Title:
ADHESIVE SHEET AND OPTICAL LAYERED PRODUCT
Document Type and Number:
WIPO Patent Application WO/2024/019159
Kind Code:
A1
Abstract:
The present invention provides an adhesive sheet which is formed from a photocurable composition and which is suitable for increasing the value of anchoring strength to an optical film. This adhesive sheet 1 is formed from a photocurable composition containing a monomer group and/or a partial polymer of said monomer group. The blending quantity of an isocyanate-based crosslinking agent in the photocurable composition is less than 0.05 parts by weight relative to a total of 100 parts by weight of the monomer group and partial polymer thereof. In the adhesive sheet 1, the monomer group includes an ether group-containing monomer, and the blending quantity of said ether group-containing monomer is 25 parts by weight or more relative to 100 parts by weight of the monomer group. In a case where a polymer is synthesized from the monomer group, the glass transition temperature of said polymer, as calculated from the Fox equation, is higher than -60ºC.
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Inventors:
MISHIMA TAKEHIKO (JP)
KIMURA TOMOYUKI (JP)
KATAMI HIROFUMI (JP)
KIMURA TOMOYUKI (JP)
KATAMI HIROFUMI (JP)
Application Number:
PCT/JP2023/026820
Publication Date:
January 25, 2024
Filing Date:
July 21, 2023
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
C09J7/38; B32B7/023; B32B27/00; B32B27/40; C09J4/02; C09J133/14; C09J175/04; C09J201/06; G02B5/30; H05B33/02; H10K50/10; H10K59/00
Domestic Patent References:
| WO2019065375A1 | 2019-04-04 |
Foreign References:
| JP2013129813A | 2013-07-04 | |||
| JP2018022135A | 2018-02-08 | |||
| JP2020101814A | 2020-07-02 |
Attorney, Agent or Firm:
KAMADA Koichi et al. (JP)
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