Aminated polymeric additives for fuels and lubricants

Details Aminated polymeric additives for fuels and lubricants Aminated polymeric additives for fuels and lubricants

1974-07-31

1978-09-12

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 515A, C10M 132

Patent

active

041136365

ABSTRACT:
Copolymers, having a degree of crystallinity of 3 up to 25 weight percent, comprising about 68 to 80 mole % ethylene, and one or more C.sub.3 to C.sub.8 alpha-olefins are mechanically degraded at elevated temperatures, in the presence of air or oxygen-containing gas, to form an oxygenated-degraded polymer, which is reacted with an amine compound. Preferably, the polymer is only partially reacted with the amine. The resulting aminated polymers are useful as sludge dispersants for fuels and lubricants. When the aminated polymers have a high molecular weight, they are also useful as viscosity-index improvers.

REFERENCES:
patent: 3544520 (1970-12-01), Culbertson et al.
patent: 3687849 (1972-08-01), Abbott
patent: 3769216 (1973-10-01), Gordon et al.
patent: 3785980 (1974-01-01), Wilgus
patent: 3842010 (1974-10-01), Pappas et al.
patent: 3864268 (1975-02-01), Culbertson et al.

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