The Lubrizol Corporation

Kent B Grover

Craig D Tipton

Charles P Bryant

James N Vinci

S Q Rizvi

A composition is disclosed which comprises: (A) a compound represented by the formula ##STR1## wherein Ar.sup.1 and Ar.sup.2 are independently mononuclear or polynuclear, substituted or unsubstituted aromatic groups; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or hydrocarbyl groups of from 1 to about 25 carbon atoms; X is at least one divalent sulfur atom, sulfone group, sulfixide group, or a mixture thereof; and n is a number ranging from 1 to about 5; and (B) a compound represented by the formula ##STR2## wherein Ar.sup.3 and Ar.sup.4 are independently mononuclear or polynuclear, substituted or unsubstituted aromatic groups; and R.sup.5 is hydrogen, halogen, OH, NH.sub.2, SH, NO.sub.2 or a hydrocarbyl group of from 1 to about 50 carbon atoms. Concentrates, lubricants, functional fluids, fuels, aqueous compositions and emulsions comprising the foregoing compositions are also disclosed.

Antioxidant compositions

Polymeric compositions are described which comprise a mixture of

Polymeric compositions, oil compositions containing said polymeric

Disclosed is a method for cooling an internal combustion engine which comprises circulating within the cooling system of said engine an oleaginous coolant fluid composition which comprises

Method for cooling internal combustion engine with an oleaginous coolant

A composition comprising (A) at least one metal salt of a mixture of acids comprising (A)(I) at least one acid of Formula I ##STR1## wherein R' and R.sup.2 are the same or different and each of R' and R.sup.2 is a hydrocarbon-based group, and (A)(II) at least one aliphatic or alicyclic carboxylic acid containing from about 2 to about 40 carbon atoms, (B) at least one sulfurized Group II metal phenate, and (C) a stabilizing amount of at least one triazole selected from the group consisting of benzotriazole and alkyl substituted benzotriazoles containing up to 15 carbon atoms in the alkyl group.

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Chardon, OH, United States of America

Kent B Grover