Title:
ACTINIC-RAY-CURABLE PRESSURE-SENSITIVE ADHESIVE SHEET, PRESSURE-SENSITIVE ADHESIVE SHEET LAMINATE WITH RELEASE FILM, LAMINATE FOR CONSTITUTING IMAGE DISPLAY DEVICE, IMAGE DISPLAY DEVICE, AND METHOD FOR PRODUCING LAMINATE FOR CONSTITUTING IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/054218
Kind Code:
A1
Abstract:
Proposed is a new actinic-ray-curable pressure-sensitive adhesive sheet which can have both excellent flowability and storage stability and which can exhibit such reliable freedom from bubble inclusion that the adhesive sheet does not come to include bubbles even when the adhesive sheet is laminated to an adherend and finally cured and the adherend thereafter changes dimensionally. The actinic-ray-curable pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer formed from a pressure-sensitive adhesive composition including a (meth)acrylic polymer (A). The actinic-ray-curable pressure-sensitive adhesive sheet, in a given holding-power test (500 gf after 40°C, 10 minutes), has a position shift less than 2 mm. The actinic-ray-curable pressure-sensitive adhesive sheet of 0.8-1.5 mm in thickness, before final curing, has a creep strain of 40-1,500% after standing at 25°C for 3,600 seconds and, after final curing performed under given curing conditions, has a creep strain of 10% or greater after standing at 80°C for 180 seconds.
Inventors:
HARADA YUUNA (JP)
NOZAWA DAIKI (JP)
NOZAWA DAIKI (JP)
Application Number:
PCT/JP2022/035563
Publication Date:
April 06, 2023
Filing Date:
September 26, 2022
Export Citation:
Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C09J7/38; C09J4/02; C09J133/04; G09F9/00
Domestic Patent References:
| WO2021199571A1 | 2021-10-07 | |||
| WO2022163281A1 | 2022-08-04 | |||
| WO2021131237A1 | 2021-07-01 | |||
| WO2021100381A1 | 2021-05-27 |
Foreign References:
| JP2021102790A | 2021-07-15 | |||
| JP2013185023A | 2013-09-19 | |||
| JP2017095658A | 2017-06-01 | |||
| JP2022053732A | 2022-04-06 |
Attorney, Agent or Firm:
ICHIZAWA, KAWADA & ASSOCIATES (JP)
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