Abstract: A lubricating composition suited to use for lubricating a hydraulic system includes an oil of lubricating viscosity and a compound comprising a polyolefin-substituted bridged hydroxyaromatic compound or metal salt thereof, wherein the wherein the polyolefin is derived from a isobutylene having a number average molecular weight of 150 to 800.

Abstract: A lubricating composition suited to use for lubricating a hydraulic system includes an oil of lubricating viscosity and a compound comprising a polyolefin-substituted bridged hydroxyaromatic compound or metal salt thereof, wherein the wherein the polyolefin is derived from a isobutylene having a number average molecular weight of 150 to 800.

Abstract: The present invention relates to a lubricant and/or clean-out composition comprising: (a) a dispersant component comprising a succinimide dispersant and/or a quaternary ammonium salt dispersant; (b) a carrier fluid component; and (c) an optional corrosion inhibitor, as well as methods of cleaning out deposits in a lubricant system, such as a hydraulic system, using such compositions.

Abstract: The present invention relates to the use of an additive composition that contains the combination of two specific types of antioxidants with one or more of four specific types of dispersants in a Group II and/or Group III base oil-containing lubricating composition. The lubricating composition of the present invention provides improved cleanliness in steam and gas turbine systems. The invention further relates to the process to make the novel additive composition and its use in industrial fluids.

Abstract: The invention provides a lubricating composition comprising an oil of lubricating viscosity and an amine-functionalized additive, wherein the amine-functionalized additive is derived from an amine having at least 3 aromatic groups, at least one —NH2 functional group, and at least 2 secondary or tertiary amino groups. The invention further provides for the additive to have improved thermal and oxidative stability modifying properties. The lubricating composition may include circulating oils, turbine oils, hydraulic fluids, transformer oils and greases as well as others that require good oxidation stability and good rust inhibition properties.

Abstract: The present invention relates to a lubricating composition containing a dispersant, a corrosion inhibitor and an antioxidant. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Abstract: A lubricant composition comprising an oil of lubricating viscosity and an oil-soluble branched-chain hydrocarbyl-substituted arenesulfonic acid salt, wherein the arenesulfonic moiety has at least one hydrocarbyl substituent which is a highly branched group as defined by having a Chi(0)/Shadow XY ratio greater than about 0.180, exhibits good dynamic frictional performance.

Abstract: 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.

Abstract: The present invention relates to the use of an additive composition that contains the combination of two specific types of antioxidants with one or more of four specific types of dispersants in a Group II and/or Group III base oil-containing lubricating composition. The lubricating composition of the present invention provides improved cleanliness in steam and gas turbine systems. The invention further relates to the process to make the novel additive composition and its use in industrial fluids.

Abstract: The invention provides a lubricating composition comprising an oil of lubricating viscosity and an amine-functionalised additive, wherein the amine-functionalised additive is derived from an amine having at least 3 aromatic groups, at least one —NH2 functional group, and at least 2 secondary or tertiary amino groups. The invention further provides for the additive to have improved thermal and oxidative stability modifying properties. The lubricating composition may include circulating oils, turbine oils, hydraulic fluids, transformer oils and greases as well as others that require good oxidation stability and good rust inhibition properties.

Abstract: The present invention relates a lubricant and/or clean-out composition comprising: (a) a dispersant component comprising a succinimide dispersant and/or a quaternary ammonium salt dispersant; (b) a carrier fluid component; and (c) an optional corrosion inhibitor, as well as methods of cleaning out deposits in a lubricant system, such as a hydraulic system, using such compositions.

Abstract: The present invention relates to a lubricating composition containing a dispersant, a corrosion inhibitor and an antioxidant. The invention further provides a method for lubricating a mechanical device with the lubricating composition.

Abstract: A lubricant composition comprising an oil of lubricating viscosity and an oil-soluble branched-chain hydrocarbyl-substituted arenesulfonic acid salt, wherein the arenesulfonic moiety has at least one hydrocarbyl substituent which is a highly branched group as defined by having a Chi(0)/Shadow XY ratio greater than about 0.180, exhibits good dynamic frictional performance.

Abstract: The present invention relates to a lubricating oil composition containing: (1) an antiwear package comprising: (a) a hydrocarbyl phosphate and amine salt thereof; and (b) an alkylene coupled adduct of a hydrocarbyl substituted dithiophosphoric acid and a &agr;,&bgr;-unsaturated carbonyl containing compound; (2) an antioxidant package comprising: (a) a hydrocarbyl diphenylamine; and (b) a sterically hindered phenol; (3) a metal deactivator; and (4) an oil of lubricating viscosity. The invention further relates to the process to make the lubricating oil composition and its use in industrial fluids especially hydraulic fluids.

Abstract: A lubricating oil composition containing in oxidation inhibitor package, a rust inhibitor and metal deactivator is used in industrial fluids. The oxidation package contains alkylated diphenylamines, substituted hydrocarbyl monosulphides and optionally sterically hindered phenols. The rust inhibitor contains at least 1 of alkylated amine salts of alkylphosphoric acid, dialkyldithiophosphoric acid or hydrocarbyl aryl sulphonic acids. The metal deactivator is 5-methylbenzotriazole.

Abstract: Lubricants containing a compound of the structureR.sub.1 R.sub.2 N--C(X')S--(CR.sub.3 R.sub.4).sub.a Ywhere X' is an oxygen or sulfur atom and Y is, e.g., an activating group; also containing a phosphorus acid or ester of the formula (R.sub.6 X)(R.sub.7 X)P(X).sub.n X.sub.m R.sub.8 or an amine salt thereof; and also a surfactant, exhibit good antiwear properties. They are particularly useful in pressure transmitting applications such as tractor hydraulic fluids.

Abstract: A liquid composition is described which comprises(A) a major amount of at least one fluorine containing hydrocarbon containing one or two carbon atoms; and(B) a minor amount of at least one soluble organic lubricant comprising at least one organic thiocarbamate characterized by the formulaeR.sub.1 R.sub.2 NC(X)SC(R.sub.3 R.sub.4) (C(H) (R.sub.5)).sub.a Z , or tm (I)(R.sub.1 R.sub.2 NC(X)SC(R.sub.3 R.sub.4) (C(H) (R.sub.5)).sub.a C(X)A).sub.2 Z' (II)wherein R.sub.1 and R.sub.2 are each independently lower alkyl, aryl, aralkyl or together form a heterocyclic group in which the ring is completed trough the nitrogen;X is O or S;A is O, S or NR;R is H or a lower alkyl group;R.sub.3, R.sub.4 and R.sub.5 are each independently H, lower alkyl or aryl groups;a is 0 or 1;Z is --CN, --S(O)R.sub.6, --S(O)OR.sub.6, --S(O).sub.2 R.sub.6, --S(O).sub.2 OR.sub.6, or --C(O)Y;R.sub.6 is --H, alkyl or aralkyl;Y is --H, --OH, --R.sub.7, --OR.sub.7, --OR.sub.8 OH, or --NR.sub.9 R.sub.10 ;R.sub.

Abstract: A liquid composition is described which comprises(A) a major amount of at least one fluorine containing hydrocarbon containing one or two carbon atoms; and(B) a minor amount of at least one soluble organic lubricant comprising at least one organic thiocarbamate characterized by the formulaeR.sub.1 R.sub.2 NC(X)SC(R.sub.3 R.sub.4)[C(H)(R.sub.5)].sub.a Z, or (I)[R.sub.1 R.sub.2 NC(X)SC(R.sub.3 R.sub.4)[C(H)(R.sub.5)].sub.a C(X)A].sub.2 Z' (II)wherein R.sub.1 and R.sub.2 are each independently lower alkyl, aryl, aralkyl or together form a heterocyclic group in which the ring is completed through the nitrogen;X is O or S;A is O, S or NR;R is H or a lower alkyl group;R.sub.3, R.sub.4 and R.sub.5 are each independently H, lower alkyl or aryl groups;a is 0 or 1;Z is --CN, --S(O)R.sub.6, --S(O)OR.sub.6, --S(O).sub.2 R.sub.6, --S(O).sub.2 OR.sub.6, or --C(O)Y;R.sub.6 is H, alkyl or aralkyl;Y is H, --OH, --R.sub.7, --OR.sub.7, --OR.sub.8 OH, or --NR.sub.9 R.sub.10 ;R.sub.7 is an alkyl, aryl or aralkyl group;R.sub.

Abstract: A phosphorus free or a low phosphorus containing lubricant composition is provided by formulating the composition with an additive of the formula ##STR1## wherein R.sub.1 and R.sub.2 are independently alkyl of 1 to about 7 carbons, aryl, aralkyl or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; X is O or S; a is 1 or 2; R.sub.3 and R.sub.4 are independently H, alkyl or aryl; and Z is ##STR2## wherein R.sub.5 is hydrogen, alkyl, or aralkyl, and ##STR3## wherein Y is H, OH, R.sub.6 where R.sub.6 is alkyl, aryl or aralkyl, OR.sub.6, OR.sub.7 --OH, where R.sub.7 is alkylene of 1 to about 7 carbon atoms, and NR.sub.8 R.sub.9 where R.sub.8 and R.sub.9 are independently hydrogen, alkyl, cycloaliphatic, heteroalicyclic or together form an alicyclic or heteroalicyclic radical in which the ring is completed through the nitrogen; with the proviso that when a is 1, Y is not OR.sub.6.