Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Compound of indeterminate structure – prepared by reacting a...
Patent
1995-06-06
1996-07-09
McAvoy, Ellen M.
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Compound of indeterminate structure, prepared by reacting a...
5253336, 525349, 508229, C10M15102
Patent
active
055341713
ABSTRACT:
A polymeric lubricant additive that behaves as a viscosity index improver and imparts enhanced anti-oxidancy, dispersancy, and anti-wear properties to said lubricant oil has been prepared. The polymeric substrate is a random co- or terpolymer of ethylene propylene and a third monomer; or a block terpolymer of styrene--ethylenebutylene--styrene where hydrogenation has removed aliphatic unsaturation.
Ethylenically unsaturated carboxylic acid or acid anhydride is grafted to these aforementioned substrates and imidized with amino-thiadiazole of the formula: ##STR1## wherein R.sub.1 is H.sub.2 or a (C.sub.1 -C.sub.10) alkyl radical selected from the group consisting of a alkyl, alkenyl, alkoxyl, aralkyl, alkaryl, hydroxyalkyl and aminoalkyl, to produce said polymeric lubricant additive.
REFERENCES:
patent: 4904403 (1990-02-01), Karol
patent: 5075383 (1991-12-01), Migdal et al.
patent: 5182041 (1993-01-01), Benfarmeo et al.
patent: 5200102 (1993-04-01), Mishra et al.
patent: 5472627 (1995-12-01), DeRosa et al.
Benfaremo Nicholas
Derosa Thomas F.
Jennejahn Rosemary J.
Kapuscinski Maria M.
Kaufman Benjamin J.
DSM Copolymer Inc.
McAvoy Ellen M.
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