Compositions – Electrolytes for electrical devices
Patent
1989-12-26
1990-11-27
Chaudhuri, Olik
Compositions
Electrolytes for electrical devices
252 51, C10M14700, C10M14902
Patent
active
049734130
ABSTRACT:
A polymeric lubricating oil additive containing pendant perfluoroaliphatic urethane units that behaves as a VI Improver and a fuel economy enhancer when added to lubricating oil compositions. The polymeric substrate may be a copolymer of 15-85 mole % ethylene and propylene or a terpolymer of 15-85 mole % ethylene, propylene, and 20-80 mole % of a non-conjugated diene or triene (C.sub.3 -C.sub.10) alpha olefin. The copolymer or terpolymer substrate has a molecular weight range of about 5,000 to about 500,000. A graft copolymer or terpolymer containing pendant isocyanate groups is prepared by reacting the ethylene propylene co- or terpolymer with an acrylating agent. Post-reacting the copolymer or terpolymer containing the pendant isocyanate group with a perfluoroaliphatic alcohol generates the additive.
REFERENCES:
patent: 4051050 (1977-09-01), Elliott et al.
patent: 4098710 (1978-07-01), Elliott et al.
patent: 4194984 (1980-03-01), Elliott et al.
Derosa Thomas F.
Jennejahn Rosemary J.
Kaufman Benjamin J.
Miller Edward F.
Chaudhuri Olik
Kulason Robert A.
Mallare Vincent A.
McAvoy E.
O'Loughlin James J.
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