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Title:
ADHESIVE COMPOSITION FOR OPTICAL FILM, ADHESIVE LAYER FOR OPTICAL FILM, OPTICAL FILM WITH ADHESIVE LAYER AND IMAGE DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2015199942
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an adhesive composition for optical film satisfying durability with no generating foaming, peeling or humidified white turbidness, capable of suppressing display unevenness due to light leak and forming an adhesive layer excellent in metal corrosion resistance, to a glass and a transparent conductive layer.SOLUTION: There is provided an adhesive composition for optical film containing a (meth)acryl polymer (A) containing alkyl (meth)acrylate (a1) of 70 wt.%, aromatic ring-containing (meth)acrylate (a2) of 3 to 25 wt.%, amide group-containing monomer (a3) of 0.1 to 8 wt.%, carboxyl group-containing monomer (a4) of 0.01 to 2 wt.% and hydroxyl group-containing monomer (a5) of 0.01 to 3 wt.% as monomer units, having a weight average molecular weight (Mw) of 1,000,000 to 2,500,000 and satisfying Mw/number average molecular weight (Mn) of 1.8 to 10, and a crosslinking agent (B) of 0.01 to 3 pts.wt. based on 100 pts.wt. of the (meth)acryl polymer.

Inventors:
KIMURA TOMOYUKI
YAMAMOTO SATOSHI
FUJITA MASAKUNI
TOYAMA YUSUKE
Application Number:
JP2015072816A
Publication Date:
November 12, 2015
Filing Date:
March 31, 2015
Export Citation:
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Assignee:
NITTO DENKO CORP
International Classes:
C09J133/04; C08J7/043; C08J7/044; C09J7/02; C09J11/04; C09J11/06; C09J133/14; C09J139/04; C09J171/00
Domestic Patent References:
JP2012102322A2012-05-31
JP2012196953A2012-10-18
JP2010275522A2010-12-09
JP2015193811A2015-11-05
JP2012242473A2012-12-10
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office



 
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