Viscosity index improvers with dispersant properties prepared by

Details Viscosity index improvers with dispersant properties prepared by Viscosity index improvers with dispersant properties prepared by

1981-10-23

1983-09-06

Shine, W. J.

Compositions

Electrolytes for electrical devices

525366, 525375, C10M 132, C08F25502

Patent

active

044028431

ABSTRACT:
Nitrogen-containing copolymers useful as viscosity index improvers with dispersing characteristics are prepared by the reaction of lithiated hydrogenated conjugated diene-monovinylarene copolymers with substituted aminopyridine.

REFERENCES:
patent: 3554911 (1971-01-01), Schiff et al.
patent: 3772196 (1973-11-01), St. Clair et al.
patent: 4085055 (1978-04-01), Durand et al.
patent: 4145298 (1979-03-01), Trepka
patent: 4229308 (1980-10-01), Brulet et al.
patent: 4238202 (1980-12-01), Trepka et al.
94 C.A. 49989j.
Fessender Organic Chemistry (1979) pp. 249 and 760.

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