Amine modified hydrogenation of nitrile rubber

Details Amine modified hydrogenation of nitrile rubber Amine modified hydrogenation of nitrile rubber

1990-12-13

1991-12-24

Lipman, Bernard

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

Synthetic resins

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

5253293, 525339, C08F 804

Patent

active

050753886

ABSTRACT:
An improved process is provided for the hydrogenation of nitrile rubber wherein the molecular weight increase during the hydrogenation process is minimized and controlled, the improvement being that the hydrogenation is undertaken in the presence in the solution of an NH.sub.2 -containing compound selected from ammonia and a C.sub.1 to C.sub.20 primary amine.

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patent: 4464515 (1984-08-01), Rempel et al.
patent: 4503196 (1985-03-01), Rempel et al.
patent: 4631315 (1986-12-01), Buding et al.
patent: 4812528 (1989-03-01), Rempel et al.
patent: 4816525 (1989-03-01), Rempel et al.

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