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公开(公告)号：EP1685187A1
公开(公告)日：2006-08-02
申请号：EP04790185.5
申请日：2004-10-08
申请人： Zimmer AG
发明人： EHRHARDT, Werner
IPC分类号： C08J5/18
CPC分类号： C08J5/18 , C08J2367/02
摘要： The invention relates to a method for producing PET films, according to which a poIyethylene terephthalate melt is transferred to a roller and the resultant film is drawn longitudinally. To produce the polyethylene terephthalate that is present in the melt, a branching agent is used in a concentration of between 50 to 300 ppm, in relation to the total weight of polyethylene terephthalate contained in the melt.
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