 alkyl radicals, in which case R.sub.2 is selected from H and CH.sub.3.

Abstract: Described are products suitable as lubricant and fuel additives which are obtainable by reacting a polyunsaturated polymer, for example polybutadiene, polyisoprene, ring-opening polymerised polycyclooctenamer or polynorbomene, with at least one enophilic compound of the groups of the dihydrocarbyidithiophosphoric acids, dihydrocarbylmonothiophosphoric acids, dihydrocarbylphosphoric acids or mercaptans.

Abstract: The present invention relates generally to substantially liquid, chlorine-free, sulfur-bridged phenols useful as antioxidants and more specifically to the preparation of a substantially liquid, chlorine-free, sulfur-bridged, hindered phenol compositions which are effective antioxidant(s) in lubricating oils without causing excessive copper corrosion. The invention also includes lubricating oils containing an antioxidant additive of the present invention, as well as a method of reducing oxidation in the lubricating oil used in a machine such as an internal combustion engine.

Abstract: An engine oil composition is composed of: (1) at least one oil selected from the group consisting of a mineral oil and a synthetic lubricant as a base oil; (2) a molybdenum dithiocarbamate in an amount of 50 to 2000 ppm by weight when calculated as molybdenum (Mo), relative to the total weight of the engine oil composition; (3) zinc dithiophosphate in an amount of 0.01 to 0.2 wt % when calculated as phosphorus (P), relative to the total amount of the engine oil composition; and (4) an ashless organic polysulfide compound in an amount of 0.01 to 0.4 wt % when calculated as sulfur (S), relative to the total amount of the engine oil composition.

Abstract: The present invention relates generally to substantially liquid, chlorine-free, sulfur-bridged phenols useful as antioxidants and more specifically to the preparation of a substantially liquid, chlorine-free, sulfur-bridged, hindered phenol compositions, using 1-propanol as the reaction solvent, which are effective antioxidant(s) in lubricating oils and liquid organic fuels without causing excessive copper corrosion and which exhibit improved elastomer seal compatibility. The invention also includes lubricating oils and liquid organic fuels containing an antioxidant additive of the present invention, as well as a method of reducing oxidation in the lubricating oil or liquid organic fuel used in a machine such as an internal combustion engine.

Abstract: The use of an effective amount of a compound as an additive improving the compatibility of a lubricating oil formulation having dispersants containing basic nitrogen atoms, with fluorocarbon elastomer seals. That compound has the formula: ##STR1## wherein R and R.sup.1 are independently alkoxycarbonyl, alkenyloxycarbonyl, aryloxycarbonyl, alkylcarbonyl, alkenylcarbonyl, arylcarbonyl, or arylalkyl, or together form a carbocycle, and R.sup.2 and R.sup.3 are independently sulfurized alkyl, alkoxycarbonylalkyl, arylalkyl, or borated hydroxyalkyl, with the proviso that R, R.sup.1, R.sup.2 and R.sup.3 together contain sufficient carbon atoms to render the compound oil soluble in an oil of lubricating viscosity.

Abstract: A lubricant including a compound of the formula: ##STR1## wherein 4, 5 or 6 of the substituents X.sub.1 to X.sub.6 can be --SR, --SO.sub.2 R or --SOR and the other substituents can be --H, --Cl, --F, --OH, --SH, --R, --OR, --COOR or --OOCR wherein R is independently, at each occurrence, unsubstituted or substituted alkyl, of 1 to 18 carbon atoms, said substitution consisting of fluorine substitution of hydrogen, --O-- substitution of --CH.sub.2 --, --S-- substitution of --CH.sub.2 -- and mixtures thereof, said --O-- and --S-- substitutions being selected so that --O-- atoms are not directly bonded to each other. The invention further includes a method of lubricating with the lubricant.

Abstract: An oil in water dispersion composition is disclosed that comprises a mixture of water and(A) an overbased non-Newtonian colloidal disperse system comprising(1) solid metal-containing colloidal particles predispersed 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, where the molecules of said organic compound have polar substituents and hydrophobic portions;(B) a water soluble associative thickener comprising a base-neutralized copolymer having copolymerized therein about 90 to about 99 mole percent of a carboxyl-containing, ethylenically unsaturated hydrocarbon and about 1 to about 10 mole percent of a nonionic surfactant acrylate having the formula: ##STR1## wherein R.sup.1 is hydrogen or methyl, R.sup.

Abstract: Oil soluble compounds having the formula: ##STR1## wherein R and R.sup.1 are independently cyano, alkoxycarbonyl, aryloxycarbonyl, alkenyloxycarbonyl, alkylcarbonyl, arylcarbonyl, alkenylcarbonyl, alkylsulfonyl, arylsulfonyl, alkenylsulfonyl, substituted aminocarbonyl, alkylphosphoryl, arylphosphoryl, alkenylphosphoryl, aryl, or heterocyclics, or together form a carbocycle or heterocycle, and R.sup.2 and R.sup.3 are independently alkyl, alkenyl, hydroxyalkyl, sulfurized alkyl, alkoxycarbonylalkyl, arylalkyl, or borated hydroxyalkyl, with the proviso that R, R.sup.1, R.sup.2 and R.sup.3 together contain sufficient carbon atoms to render the compound oil soluble in an oil of lubricating viscosity. The compound are useful as wear protectants or extreme pressure agents to enhance wear protection or extreme pressure properties in lubricating oils and greases.

Abstract: An aviation turbine oil of reduced deposit forming tendencies and improved anti-oxidancy is disclosed which comprises a major portion of a suitable aviation turbine oil base stock and a minor amount of a non-sulfur containing triazine derivative and a mercapto alkyl alcohol.

Abstract: A lubricating composition containing about 0.1-10 weight percent of a perfluoropolyether lubricant containing perfluoropolyether molecules having at least one hydrogen-containing end group per molecule, and about 99.9-90 weight percent of a liquid, perfluorinated, nonaromatic cyclic organic solvent or mixture of such solvents is provided.

Abstract: A polyether having the formulaRX[(C.sub.x H.sub.2x O).sub.n (C.sub.y H.sub.2y O).sub.p Z].sub.m(I)wherein:R is either an alkyl or alkyl phenyl group having from 7 to 30 carbon atoms,X is selected from O, S or N;x is an integer from 2 to 4;y is an integer from 6 to 30;Z is a hydrocarbyl group containing from 1 to 30 carbon atoms;m is 1 when X is O or S or m is 2 when X is N;n and p are such that the polyether contains between 1 and 40% by weight of (C.sub.y H.sub.2y O) units and between 40 and 80% by weight of (C.sub.x H.sub.2x O) units; and the molecular weight of the polyether is between 500 and 3,500. Lubricating oil compositions comprising such polyethers are disclosed. A method of preparing the polyethers is disclosed and comprises preparing a H-capped polyether, preparing an alkali-metal salt thereof and reacting said salt with an alkylating agent.

Abstract: The present invention relates to a composition containing a lubricant or hydraulic fluid and in an effective amount to improve extreme pressure and anti-wear properties of said lubricant or hydraulic fluid of at least one compound of the formula II ##STR1## R.sup.1, R.sup.2, and R.sup.3 together with the C atom to which they are bound are tert-C.sub.4 -C.sub.14 -alkyl. R.sup.4 is phenyl, --CH.sub.2 --CH.sub.2 --NH.sub.2, --CH.sub.2 CH.sub.2 OH, --CH.sub.2 CH(OH)--CH.sub.2 --OH, tert-C.sub.4 -C.sub.14 alkyl, --(CH.sub.2).sub.2 --S--CH(OH)--CH.sub.2 --S-(tert-C.sub.8 -C.sub.12 alkyl), --CH.sub.2 --COOH, --CH.sub.2 --COO--(i-C.sub.8 H.sub.17), --CH.sub.2 --CO--OH.H.sub.2 N-(tert-C.sub.10 -C.sub.16 -alkyl), --P(S)--[O--(i-C.sub.3 H.sub.7)].sub.2, --P(S)--[O--(i-C.sub.8 H.sub.17)].sub.2, .alpha.-naphthyl, benzothiazolyl, benzimidazolyl, thiazolyl, --CH.sub.2 --CH--(OH)--CH.sub.2 --S--R.sup.10 wherein R.sup.10 is tertiary C.sub.4 -C.sub.14 -alkyl, or R.sup.4 is radical ##STR2## R.sup.1, R.sup.2 and R.sup.

Abstract: Compositions of matter containing self condensation reaction products of alkylthio alkanols and dispersants which are found to have utility in lubricating/functional fluids.

Abstract: This invention relates to lubricants for polyethylene snow sliders which comprise fluorinated disulfides of the formula[R.sub.f (CH.sub.2).sub.m S].sub.2having a melting point of at least 25.degree. C. at most 60.degree. C., a fluorine content of at least 61% and at most 68% and wherein R.sub.f is independently a straight or branched perfluoroalkyl group.

Abstract: Disclosed is a lubricant oil composition comprising: (A) a fluorine-containing aromatic compound, and(B) an alkyl- or alkyl derivative-substituted aromatic compound having a kinetic viscosity of from 0.1 to 500 cSt as measured at 40 .degree. C., wherein:the compound (A) is represented by the formula:R(XR.sub.f).sub.n (A)wherein X represents an oxygen or a sulfur atom; n is an integer of from 1 to 4; R represents an n-valent, unsubstituted or substituted aromatic group having from 6 to 60 carbon atoms; and R.sub.f represents an unsubstituted or partially substituted fluorocarbon group having from 1 to 25 carbon atoms; andthe compound (B) comprises at least one substituted aromatic nucleus, wherein a substituent is an unsubstituted or substituted alkyl group having from 1 to 30 carbon atoms, or a derivative thereof. The lubricant oil composition having a kinetic viscosity of from 2 to 500 cSt as measured at 40.degree. C.

Abstract: A phosphorous- and sulfur-containing additive and its use to impart anti-wear properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture of products formed, for example, by simultaneously reacting (1) a beta-hydroxy thioether, such as thiobisethanol, (2) a phosphorous-containing reactant, such as triethyl phosphite and (3) optionally, a nucleophilic reactant capable of reacting with the ion ##STR1## to form thioether species. The resulting one or two phase reaction products are supplemented with inorganic phosphorous acids and/or anhydrides to increase the products' total acid number and correspondingly adjust the products' antiwear properties.