Hydrogenation of nitrile rubber
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United States of America Patent
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May 11, 1993
Grant Date -
N/A
app pub date -
Sep 2, 1992
filing date -
Sep 2, 1992
priority date (Note) -
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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 inorganic additive are present during the hydrogenation, whereby the molecular weight increase in the hydrogenation process is minimized and controlled.
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