Patent ID: 8320042
Filing Date: 2012-11-27
Classification: B29C,B29D,B29K,C09K,G02B,G02F,H01L,Y10T

Abstract:
1. A stretched laminate for manufacturing an optical film laminating including a polarizing film, said stretched laminate comprising: a non-crystallizable ester type thermoplastic resin substrate and a layer of a polyvinyl alcohol type resin formed on the non-crystallizable ester type thermoplastic resin substrate, said non-crystallizable ester type thermoplastic resin substrate comprises a preliminarily in-air stretched non-crystallizable polyethylene terephthalate having an orientation function of 0.10 or less, and said polyvinyl alcohol type resin having a degree of crystallization in a range between 27% to 40% and an orientation function in a range between 0.05 and 0.35.