发明授权
EP2502954B1 POLYCARBONATE RESIN FILM, TRANSPARENT FILM, AND PROCESS FOR PRODUCING SAME 有权
聚碳酸酯树脂膜,透明膜和生产该膜的方法

POLYCARBONATE RESIN FILM, TRANSPARENT FILM, AND PROCESS FOR PRODUCING SAME
摘要:
An object of the present invention is to provide a polycarbonate resin film which contains a constitutional unit derived from a specific dihydroxy compound and is excellent in mechanical strength and thickness evenness and a process for producing a transparent film. The polycarbonate resin film of the present invention is formed from a polycarbonate resin which contains at least a constitutional unit derived from a dihydroxy compound having a bonded structure represented by the following structural formula (1) and satisfies the following expression (2) when subjected to a tensile test at a standard stretching temperature for the polycarbonate resin and at a pulling speed (strain rate) of 1,000%/min. (No hydrogen atom is bonded to the oxygen atom contained in the structural formula (1).) 0.9 ‰¤ lower yield stress in tension / upper yield stress in tension ‰¤ 1
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