Norbornene-based ring-opening polymerization polymer,...

Details Norbornene-based ring-opening polymerization polymer,... Norbornene-based ring-opening polymerization polymer,...

2006-05-02

2006-05-02

Teskin, Fred (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S171000, C526S256000, C526S262000, C526S271000, C525S326800, C525S327400, C525S328500, C525S329500, C525S338000

Reexamination Certificate

active

07037993

ABSTRACT:
A norbornene ring-opened polymer which in the molecule has repeating units represented by the formula (1):wherein R1represents Q, R2represents Q or C(═O)R5, R3represents Q or C(═O)R6, and R4represents Q or X—C(═O)R7(wherein Q represents hydrogen, a C1-10hydrocarbon group, etc.; R5, R6and R7each represents hydroxyl, C1-10alkoxyl, etc., provided that R6and R7may be bonded to each other to constitute oxygen, NH, etc.; X represents methylene, etc., provided that when R2is Q, then R3is C(═O)R6and R4is X—C(═O)R7and that when R4is Q, then R2is C(═O)R5, R3is C(═O)R6, and the configuration of R2and R3is trans, and m is 0 or 1), the polymer having a weight-average molecular weight as determined by gel permeation chromatography of 1,000 to 1,000,000. Also provided is a hydrogenation product of the norbornene ring-opened polymer. The norbornene ring-opened polymer and the hydrogenation product are excellent in heat resistance, electrical properties, etc.

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