Polymeric additive for lubricating oils

Details Polymeric additive for lubricating oils Polymeric additive for lubricating oils

1993-10-29

1995-06-20

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

525379, 525386, 525285, 525301, C10M12938, C10M14302

Patent

active

054258880

ABSTRACT:
Oil-soluble polymer improving the viscosity index of lubricating oils, endowed with dispersant properties and capable of lowering the pour point ("pour point depressant"), obtained by means of a first step of reaction between a polyolefinic copolymer and a mixture of C.sub.8 -C.sub.25 alcohol (meth)acrylates and (meth)acrylic acid and a second step of condensation of the so modified copolymer with a polyamine.

REFERENCES:
patent: 3316177 (1967-04-01), Dorer, Jr.
patent: 3326804 (1967-06-01), Hu
patent: 3923930 (1975-12-01), Waldbillig
patent: 4144181 (1979-03-01), Elliott et al.
patent: 4160739 (1979-07-01), Stambaugh et al.
patent: 4169063 (1979-09-01), Kiovsky
patent: 4219432 (1980-08-01), Girgenti et al.
patent: 4517104 (1985-05-01), Block et al.
patent: 5273671 (1993-12-01), Patil et al.
patent: 5275747 (1994-01-01), Gutierrez et al.

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