Title:
ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2021/200786
Kind Code:
A1
Abstract:
This adhesive sheet comprises a substrate and an adhesive layer, the substrate not containing chlorine atoms. When a reference direction is any one direction in plan view of the substrate, and a first measurement direction is a direction in which the amount of rise of tensile stress, obtained by subtracting the tensile stress at 100% elongation from the tensile stress at 200% elongation, is smallest among a total of 18 directions in which an angle formed with the reference direction in plan view is 0°, 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, and 170°, then all tensile stresses from 10% elongation to 100% elongation in the first measurement direction are in a range of 8-30 MPa, and all tensile stresses from 100% elongation to 200% elongation in the first measurement direction are in a range of 10-40 MPa. The adhesive sheet has excellent expandability.
Inventors:
SASAKI HARUKA (JP)
KAWADA SATOSHI (JP)
KAWAHARADA YUKI (JP)
KAWADA SATOSHI (JP)
KAWAHARADA YUKI (JP)
Application Number:
PCT/JP2021/013190
Publication Date:
October 07, 2021
Filing Date:
March 29, 2021
Export Citation:
Assignee:
LINTEC CORP (JP)
International Classes:
H01L21/301; C08G63/199; C09J7/25; C09J7/38
Domestic Patent References:
| WO2018003312A1 | 2018-01-04 |
Foreign References:
| JP2011165761A | 2011-08-25 | |||
| JP2011155191A | 2011-08-11 | |||
| JP2011232767A | 2011-11-17 | |||
| JP2011173851A | 2011-09-08 | |||
| JP2016069600A | 2016-05-09 | |||
| JP2021050319A | 2021-04-01 |
Attorney, Agent or Firm:
HAYAKAWA Yuzi et al. (JP)
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