Treatment of a hydrogenated polymer solution after hydrogenation

Details Treatment of a hydrogenated polymer solution after hydrogenation Treatment of a hydrogenated polymer solution after hydrogenation

1983-03-07

1984-09-11

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525339, 525366, C08F 830

Patent

active

044710992

ABSTRACT:
In the preparation of nitrogen-containing dispersant viscosity index improvers and/or gasoline detergent additives wherein a polymer cement is hydrogenated, an alkaline wash step following hydrogenation catalyst removal reduces residual poisons such that subsequent lithiation is improved. The lithiated copolymer thereafter is treated with various nitrogen-containing compounds reactive with the lithiated sites.

REFERENCES:
patent: 2893982 (1959-07-01), Campbell
patent: 3023201 (1962-02-01), Moberly et al.
patent: 3299163 (1967-01-01), Zelinski
patent: 3531448 (1970-09-01), Johnson
patent: 3696088 (1972-10-01), DeVault
patent: 3751384 (1973-08-01), Langer, Jr.
patent: 3852252 (1974-12-01), DeVault et al.
patent: 4028485 (1977-06-01), Poloso et al.
patent: 4098991 (1978-07-01), Kang
patent: 4145298 (1979-03-01), Trepka
patent: 4238202 (1980-12-01), Trepka et al.
patent: 4278506 (1981-07-01), Irvin
patent: 4402843 (1983-09-01), Trepka
patent: 4402844 (1983-09-01), Trepka

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