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1. (WO2018079627) OPTICAL FILM, PRODUCTION METHOD AND MULTILAYER FILM

Pub. No.:    WO/2018/079627    International Application No.:    PCT/JP2017/038580
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Thu Oct 26 01:59:59 CEST 2017
IPC: B32B 27/00
B32B 27/40
C09D 5/00
C09D 175/04
C09J 7/20
C09J 175/04
B05D 7/04
B05D 7/24
C08G 61/08
Applicants: ZEON CORPORATION
日本ゼオン株式会社
Inventors: KOMOTO, Sogo
幸本 壮悟
Title: OPTICAL FILM, PRODUCTION METHOD AND MULTILAYER FILM
Abstract:
An optical film which comprises a first layer and a highly adhesive layer that is provided on at least one surface of the first layer, and wherein: the first layer is a layer of a crystallized resin that contains an alicyclic structure-containing polymer; and the highly adhesive layer is a layer of a urethane resin. A method for producing an optical film, which comprises: a step (1) wherein a crystalline resin film having a crystallinity of less than 3% is obtained by molding a crystalline resin that contains an alicyclic structure-containing polymer; a step (2) wherein a highly adhesive layer is formed on the surface of the crystalline resin film, thereby obtaining a multilayer product that comprises the crystalline resin film and the highly adhesive layer; and a step (4) wherein the crystalline resin film in the multilayer product is crystallized.