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Patent Searching and Data


Title:
CYCLOOLEFIN COPOLYMER AND FILM
Document Type and Number:
Japanese Patent JP2009046614
Kind Code:
A
Abstract:

To provide a cycloolefin copolymer that effectively exhibits reverse wavelength dispersion of birefringence, and a film composed of the copolymer.

The cycloolefin copolymer is obtained by addition polymerization of at least one non-cycloolefin monomer (A) selected from among ethylene and 3-20C -olefin compounds and a specific cycloolefin monomer (B), for example, exo-1-naphthylnorbornene. The film is composed of the copolymer.


Inventors:
Watanabe, Tadasuke
Application Number:
JP2007000215194
Publication Date:
March 05, 2009
Filing Date:
August 21, 2007
Export Citation:
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Assignee:
FUJIFILM CORP
International Classes:
C08F210/00; C08F232/00; C08J5/18; G02B5/30; G02F1/13363
Attorney, Agent or Firm:
高松 猛
矢澤 清純