发明名称 STRETCHED FILM AND METHOD FOR MANUFACTURING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a stretched film capable of forming a polarizer layer by dyeing a resin layer for a suitable time to dye in a dyeing step in manufacturing a polarizing laminated film or a polarizing plate. <P>SOLUTION: The present invention relates to a stretched film comprising a base film and a resin layer which is formed on one surface of the base film and has a thickness of 10 &mu;m or less, wherein the resin layer is stretched and formed from a polyvinyl alcohol resin having a degree of saponification (mol%) and an average degree of polymerization satisfying the following expression (1) or (2): (1) 96 mol% < degree of saponification &le; 98 mol%, and (2) 93 mol% &le; degree of saponification &le; 96 mol% and average degree of polymerization &ge; 2500. <P>COPYRIGHT: (C)2013,JPO&INPIT
申请公布号 JP2013068804(A) 申请公布日期 2013.04.18
申请号 JP20110207456 申请日期 2011.09.22
申请人 SUMITOMO CHEMICAL CO LTD 发明人 TANAKA MASASHI
分类号 G02B5/30;B29C55/04;B29K29/00;B29L9/00;B32B27/30;G02F1/1335 主分类号 G02B5/30
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