Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ADHESIVE SHEET, ADHESIVE SHEET WITH RELEASE SHEET, MULTILAYER BODY, AND METHOD FOR PRODUCING MULTILAYER BODY
Document Type and Number:
Japanese Patent JP2022032291
Kind Code:
A
Abstract:
To provide: an adhesive sheet which has high adhesive power and excellent blister resistance; an adhesive sheet with a release sheet, and a multilayer body, each of which comprises the adhesive sheet; and a method for producing a multilayer body.SOLUTION: An adhesive sheet is provided with an adhesive layer that contains a semi-cured product of an adhesive composition. The adhesive composition contains a crosslinkable acrylic copolymer (A), a crosslinking agent (B), a polyfunctional monomer (C) that has two or more polymerizable double bonds in each molecule, and a photopolymerization initiator (D). The crosslinkable acrylic copolymer (A) comprises a constituent unit (a2) with an acidic functional group. The content of the constituent unit (a2) is 5-15 mass% based on the mass of all constituent units included in the crosslinkable acrylic copolymer (A). The glass transition temperature of the crosslinkable acrylic copolymer (A) is -40 to -20°C. The content of the polyfunctional monomer (C) is 5-20 pts.mass per 100 pts.mass of the crosslinkable acrylic copolymer (A).SELECTED DRAWING: None

Inventors:
YASUDA NAOTO
KASHIMA MUTSUYUKI
NISHIDA MASAKI
Application Number:
JP2020135923A
Publication Date:
February 25, 2022
Filing Date:
August 11, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
OJI HOLDINGS CORP
International Classes:
C09J7/38; B32B27/00; C09J4/00; C09J7/10; C09J7/24; C09J7/25; C09J11/06; C09J133/00
Domestic Patent References:
JP2015098616A2015-05-28
JP2009242633A2009-10-22
JP2014196451A2014-10-16
JP2000345131A2000-12-12
JP2011054939A2011-03-17
JP2020007407A2020-01-16
JPH06177094A1994-06-24
JP2002348553A2002-12-04
JPH11140398A1999-05-25
JP2019073612A2019-05-16
JP2008050406A2008-03-06
JP2015059179A2015-03-30
JP2015089910A2015-05-11
JP2008155619A2008-07-10
JP2018009050A2018-01-18
JP2012001615A2012-01-05
JPH06152099A1994-05-31
JP2019044024A2019-03-22
Foreign References:
WO2015145635A12015-10-01
WO2016024618A12016-02-18
WO2014142193A12014-09-18
Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office



 
Previous Patent: vehicle

Next Patent: Adhesive sheet, adhesive sheet with release sheet, laminated body and method for manufacturing the l...