发明名称 MANUFACTURING METHOD FOR LAMINATED THERMOPLASTIC RESIN FILM, AND POLARIZING PLATE PROTECTION FILM OBTAINED THEREFROM
摘要 PROBLEM TO BE SOLVED: To provide a method of productively manufacturing a film that is thin and offers extremely small optical anisotropy and superior transparency and mechanical strength, a polarizing plate film obtained through the method, and a polarizing plate produced using the polarizing plate film.SOLUTION: A manufacturing method for a laminated thermoplastic resin film includes coextruding a layer (I) and a layer (II) containing different primary ingredients with the layer (II) placed on a face in contact with a nozzle, where the layer (I) and the layer (II) can be peeled from each other. After the layer (II) is peeled off, the layer (I) has a thickness of 50 μm or less, and in-plane retardation (R) and thickness retardation (R) of 10 nm or less.SELECTED DRAWING: None
申请公布号 JP2016053603(A) 申请公布日期 2016.04.14
申请号 JP20140178538 申请日期 2014.09.02
申请人 MITSUBISHI PLASTICS INC 发明人 ORIMO AKIKO;TANIGUCHI KOICHIRO;NISHIOKA JUN;MIYASHITA AKIRA;IKEDA KATSUSHI
分类号 G02B5/30;B29C47/06;G02F1/1335 主分类号 G02B5/30
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