Title:
PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2023/189284
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a pressure-sensitive adhesive sheet that exhibits excellent adhesion to an adherend even in a high temperature environment or a moist heat environment. The present invention relates to a pressure-sensitive adhesive composition that comprises a (meth)acrylic polymer having a (meth)acrylic monomer unit having a hydroxyl group and a (meth)acrylic monomer unit having a cyclic structure, and at least one selected from a cyclization polymerizable polyfunctional monomer and a polyfunctional monomer having a cyclic structure. The glass transition temperature of the (meth)acrylic polymer is 0°C or lower, and the content of a nitrogen atom-containing monomer unit in the (meth)acrylic polymer is 0.1 mass% or less.
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Inventors:
FUJIOKA YASUYO (JP)
UENO YUMI (JP)
UENO YUMI (JP)
Application Number:
PCT/JP2023/008568
Publication Date:
October 05, 2023
Filing Date:
March 07, 2023
Export Citation:
Assignee:
OJI HOLDINGS CORP (JP)
International Classes:
C09J4/02; C09J7/38; C09J11/06; C09J133/00; C09J133/14
Domestic Patent References:
| WO2016063405A1 | 2016-04-28 | |||
| WO2014081003A1 | 2014-05-30 |
Foreign References:
| JP2019044024A | 2019-03-22 | |||
| JP6705542B1 | 2020-06-03 | |||
| JP2021084931A | 2021-06-03 | |||
| JP2020186330A | 2020-11-19 |
Attorney, Agent or Firm:
SIKs & Co. (JP)
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