Title:
ADHESIVE SHEET
Document Type and Number:
WIPO Patent Application WO/2022/118499
Kind Code:
A1
Abstract:
Provided is an adhesive sheetwhich has a narrow range of delamination, which is capable of temporarily securing an adherend in a detachable manner, with which delamination can be carried out using low-power laser light, thus obviating the need for a step of rinsing the adherend after delamination. This adhesive sheet is an adhesive sheet that comprises an adhesive layer, and a transfer layer disposed on one side of the adhesive layer, wherein: the transfer layer is cured by active energy ray irradiation; the adhesive layer of the adhesive sheet has an adhesive strength I at 23°C, when attached to glass, of 2N/20 mm or more; and the ratio of the adhesive strength I at 23°C, when the adhesive layer of the adhesive sheet is attached to glass, to an adhesive strength B at 23°C after the transfer layer is irradiated with 300 mJ/cm2 UV rays, is 5 or more.
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Inventors:
ITO KATSUNORI (JP)
CHIBA MIZUHO (JP)
TACHIKAWA YU (JP)
CHIBA MIZUHO (JP)
TACHIKAWA YU (JP)
Application Number:
PCT/JP2021/029529
Publication Date:
June 09, 2022
Filing Date:
August 10, 2021
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B27/00; B32B7/06; C09J4/02; C09J7/38; C09J201/00
Domestic Patent References:
| WO2012157671A1 | 2012-11-22 | |||
| WO2016181741A1 | 2016-11-17 |
Foreign References:
| JP2012033637A | 2012-02-16 | |||
| JP2014205735A | 2014-10-30 | |||
| JP2002343747A | 2002-11-29 | |||
| JP2016134307A | 2016-07-25 |
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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