C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 232/08 (2006.01)
Patent
CA 2058134
ABSTRACT OF THE DISCLOSURE The present invention discloses an alkylidene- norbornene polymer comprising as the essential constituent at least one kind of the structural unit represented by the formula Image (I) wherein R1 denotes an alkyl group of 1-4 carbon atoms and R2 denotes a hydrogen atom or an alkyl group of 1-5 carbon atoms, and a process for producing the same. According to the present invention, an alkylidene- norbornene polymer is obtained which is excellent in light resistance, transparency, heat resistance and moisture resistance and is useful as an optical polymeric material.
Hirokawa Yoshitsugu
Kohara Teiji
Natsuume Tadao
Tahara Shin-Ichiro
Marks & Clerk
Nippon Zeon Co. Ltd.
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