Nitrile rubber hydrogenation

Details Nitrile rubber hydrogenation Nitrile rubber hydrogenation

1992-09-02

1993-05-04

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

052082962

ABSTRACT:
An improved process is provided for the catalytic hydrogenation of nitrile rubber using a ruthenium catalyst wherein the improvement is that the nitrile rubber is provided as an aqueous emulsion and a solvent and a selected organic additive are present during the hydrogenation, whereby the molecular weight increase in the hydrogenation process is minimized and controlled.

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