Amine modified hydrogenation of nitrile rubber
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United States of America Patent
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Dec 24, 1991
Grant Date -
N/A
app pub date -
Dec 13, 1990
filing date -
Dec 13, 1990
priority date (Note) -
Expired
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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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