Title:
LAYERED OPTICAL FILM
Document Type and Number:
WIPO Patent Application WO/2022/230978
Kind Code:
A1
Abstract:
A layered optical film (X) according to the present invention comprises an optical film (10), optical films (21, 22), and adhesive layers (31, 32). The adhesive layer (31) is joined to the optical film (10), and is joined to the optical film (21). The adhesive layer (32) is joined to the optical film (10), and is joined to the optical film (22). The indentation modulus E1 at 25°C of the adhesive layer (31) and the indentation modulus E2 at 25°C of the adhesive layer (32) satisfy 0.3≤E2/E1<1.
Inventors:
SASAGAWA TAISUKE (JP)
Application Number:
PCT/JP2022/019294
Publication Date:
November 03, 2022
Filing Date:
April 28, 2022
Export Citation:
Assignee:
NITTO DENKO CORP (JP)
International Classes:
B32B27/00; B32B7/022; B32B7/023; B32B7/12; C09J201/00; G02B5/30
Domestic Patent References:
| WO2016136509A1 | 2016-09-01 | |||
| WO2019026760A1 | 2019-02-07 |
Foreign References:
| JP2017062517A | 2017-03-30 | |||
| JP2017181788A | 2017-10-05 | |||
| JP2020160197A | 2020-10-01 |
Attorney, Agent or Firm:
OKAMOTO, Hiroyuki et al. (JP)
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