Title:
ADHESIVE COMPOSITION FOR POLARIZING PLATES AND POLARIZING PLATE HAVING ADHESIVE LAYER
Document Type and Number:
WIPO Patent Application WO/2016/072198
Kind Code:
A1
Abstract:
[Problem] To provide an adhesive composition for polarizing plates, suitable for configurations whereby at least one polarizer protective film normally formed on both surfaces of a polarizer is omitted, warping (bending) of liquid crystal cells can be suppressed, and an adhesive layer having excellent durability can be formed. [Solution] An adhesive composition for polarizing plates, characterized by being used to form an adhesive layer that comes directly in contact with polarizers and by containing a (meth) acrylic copolymer (A) and a crosslinking agent (B), said (meth) acrylic copolymer (A): being obtained by copolymerization of monomer components including a crosslinking functional group-containing monomer and a (meth) acrylate alkyl ester having C4-18 alkyl groups; and having a branching degree of no more than 0.55 as measured by a gel permeation chromatography/multi angle laser light scattering detector (GPC-MALS).
Inventors:
YONEKAWA YUYA (JP)
TANAKA RYUSUKE (JP)
TANAKA RYUSUKE (JP)
Application Number:
PCT/JP2015/078303
Publication Date:
May 12, 2016
Filing Date:
October 06, 2015
Export Citation:
Assignee:
SOKEN KAGAKU KK (JP)
International Classes:
G02B5/30; B32B27/00; C09J7/10; C09J133/06; C09J175/04
Domestic Patent References:
| WO2007029298A1 | 2007-03-15 |
Foreign References:
| JP2012201715A | 2012-10-22 | |||
| JP2004091500A | 2004-03-25 | |||
| JP2012247574A | 2012-12-13 | |||
| JP2012128099A | 2012-07-05 | |||
| JPH05297220A | 1993-11-12 | |||
| JP2014164052A | 2014-09-08 | |||
| JP2010048889A | 2010-03-04 |
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
Patent business corporation SSINPAT (JP)
Patent business corporation SSINPAT (JP)
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