Title:
ADHESIVE COMPOSITION, ADHESIVE SHEET FORMED OF SAID ADHESIVE COMPOSITION, AND ARTICLE USING SAID ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2024/095322
Kind Code:
A1
Abstract:
This adhesive composition comprises 100 parts by mass of (a) syrup obtained by mixing a (meth)acrylic copolymer containing alkyl (meth)acrylate and a carboxyl group-containing (meth)acrylate as constituent components, an alkyl (meth)acrylate monomer, a carboxyl group-containing (meth)acrylate monomer, and a hydroxyl group-containing (meth)acrylate monomer, 0.5-10 parts by mass of (b) a tackifying resin, 0.1-3.0 parts by mass of (c) hollow fine particles, 0.1-5 parts by mass of (d) a photopolymerization initiator, and 0.01-5 parts by mass of (e) a crosslinking agent, wherein: the hollow fine particles (c) are resin-based hollow fine particles having a shell part composed of an organic polymer material; the 25% compressive strength of a crosslinked adhesive layer formed of the adhesive composition is 0.06-0.11 MPa; and the tensile strength of the adhesive layer at 23ºC is 0.35-0.65 MPa. The adhesive composition can form an adhesive layer having excellent flexibility and having excellent adhesive strength even at a high temperature.
Inventors:
KIMOTO REI (JP)
TANAKA GOH (JP)
TSUCHIYA YASUSHI (JP)
TANAKA GOH (JP)
TSUCHIYA YASUSHI (JP)
Application Number:
PCT/JP2022/040745
Publication Date:
May 10, 2024
Filing Date:
October 31, 2022
Export Citation:
Assignee:
TERAOKA SEISAKUSHO KK (JP)
International Classes:
C09J133/00; C09J4/06; C09J11/06
Domestic Patent References:
| WO2016152787A1 | 2016-09-29 |
Foreign References:
| JP2015117292A | 2015-06-25 | |||
| JP2015117293A | 2015-06-25 | |||
| JP2014051644A | 2014-03-20 | |||
| JP7109698B1 | 2022-07-29 | |||
| CN115216229A | 2022-10-21 | |||
| KR20200065286A | 2020-06-09 |
Attorney, Agent or Firm:
MIYAZAKI Teruo et al. (JP)
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