Title:
OPTICAL FILM, POLARIZING PLATE AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/248919
Kind Code:
A1
Abstract:
The present invention provides, inter alia, an optical film that is provided with excellent low moisture permeability, as well as surface harness, low curling tendency, and bending resistance. Provided is an optical film comprising a cured film of a curable resin composition on at least one surface of a transparent substrate, the curable resin composition containing a compound (A) that has two or more reactive functional groups in each molecule and has one or more alicyclic hydrocarbons or aromatic rings in each molecule, a compound (B) that has one or more reactive functional groups in each molecule and one or more bromine atoms in each molecule, a compound (C) that has three or more reactive functional groups in each molecule, and a photopolymerization initiator (D), the reactive functional groups of compounds (A) through (C) being any of a (meth)acryloyl group, an epoxy group, and an oxetanyl group, the content ratio of compound (A) in the total solid content of the curable resin composition being 30-60% by mass, the content ratio of compound (B) therein being 30-60% by mas, and the content ratio of compound (C) therein being 10-25% by mass, and the thickness of the cured film being 3-20 µm.
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Inventors:
ARAYA YUSUKE
KIM KEON
KIM KEON
Application Number:
PCT/JP2023/022239
Publication Date:
December 28, 2023
Filing Date:
June 15, 2023
Export Citation:
Assignee:
TOPPAN TOMOEGAWA OPTICAL FILMS CO LTD (JP)
International Classes:
G02B5/30; B32B27/30; G09F9/00
Foreign References:
| JP2008518280A | 2008-05-29 | |||
| JP2008535944A | 2008-09-04 | |||
| US20090219461A1 | 2009-09-03 |
Attorney, Agent or Firm:
OGASAWARA PATENT OFFICE (JP)
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