Title:
DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2023/282011
Kind Code:
A1
Abstract:
Provided is a double-sided pressure-sensitive adhesive sheet which includes a colored pressure-sensitive adhesive layer and which exhibits excellent impact resistance and excellent processability. A double-sided pressure-sensitive adhesive sheet 1 comprises a pressure-sensitive adhesive layer 2. The pressure-sensitive adhesive layer 2 is an active energy ray-curable acrylic pressure-sensitive adhesive layer that contains an acrylic polymer as a base polymer. The pressure-sensitive adhesive layer 2 contains a coloring agent, and the content of the coloring agent in the pressure-sensitive adhesive layer 2 is 0.8 parts by mass or less relative to a total of 100 parts by mass of the base polymer. The pressure-sensitive adhesive layer 2 has a storage elastic modulus G' of 10 MPa or more at -20ºC and has a gel fraction of 60 mass% or more.
Inventors:
IMOTO EIICHI (JP)
YAMAMOTO KENICHI (JP)
NISHIWAKI MASATAKA (JP)
WATANABE SHIGEKI (JP)
KATO NAOHIRO (JP)
YAMAMOTO KENICHI (JP)
NISHIWAKI MASATAKA (JP)
WATANABE SHIGEKI (JP)
KATO NAOHIRO (JP)
Application Number:
PCT/JP2022/024109
Publication Date:
January 12, 2023
Filing Date:
June 16, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J7/38; C09J7/10; C09J11/04; C09J133/08
Foreign References:
| JP2020097691A | 2020-06-25 | |||
| JP2018045213A | 2018-03-22 | |||
| JP2021024907A | 2021-02-22 |
Attorney, Agent or Firm:
G-CHEMICAL INTELLECTUAL PROPERTY FIRM (JP)
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