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1. (WO2018079563) LAMINATED FILM AND PRODUCTION METHOD THEREFORE, POLARIZATION PLATE, AND DISPLAY DEVICE

Pub. No.:    WO/2018/079563    International Application No.:    PCT/JP2017/038397
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Wed Oct 25 01:59:59 CEST 2017
IPC: B32B 27/30
B32B 7/02
B32B 27/00
G02B 5/30
Applicants: ZEON CORPORATION
日本ゼオン株式会社
Inventors: SUDEJI, Hironari
摺出寺 浩成
Title: LAMINATED FILM AND PRODUCTION METHOD THEREFORE, POLARIZATION PLATE, AND DISPLAY DEVICE
Abstract:
The present invention pertains to a laminated film including an A-layer composed of a thermoplastic resin A and a B-layer composed of a thermoplastic resin B, wherein the resin A comprises a hydrogenated block copolymer that contains: two or more polymer blocks consisting primarily of a specific unit [I]; and one or more polymer blocks consisting primarily of either a specific unit [II] or a combination of the unit [I] and the unit [II], wherein the heat softening temperature of the resin A, the heat softening temperature of the resin B, the thickness of the A-layer, the thickness of the B-layer, retardation in the in-plane direction of the laminated film, and the planar orientation coefficient of the B-layer respectively fulfill specific requirements.