Title:
DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2024/053498
Kind Code:
A1
Abstract:
Provided is a double-sided pressure-sensitive adhesive sheet which exhibits repairability when bonded to an adherend and with which adhesive strength after bonding can be intentionally improved by carrying out a heat treatment or a pressing treatment. A double-sided pressure-sensitive adhesive sheet 3 has a pressure-sensitive adhesive layer 2 on both surfaces of a base material 1. The pressure-sensitive adhesive layer 2 contains a binder component, a metal oxide and a black pigment. If the total amount of the binder component, the metal oxide and the black pigment is taken to be 100 mass%, the mass ratio of the metal oxide and the black pigment is 36.5:0.4 to 37.5:0.1. In addition, it is preferable for the metal oxide to be titanium oxide, for a release film to be layered on at least one of the pressure-sensitive adhesive layers 2, and for the L* value, as measured from the release film side, to be 40-75.
Inventors:
WATANABE MASAHIRO (JP)
KOBAYASHI TAKUMI (JP)
KOBAYASHI TAKUMI (JP)
Application Number:
PCT/JP2023/031377
Publication Date:
March 14, 2024
Filing Date:
August 30, 2023
Export Citation:
Assignee:
TATSUTA ELECTRIC WIRE & CABLE CO LTD (JP)
International Classes:
C09J7/38; C09J7/28; C09J11/04; C09J201/00
Foreign References:
| JP2022041820A | 2022-03-11 | |||
| KR20150049033A | 2015-05-08 | |||
| JP2020132233A | 2020-08-31 |
Attorney, Agent or Firm:
G-CHEMICAL INTELLECTUAL PROPERTY FIRM (JP)
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