Title:
粘着剤組成物、粘着剤層、粘着剤層付光学フィルム、光学部材、及び画像表示装置
Document Type and Number:
Japanese Patent JP6725373
Kind Code:
B2
Abstract:
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 thestyrene-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 enoughnot to suffer from problems such as delamination or peeling.
Inventors:
Ryohei Sawasaki
Atsushi Yasui
Isaki
Atsushi Yasui
Isaki
Application Number:
JP2016177677A
Publication Date:
July 15, 2020
Filing Date:
September 12, 2016
Export Citation:
Assignee:
NITTO DENKO CORPORATION
International Classes:
C09J109/08; B32B27/00; B32B27/30; C09J7/38; C09J11/08; C09J123/22; C09J153/02; G02B5/00; G02B5/30
Domestic Patent References:
| JP2013216853A | ||||
| JP2015155490A | ||||
| JP2013119603A | ||||
| JP2008169331A | ||||
| JP2014162827A | ||||
| JP2014231586A | ||||
| JP2013216782A | ||||
| JP2007197517A |
Foreign References:
| WO2014132780A1 | ||||
| WO2014118828A1 | ||||
| WO2015030375A1 | ||||
| WO2014069398A1 | ||||
| WO2014185350A1 |
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office