Title:
POLARIZING PLATE PROTECTIVE FILM, METHOD FOR PRODUCING SAME, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/141340
Kind Code:
A1
Abstract:
The objective of the present invention is to provide: a polarizing plate protective film which has high water resistance and heat resistance, thereby suppressing the occurrence of display unevenness of a liquid crystal display device caused by bending, and which exhibits good adhesion to a polarizer in combination with either a water-based glue or an active energy ray-curable adhesive; a method for producing the polarizing plate protective film; a polarizing plate; and a liquid crystal display device.
A polarizing plate protective film according to the present invention is characterized by containing, as main components of a thermoplastic resin, a copolymer (A) that is obtained by polymerizing an aromatic vinyl monomer and an unsaturated nitrile monomer and a copolymer (B) that has an imide ring structure at a mass ratio A:B within the range from 100:0 to 50:50.
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Inventors:
TAMAGAWA MINORI (JP)
Application Number:
PCT/JP2015/053907
Publication Date:
September 24, 2015
Filing Date:
February 13, 2015
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
G02B5/30; C08J5/18; C08L25/12; G02F1/1335; B32B7/02; B32B27/28
Domestic Patent References:
| WO2009047924A1 | 2009-04-16 | |||
| WO2005091023A1 | 2005-09-29 | |||
| WO2011018993A1 | 2011-02-17 | |||
| WO2005100457A1 | 2005-10-27 |
Foreign References:
| JP2008247933A | 2008-10-16 | |||
| JP2010164893A | 2010-07-29 | |||
| JP2013083907A | 2013-05-09 | |||
| JP2009276420A | 2009-11-26 | |||
| JP2006328267A | 2006-12-07 | |||
| JP2005062262A | 2005-03-10 |
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
Patent business corporation Mitsuaki international patent firm (JP)
Patent business corporation Mitsuaki international patent firm (JP)
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