Method for producing long obliquely stretched film

专利名称：Method for producing long obliquely

stretched film

发明人：Motohiro Itadani,Takashi Sato申请号：US12085595申请日：20061128公开号：US08208105B2公开日：20120626

专利附图：

摘要：A long obliquely stretched film is obtained having an orientation axis in adirection with an angle θs of 10° or more and 85° or less from a width direction bygrasping both side ends in the width direction of a longitudinally stretched film with an

average retardation Reby grasping means; stretching the film under a condition that along obliquely stretched film sample with an average retardation Re(Reis smaller thanRe) can be obtained and traveling speeds of the grasping means are substantially equalat the film both side ends through a preheating zone, a stretching zone and a fixing zone;releasing the both side ends of the film from the grasping means; and taking it up arounda winding core.

申请人：Motohiro Itadani,Takashi Sato

地址：Tokyo JP,Tokyo JP

国籍：JP,JP

代理机构：Birch, Stewart, Kolasch & Birch, LLP

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