Hydrogenated copolymers of conjugated dienes and when desired a

Details Hydrogenated copolymers of conjugated dienes and when desired a Hydrogenated copolymers of conjugated dienes and when desired a

1976-04-19

1978-02-14

Gantz, Delbert E.

Compositions

Electrolytes for electrical devices

252 56R, 252 59, C10M 132

Patent

active

040737373

ABSTRACT:
A hydrogenated copolymer produced by copolymerization of from about 1 to about 10 mol percent butadiene and at least one other C.sub.5 to C.sub.12 conjugated diene, and, if desired, in order to provide a block copolymer, up to 45 mole percent of a vinyl aromatic monomer, upon addition to lubricating oils containing a pour point depressing amount of an oil-soluble polymeric pour depressant, provides viscosity modification, oxidative and shear stability with excellent low temperature viscometric properties.

REFERENCES:
patent: 2688643 (1954-09-01), Dean et al.
patent: 3646142 (1972-02-01), Strobel
patent: 3752767 (1973-08-01), Eckert et al.
patent: 3772196 (1973-11-01), St. Clair et al.
patent: 3795615 (1974-03-01), Pappas et al.
patent: 3948843 (1976-04-01), Saint-Pierre et al.

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