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Title:
DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2023/282009
Kind Code:
A1
Abstract:
Provided is a double-sided pressure-sensitive adhesive sheet that has excellent shock resistance and a high shear adhesive strength.　This double-sided pressure-sensitive adhesive sheet 1 includes a pressure-sensitive adhesive agent layer 2. The pressure-sensitive adhesive agent layer 2 is an acrylic pressure-sensitive adhesive agent layer containing an acrylic polymer as a base polymer. The acrylic polymer includes a structural unit derived from a monomer component (A) which has a nonaromatic ring and the homopolymer of which has a glass transition temperature of 0°C or more. The proportion of the structural unit derived from the monomer component (A) in the acrylic polymer is 5 mass% or more. The pressure-sensitive adhesive agent layer 2 has a storage modulus G' at -20°C of 10 MPa or more, and a storage modulus G' at 65°C of 0.05 MPa or more.

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Inventors:
NISHIWAKI MASATAKA (JP)
IMOTO EIICHI (JP)
KATO NAOHIRO (JP)
YAMAMOTO KENICHI (JP)
WATANABE SHIGEKI (JP)
Application Number:
PCT/JP2022/024105
Publication Date:
January 12, 2023
Filing Date:
June 16, 2022
Export Citation:
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Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J7/38; C09J133/00
Domestic Patent References:
WO2017159789A12017-09-21
Foreign References:
US20170166786A12017-06-15
US20190308924A12019-10-10
KR20160135023A2016-11-24
JP2019510851A2019-04-18
JP2014047254A2014-03-17
KR20170097856A2017-08-29
KR20170120853A2017-11-01
Attorney, Agent or Firm:
G-CHEMICAL INTELLECTUAL PROPERTY FIRM (JP)
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