公开(公告)号：US5000889A

公开(公告)日：1991-03-19

申请号：US489030

申请日：1990-03-06

申请人： Akito Hamano ,  Katsuaki Kuze ,  Kunio Takeuchi ,  Maki Matsuo ,  Hajime Suzuki ,  Osamu Makimura ,  Eiichi Nagayasu

发明人： Akito Hamano ,  Katsuaki Kuze ,  Kunio Takeuchi ,  Maki Matsuo ,  Hajime Suzuki ,  Osamu Makimura ,  Eiichi Nagayasu

IPC分类号： B29C47/00 ,  B29C47/88 ,  B29C55/00

CPC分类号： B29C47/887 ,  B29C47/0021 ,  B29C47/8845 ,  B29C55/00

摘要： A process for preparing a polyamide type film which comprises melt-extruding a polyamide resin having a metal compound and a melt specific resistance of not more than 1.5.times.10.sup.5 .OMEGA.cm at 260.degree. C. in a form of a film, contacting the melt-extruded film closely with a revolving cooling drum through static electricity and taking up the film while cooling rapidly to solidify, which provides remarkable improved adhesion by static electricity. As a result, increasing the take-up rate of the revolving cooling drum does not cause trapping of air between the drum and the film so that a film having excellent uniformity in thickness and transparency can be produced.

摘要翻译： 一种制备聚酰胺型膜的方法，该方法包括在260℃熔融挤出具有金属化合物的聚酰胺树脂和熔体电阻率不超过1.5×10 5欧姆厘米的薄膜形式，使熔融挤出 通过静电与旋转冷却滚筒紧密接触，并在快速冷却下固化时吸收薄膜，这提供了显着改善的静电附着力。 结果，提高旋转冷却鼓的卷绕速度不会导致鼓和膜之间的空气的捕获，从而可以产生具有优异的厚度和透明度均匀性的膜。