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Title:
CYCLOOLEFIN POLYMER, OPTICAL MATERIAL USING THE SAME, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2008291219
Kind Code:
A
Abstract:

To provide a cycloolefin polymer applicable to a method for film casting under cooling.

The cycloolefin polymer is a cycloolefin polymer containing at least repeating units represented by formula (1A) and repeating units represented by formula (1B), wherein the copolymerization ratios x and y satisfy 0.03y/(x+y)0.50; and the number-average molecular weight is 70,000-300,000; and the weight-average molecular weight is 200,000-700,000. In formulae (1A) and (1B), A is COOR2 or OCOR2; and R2 is a 1-10C linear alkyl group.


Inventors:
Watanabe, Tadasuke
Application Number:
JP2008000094238
Publication Date:
December 04, 2008
Filing Date:
March 31, 2008
Export Citation:
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Assignee:
FUJIFILM CORP
International Classes:
C08F232/00; C08J5/18; G02B5/30; C08F8/12
Domestic Patent References:
JP2001098026A
JP2007076001A
JPH11286469A
Foreign References:
WO1999003903A1
Attorney, Agent or Firm:
高松 猛
矢澤 清純