Title:
OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET, OPTICAL LAMINATE, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/244813
Kind Code:
A1
Abstract:
A purpose of the present invention is to provide: an optical pressure-sensitive adhesive sheet that has a layered structure including a pressure-sensitive adhesive layer which is less apt to have failures regarding transparency, appearance, or durability, exhibits a low surface resistivity, and has excellent antistatic performance; and an optical laminate. This optical pressure-sensitive adhesive sheet has a layered structure comprising: a substrate 1 having a first surface 1a and a second surface 1b; and a pressure-sensitive adhesive layer 2 superposed on the first surface 1a of the substrate 1. The pressure-sensitive adhesive layer 2 is formed from a pressure-sensitive adhesive composition comprising: an antistatic agent; and an acrylic polymer (A), a mixture of monomers for constituting the acrylic polymer (A), or a partial polymer of a mixture of monomers for constituting the acrylic polymer (A). The antistatic agent is characterized by being an ionic compound having, in the molecule, a functional group capable of forming a covalent bond with the acrylic polymer (A).
Inventors:
KATAMI HIROFUMI (JP)
MIZUNO DAISUKE (JP)
AMAMIYA KOTARO (JP)
MIZUNO DAISUKE (JP)
AMAMIYA KOTARO (JP)
Application Number:
PCT/JP2022/020709
Publication Date:
November 24, 2022
Filing Date:
May 18, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B27/00; B32B27/18; B32B27/30; C09J4/02; C09J7/29; C09J7/38; C09J11/06; G02B1/14; G02B1/16; G09F9/00
Domestic Patent References:
| WO2017047615A1 | 2017-03-23 |
Foreign References:
| JP2012117046A | 2012-06-21 | |||
| JP2014189787A | 2014-10-06 | |||
| JP2014095084A | 2014-05-22 | |||
| JP2013178466A | 2013-09-09 |
Attorney, Agent or Firm:
G-CHEMICAL INTELLECTUAL PROPERTY FIRM (JP)
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