Title:
ADHESIVE SHEET, REINFORCEMENT FILM, AND DEVICE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/209830
Kind Code:
A1
Abstract:
An adhesive sheet (2) is obtained by forming, into a layered configuration, an adhesive composition that contains an acrylic base polymer and a polyfunctional (meth)acrylate having four or more (meth)acryloyl groups in one molecule as a photocuring agent. Relative to the total amount of constituent monomer components, the acrylic base polymer contains at least 70 wt% of (meth)acrylic acid alkyl esters, which are chain alkyls with the alkyl group having at least 6 carbons. The content in the adhesive composition of polyfunctional (meth)acrylate having four or more functional groups is preferably at least 7 parts by weight relative to 100 parts by weight of the acrylic base polymer.
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Inventors:
KATAOKA KENICHI (JP)
Application Number:
PCT/JP2022/011405
Publication Date:
October 06, 2022
Filing Date:
March 14, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J4/02; C09J7/38; C09J11/06; C09J133/00
Domestic Patent References:
| WO2015199164A1 | 2015-12-30 |
Foreign References:
| JP2016069647A | 2016-05-09 |
Attorney, Agent or Firm:
HARUKA PATENT & TRADEMARK ATTORNEYS (JP)
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