ADHESIVE LAYER FOR OPTICAL FILM, ADHESIVE OPTICAL FILM, AND IMAGE-DISPLAYING DEVICE

Title:

ADHESIVE LAYER FOR OPTICAL FILM, ADHESIVE OPTICAL FILM, AND IMAGE-DISPLAYING DEVICE

Document Type and Number:

Japanese Patent JP2012111870

Kind Code:

A

Abstract:

To provide an adhesive layer for optical film, formed from an aqueous dispersion type adhesive composition, capable of satisfying optical characteristics, and also satisfying durability under a heated condition and a humidified condition.

This adhesive layer for the optical film formed from the aqueous dispersion type adhesive composition is characterized in that the aqueous dispersion type adhesive composition is an aqueous dispersion containing (A) an aqueous dispersion type (meth)acrylic copolymer containing 60 to 99.9 wt.% alkyl (meth)acrylate, and 0.1 to 10 wt.% carboxy group-containing monomer as monomer units based on the total amount of monomer units, and (B) an alkali silicate salt, and also the adhesive layer has ≤1% haze value in the case that its thickness is 23 μm.

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Inventors:

SHIMOKURI DAIKI
TAKAHASHI TOSHIKI
MAKIHATA YOSUKE
OKADA KENICHI

Application Number:

JP2010262694A

Publication Date:

June 14, 2012

Filing Date:

November 25, 2010

Export Citation:

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Assignee:

NITTO DENKO CORP

International Classes:

C09J7/02; C09J11/04; C09J133/00; C09J133/14; C09J143/02; C09J143/04; G02B1/04; G02F1/1335

Attorney, Agent or Firm:

Patent Business Corporation Unias International Patent Office

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