Process for producing hydrogenated product of cyclic olefin...

Details Process for producing hydrogenated product of cyclic olefin... Process for producing hydrogenated product of cyclic olefin...

2005-06-21

2005-06-21

Lipman, Bernard (Department: 1713)

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

Synthetic resins

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

C525S338000, C525S339000, C526S145000, C526S146000, C526S147000, C526S281000, C526S283000

Reexamination Certificate

active

06908970

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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