Compositions – Electrolytes for electrical devices
Patent
1991-06-27
1993-10-12
Howard, Jacqueline V.
Compositions
Electrolytes for electrical devices
525301, 525382, 525386, 525375, C10M14906
Patent
active
052522385
ABSTRACT:
The present invention is directed to a viscosity index improver for lubricating oil compositions comprising the reaction product of A) a copolymer of ethylene and at least one other alpha-olefin monomer, said copolymer grafted with ethylenically monounsaturated carboxylic acid material and B) amido-amine or thioamido-amine comprising the reaction product of a polyamine and alpha, beta-unsaturated compound of the formula ##STR1## wherein X is oxygen or sulfur, Y is OR.sup.4, --SR.sup.4 or ##STR2## and R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently selected from hydrogen, hydrocarbyl and substituted hydrocarbyl.
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Chung David Y.
Gutierrez Antonio
Johnston John E.
Lundberg Robert D.
Struglinski Mark J.
Exxon Chemical Patents Inc.
Howard Jacqueline V.
Kowalchyn Theodore V.
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