Process for producing hydrogenated product of cyclic olefin polymer prepared through ring-opening polymerization
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United States of America Patent
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Jun 21, 2005
Grant Date -
Mar 13, 2003
app pub date -
Oct 7, 2002
filing date -
May 31, 1999
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Abstract
A process for producing a hydrogenated product of a polymer prepared through ring-opening polymerization which comprises a polymerization step of polymerizing a cyclic olefin through ring-opening polymerization in the presence of a polymerization catalyst comprising an organoruthenium compound or an organoosmium compound to prepare a polymer, and a hydrogenation step of adding a hydrogenation catalyst and hydrogen into a polymerization system resulting from the polymerization step to hydrogenate the carbon-carbon double bonds of the polymer prepared through the ring-opening polymerization. When the organoruthenium compound- or organoosmium compound-containing catalyst further comprises a carbene compound, the catalyst exhibits a higher activity for the ring-opening polymerization.
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