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Title:
CYCLOOLEFIN COPOLYMER AND FILM
Document Type and Number:
Japanese Patent JP2009046613
Kind Code:
A
Abstract:

To provide a cycloolefin copolymer that effectively exhibits 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, at least one cycloolefin monomer (B) selected from among cycloolefin compounds, and at least one aromatic vinyl monomer (C) selected from among vinyl compounds having a cyclic unit composed of a condensed polycyclic compound. The film is composed of the cycloolefin copolymer.


Inventors:
Watanabe, Tadasuke
Application Number:
JP2007000215193
Publication Date:
March 05, 2009
Filing Date:
August 21, 2007
Export Citation:
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Assignee:
FUJIFILM CORP
International Classes:
C08F232/00; C08F210/00; C08J5/18; G02B5/30; G02F1/13363
Domestic Patent References:
JP2003050316A
JP2006143799A2006-06-08
JP2006221116A
JP2003255102A
JP2006030982A
Foreign References:
WO2006104049A1
Attorney, Agent or Firm:
高松 猛
矢澤 清純