EPR dispersant VI improver

Details EPR dispersant VI improver EPR dispersant VI improver

1977-03-11

1979-09-25

Shaver, Paul F.

Compositions

Electrolytes for electrical devices

2603265F, 2603265FM, C10M 132

Patent

active

041690630

ABSTRACT:
Lubricating oil additives having both dispersant and viscosity-index improving properties are prepared by reacting an ethylene-propylene copolymer with chlorine and/or an alpha-beta unsaturated dicarboxylic acid or derivative, and then reacting the resulting intermediate with certain amines.

REFERENCES:
patent: 3769216 (1973-10-01), Gordon et al.
patent: 3864268 (1975-02-01), Culbertson et al.
patent: 3868330 (1975-02-01), Meinhardt et al.
patent: 3956149 (1976-05-01), Coleman

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