Dispersant anti-oxidant VI improver and lubricating oil composit

Details Dispersant anti-oxidant VI improver and lubricating oil composit Dispersant anti-oxidant VI improver and lubricating oil composit

1989-08-18

1990-08-14

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

5253317, 5253321, 525377, C10M14912, C08F21016

Patent

active

049485245

ABSTRACT:
An additive composition prepared by reacting a polymer prepared from ethylene and at least one C.sub.3 -C.sub.10 alpha-monoolefin and optionally a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene from about 20 to 85 mole percent of said C.sub.3 -C.sub.10 alpha-monoolefin and from about 0 to 15 mole percent of said polyene and having an average molecular weight ranging from about 5,000 to 500,000 with a nitrosodiphenylamine compound represented by the formula: ##STR1## in which R and R.sup.1 represent hydrogen or an alkyl, alkenyl, or alkoxyl radical having from 1 to 8 carbon atoms, and a lubricating oil composition containing same is provided.

REFERENCES:
patent: 3645980 (1972-02-01), Baker et al.
patent: 3793252 (1974-02-01), Corish et al.
patent: 4699723 (1987-10-01), Kapuscinski et al.

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