Title:
ACRYLIC COPOLYMER, OPTICAL FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/092156
Kind Code:
A1
Abstract:
[Problem] To provide an acrylic copolymer of excellent transparency and heat resistance, and exhibiting low levels of both orientation birefringence and photoelelastic birefringence when formed into film profiles, as well as to provide an optical film containing the acrylic copolymer, and a polarizing plate and liquid crystal display device including the optical film. [Solution] This acrylic copolymer contains as constituent units N-aromatic-substituted maleimide units, alkyl (meth)acrylate units, and third constituent units selected from the group consisting of (meth)acrylic acid halogenated aromatic ester units, halogenated alkyl (meth)acrylates, and structural units represented by the following general formula (1) (wherein R1 indicates a hydrogen atom or the methyl group, R2 indicates an alkanediyl group, and R3 indicates an aryl group).
Inventors:
KOIKE YASUHIRO (JP)
TAGAYA AKIHIRO (JP)
UCHIZAWA SAYAKO (JP)
MATSUO AKIRA (JP)
MATSUMURA YASUO (JP)
TAGAYA AKIHIRO (JP)
UCHIZAWA SAYAKO (JP)
MATSUO AKIRA (JP)
MATSUMURA YASUO (JP)
Application Number:
PCT/JP2013/083348
Publication Date:
June 19, 2014
Filing Date:
December 12, 2013
Export Citation:
Assignee:
UNIV KEIO (JP)
JX NIPPON OIL & ENERGY CORP (JP)
JX NIPPON OIL & ENERGY CORP (JP)
International Classes:
C08F220/12; C08F220/30; C08F222/40; G02B5/30; G02F1/1335
Foreign References:
| JPS60235817A | 1985-11-22 | |||
| JPH07196745A | 1995-08-01 | |||
| JP2002265537A | 2002-09-18 | |||
| JP2008255149A | 2008-10-23 | |||
| JPH02175711A | 1990-07-09 | |||
| JPH03195710A | 1991-08-27 |
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
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