Title:
ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2023/210571
Kind Code:
A1
Abstract:
The present invention provides an adhesive sheet which has excellent electrical conductivity and excellent reworkability, and is increased in the adhesive force with time, while having a small amount of outgas. An adhesive sheet 1 according to the present invention comprises a metal base material 2 and an adhesive layer 3 that is arranged on at least one surface of the metal base material 2. The adhesive layer 3 contains, relative to 100 parts by mass of a polymer (A) that has a glass transition temperature of less than 0°C, 0.1 part by mass to 20 parts by mass of a polymer (B) that contains, as monomer units, a monomer (B1) having a polyorganosiloxane skeleton and a monomer (B2) having a homopolymer glass transition temperature of 40°C or more, wherein the monomer (B1) has a functional group equivalent (arithmetic average) of not less 1,000 g/mol but less than 15,000 g/mol and a weight average molecular weight of not less than 10,000 but less than 100,000, and 0.4 part by mass or more of a phenolic antioxidant.
Inventors:
OKAHARA KAI (JP)
WATANABE HIROYUKI (JP)
WATANABE HIROYUKI (JP)
Application Number:
PCT/JP2023/016091
Publication Date:
November 02, 2023
Filing Date:
April 24, 2023
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J7/38; C09J7/28; C09J11/06; C09J201/00; H01M4/64; H01M4/66; H01M10/0562; H01M10/0565; C09J133/04; C09J143/04
Foreign References:
| JP2021121682A | 2021-08-26 | |||
| JP2014224227A | 2014-12-04 | |||
| JP2021105164A | 2021-07-26 | |||
| JP2019065253A | 2019-04-25 | |||
| KR20210121647A | 2021-10-08 | |||
| JP2014240466A | 2014-12-25 | |||
| JP2004335593A | 2004-11-25 |
Attorney, Agent or Firm:
G-CHEMICAL INTELLECTUAL PROPERTY FIRM (JP)
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