Star-shaped polymer reacted with dicarboxylic acid and amine as

Details Star-shaped polymer reacted with dicarboxylic acid and amine as Star-shaped polymer reacted with dicarboxylic acid and amine as

1977-05-11

1979-02-27

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

260879, 260880B, C10M 136, C10M 330, C08L 906

Patent

active

041418476

ABSTRACT:
Lubricating oil additives having both dispersant and viscosity index-improving properties are prepared by reacting a selectively hydrogenated star-shaped polymer having at least four arms of polymers or copolymers of dienes and monoalkenyl arenes with an alpha-beta unsaturated carboxylic acid or derivative, and then reacting the resulting intermediate with an amine.

REFERENCES:
patent: 3668125 (1972-06-01), Anderson
patent: 3903003 (1975-09-01), Murphy et al.
patent: 3965019 (1976-06-01), St. Clair et al.
patent: 4032459 (1977-06-01), Crossland et al.

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