公开(公告)号：EP0650818A3

公开(公告)日：1995-06-14

申请号：EP94116698.5

申请日：1994-10-22

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Masuda, Kazuhiko ,  Yokote, Sachio ,  Odaira, Yukio ,  Inoue, Norihide

IPC分类号： B29C47/00 ,  B29C47/88

CPC分类号： B29C47/8825 ,  B29C47/0004 ,  B29C47/0026 ,  B29C47/0057 ,  B29D7/01 ,  B29K2023/12 ,  B29K2995/0026

摘要： Described is a film forming method for a polypropylene resin composition, which comprises subjecting a polypropylene resin composition composed of 5 to 95 parts by weight of a syndiotactic polypropylene and 95 to 5 parts by weight of an isotactic polypropylene to air-cooled tubular film extrusion. By the air-cooled method which has heretofore had difficulty in obtaining a highly-transparent film from conventional isotactic polypropylene, a film having excellent transparency can be obtained.

公开(公告)号：EP0650818A2

公开(公告)日：1995-05-03

申请号：EP94116698.5

申请日：1994-10-22

申请人： MITSUI TOATSU CHEMICALS, Inc.

发明人： Masuda, Kazuhiko ,  Yokote, Sachio ,  Odaira, Yukio ,  Inoue, Norihide

IPC分类号： B29C47/00 ,  B29C47/88

CPC分类号： B29C47/8825 ,  B29C47/0004 ,  B29C47/0026 ,  B29C47/0057 ,  B29D7/01 ,  B29K2023/12 ,  B29K2995/0026

摘要： Described is a film forming method for a polypropylene resin composition, which comprises subjecting a polypropylene resin composition composed of 5 to 95 parts by weight of a syndiotactic polypropylene and 95 to 5 parts by weight of an isotactic polypropylene to air-cooled tubular film extrusion. By the air-cooled method which has heretofore had difficulty in obtaining a highly-transparent film from conventional isotactic polypropylene, a film having excellent transparency can be obtained.

摘要翻译： 描述了一种用于聚丙烯树脂组合物的成膜方法，其包括将由5-95重量份的间同立构聚丙烯组成的聚丙烯树脂组合物和95-5重量份的全同立构聚丙烯进行风冷管状膜挤出。 通过迄今为止难以从常规的全同立构聚丙烯获得高透明膜的空气冷却方法，可以获得具有优异透明性的膜。