Process of making olefin copolymer lubricant additives by perman

Details Process of making olefin copolymer lubricant additives by perman Process of making olefin copolymer lubricant additives by perman

1977-11-14

1979-05-01

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 56R, 252 55, 526 15, 526 477, 526 522, 526 523, 526 54, C10M 132, C10M 326, C10M 520, C10M 730

Patent

active

041522761

ABSTRACT:
Ethylene/C.sub.3-12 .alpha.-monoolefin copolymers having an average molecular weight of about 10,000-1,000,000 containing about 1-10 pendent amide and/or ester groups per each 10,000 molecular weight are effective ashless dispersants and impart viscosity lift to lubricating oils. They are made by the permanganate oxidation of ethylene/C.sub.3-12 .alpha.-monoolefin
on-conjugated diene terpolymers which oxidizes the residual olefinic double bond of the diene unit to a carboxylic acid which is amidated and/or esterified.

REFERENCES:
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patent: 3388067 (1968-06-01), Takashima et al.
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patent: 3687849 (1972-08-01), Abbott
patent: 3923930 (1975-12-01), Waldbillig
patent: 4002569 (1977-01-01), Rubin et al.
patent: 4007121 (1977-02-01), Holder et al.
patent: 4032700 (1977-06-01), Song et al.
patent: 4068056 (1978-01-01), Engel et al.

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