Cycloolefin addition copolymer and optical transparent material

Details Cycloolefin addition copolymer and optical transparent material Cycloolefin addition copolymer and optical transparent material

2006-03-21

2006-03-21

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...

C526S133000, C526S171000, C526S266000, C526S279000, C526S283000, C524S553000, C524S554000, C525S338000, C428S447000, C428S523000, C264S001100

Reexamination Certificate

active

07015293

ABSTRACT:
A cyclic olefin addition copolymer obtained by copolymerizing a cyclic olefin compound having a side chain substituent group with a ring structure, such as endo-tricyclo[4.3.0.12,5]deca-3,7-diene or endo-tricyclo[4.3.0.12,5]deca-3-ene, with another cyclic olefin compound such as bicyclo[2.2.1]hept-2-ene, and further with a cyclic olefin compound having a hydrolysable silyl group as needed, or hydrogenating after copolymerization; a composition for crosslinking in which a specific crosslinking agent is incorporated; a crosslinked product obtained by crosslinking the composition; an optical material containing the copolymer, the composition or the crosslinked product; and a method for producing the copolymer in which addition polymerization is conducted using a specific nickel catalyst.

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