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1. (WO2013146644) LAMINATE FILM, METHOD FOR PRODUCING POLARIZING LAMINATE FILM, AND METHOD FOR PRODUCING POLARIZING PLATE

Pub. No.:    WO/2013/146644    International Application No.:    PCT/JP2013/058510
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Tue Mar 26 00:59:59 CET 2013
IPC: B32B 27/30
B29C 55/02
G02B 5/30
Applicants: SUMITOMO CHEMICAL COMPANY, LIMITED
住友化学株式会社
Inventors: KAWAMURA, Shinichi
河村 真一
KAWASAKI, Kaoru
川▲崎▼ 薫
Title: LAMINATE FILM, METHOD FOR PRODUCING POLARIZING LAMINATE FILM, AND METHOD FOR PRODUCING POLARIZING PLATE
Abstract:
Provided are: a laminate film provided with a substrate film, which comprises a thermoplastic resin, and a polyvinyl alcohol resin layer formed by means of coating onto at least one surface of the substrate film, the substrate film having a tensile elasticity at 80°C of at least 140 MPa; a polarizing laminate film using the laminate film; and a method for producing a polarizing plate. Preferably, of the substrate film, the surface layer of at least the surface to which the polyvinyl alcohol resin film has been formed is configured from a crystalline thermoplastic resin having a crystallinity of at least 58%.