公开(公告)号：US4230767A

公开(公告)日：1980-10-28

申请号：US10641

申请日：1979-02-08

申请人： Tsutomu Isaka ,  Maki Matsuo ,  Yukinobu Miyazaki

发明人： Tsutomu Isaka ,  Maki Matsuo ,  Yukinobu Miyazaki

IPC分类号： B32B27/32 ,  C09J123/14 ,  C09J123/20 ,  B32B31/16

CPC分类号： C09J123/142 ,  B32B27/32 ,  C09J123/20 ,  B29K2995/0022 ,  Y10T428/2826 ,  Y10T428/31902 ,  Y10T428/31913 ,  Y10T428/31938

摘要： A packaging material having an excellent seal packaging property, which comprises (A) a base layer consisting of a stretched film made of a polymer composition comprising a propylene polymer and (B) a surface layer consisting of a stretched film made of a polymeric mixture comprising a polymer blend provided on at least one surface of said base layer, said polymer blend comprising a copolymer of ethylene and propylene and a copolymer of butene and any other polymerizable monomer having an ethylenic unsaturation in a weight proportion of 5:95 to 95:5.

摘要翻译： 一种具有优异的密封封装性的包装材料，其包括（A）由包含丙烯聚合物的聚合物组合物制成的拉伸膜组成的基层和（B）由聚合物混合物制成的拉伸膜组成的表面层，所述拉伸膜包含 提供在所述基层的至少一个表面上的聚合物共混物，所述聚合物共混物包含乙烯和丙烯的共聚物和丁烯与任何其它可聚合单体的共聚物，其重量比例为5:95至95:5 。

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。