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发明申请
US20070045895A1 Process for producing synthetic resin film having molecular orientation controlled in MD direction 审中-公开
具有在MD方向控制的分子取向的合成树脂膜的制造方法

Process for producing synthetic resin film having molecular orientation controlled in MD direction
摘要：
It is an object of the present invention to provide a stable process for continuously producing a synthetic resin film oriented in the machine direction across the full width. The present invention provides a process for producing a synthetic resin film including step (A) of casting and applying a composition containing a polymer and an organic solvent onto a support to form a gel film; step (B) of stripping the gel film and heating the gel film with both ends being fixed; and step (C) of heating the film with both ends being released after step (B), wherein the thickness b of the film produced in step (B) and the thickness c of the film produced in step (C) satisfy the relationship: b>c.
摘要（中）：

本发明的目的是提供一种用于在整个宽度上连续生产沿机器方向取向的合成树脂薄膜的稳定方法。 本发明提供一种制造合成树脂薄膜的方法，该方法包括将含有聚合物和有机溶剂的组合物浇铸和涂布到载体上以形成凝胶膜的步骤（A） 步骤（B）剥离凝胶膜并加热两端固定的凝胶膜; 以及步骤（B）中两端被剥离的步骤（C），其中步骤（B）中制备的膜的厚度b和步骤（C）中制备的膜的厚度c满足以下关系： <？in-line-formula description =“In-line Formulas”end =“lead”？> b> c。 <？in-line-formula description =“In-line Formulas”end =“tail”？>

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