ADHESIVE COMPOSITION, ADHESIVE LAYER, OPTICAL FILM HAVING ATTACHED ADHESIVE LAYER, OPTICAL MEMBER, AND IMAGE DISPLAY DEVICE

WIPO Patent Application WO/2017/047703

A1

The present invention pertains to an adhesive composition containing a rubber-based polymer (A) and a tackifier (B), wherein the rubber-based polymer (A) includes at least one rubber-based polymer selected from the group consisting of a styrene-based thermoplastic elastomer (A1) and an isobutylene-based polymer (A2) having a weight average molecular weight of 500,000 or greater. The rubber-based polymer includes at least one selected from the group consisting of a natural material-based tackifier (B1), a petroleum resin-based tackifier (B2) and hydrogenated products thereof, when including the styrene-based thermoplastic elastomer (A1); and includes at least one selected from the group consisting of a natural material-based tackifier (B1) and hydrogenated products thereof, when including the isobutylene-based polymer (A2). This adhesive composition has low moisture permeability, and is capable of forming an adhesive layer which, even in high-temperature environments, is durable enough not to suffer from problems such as delamination or peeling.

SAWAZAKI RYOHEI (JP)
YASUI ATSUSHI (JP)
IZAKI AKINORI (JP)

PCT/JP2016/077289

March 23, 2017

September 15, 2016

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NITTO DENKO CORP (JP)

C09J125/08; B32B25/08; B32B25/14; B32B27/00; C09J7/10; C09J11/06; C09J123/22; C09J193/04; G02B5/30

WO2014132780A1

2014-09-04

JP2013216853A	2013-10-24
JP2015155490A	2015-08-27

UNIUS PATENT ATTORNEYS OFFICE (JP)

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