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Patent Searching and Data


Title:
FILM, POLARIZING PLATE AND IMAGE DISPLAY
Document Type and Number:
Japanese Patent JP2009079098
Kind Code:
A
Abstract:

To provide a film having low hygroscopicity, low moisture permeability, moderate elasticity, no brittleness and excellent mechanical strength, and a polarizing plate and an image display using the same.

The film comprises a copolymer of (A) at least one 2-20C -olefin and (B) at least one cyclic olefin represented by general formula (1), wherein the copolymer has a molar fraction of a repeating unit derived from the component (A) in a range of 10-70 mol% and a molar fraction of a repeating unit derived from the component (B) in a range of 30-90 mol%, and the copolymer has a weight average molecular weight of 50,000-1,000,000. In the formula, R1-R4 each independently represents a hydrogen atom or an alkyl group, provided that at least one of R1-R4 is a linear or branched 4C alkyl group, and m represents 0 or 1.


Inventors:
Nagura, Masato
Sakurai, Seiya
Application Number:
JP2007000248085
Publication Date:
April 16, 2009
Filing Date:
September 25, 2007
Export Citation:
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Assignee:
FUJIFILM CORP
International Classes:
C08F232/00; C08F210/00; G02B5/30; G02F1/1335
Attorney, Agent or Firm:
高松 猛
矢澤 清純