Title:
OPTICAL LAMINATE
Document Type and Number:
WIPO Patent Application WO/2024/070440
Kind Code:
A1
Abstract:
(Abstract) (Problem) To provide an optical laminate in which a release film can be satisfactorily released from an adhesive layer. (Solution) This optical laminate includes an optical film, an adhesive layer, and a release film in the stated order. The release film has a release treatment surface containing a siloxane compound on a side where the release film makes contact with the adhesive layer. The release treatment surface of the release film satisfies the relationship indicated by formula (1). (1): Ys/Xs × 100 ≤ 3.5 [In formula (1), Xs represents the intensity of the maximum peak Ps in a binding energy range of 96-108 eV of an XPS spectrum (Sr) of the release treatment surface, and Ys represents the intensity of the XPS spectrum (Sr) at a binding energy of (Es + 2) eV, when the binding energy at the peak PS is Es [eV].] (Selected figure) FIG. 1
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Inventors:
SAKAGUCHI TETSUO (JP)
SASE MITSUTAKA (JP)
NAKANISHI YUSUKE (JP)
SEKI KAZUMASA (JP)
LEE SEUNGWOO (JP)
NISHIKAMI YUKI (JP)
SASE MITSUTAKA (JP)
NAKANISHI YUSUKE (JP)
SEKI KAZUMASA (JP)
LEE SEUNGWOO (JP)
NISHIKAMI YUKI (JP)
Application Number:
PCT/JP2023/031427
Publication Date:
April 04, 2024
Filing Date:
August 30, 2023
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; B32B7/023; B32B27/00; C09J7/38; C09J7/40; C09J201/00
Domestic Patent References:
| WO2017018135A1 | 2017-02-02 |
Foreign References:
| JP2019056101A | 2019-04-11 | |||
| JP2012179888A | 2012-09-20 | |||
| CN104085139A | 2014-10-08 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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