基本信息:
- 专利标题： METHOD OF PRODUCING MICROPOROUS PLASTIC FILM
- 申请号：US15551876 申请日：2016-01-22
- 公开(公告)号：US20180065289A1 公开(公告)日：2018-03-08
- 发明人： Takashi Ichinomiya , Masami Sugata , Masato Okuno
- 申请人： Toray Industries, Inc.
- 优先权： JP2015-031392 20150220
- 国际申请： PCT/JP2016/051780 WO 20160122
- 主分类号： B29C47/14
- IPC分类号： B29C47/14 ; B29C47/00 ; B29C47/88 ; B29C55/04 ; B29C55/12 ; B29C67/20 ; H01M2/18 ; H01M10/0525
摘要：
A method of producing a microporous plastic film includes kneading a diluent and a polyolefin resin with an extruder; discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape; cooling and solidifying the sheet discharged from the die lip on a drum; reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction; cooling the sheet drawn in the sheet conveying direction; gripping both ends of the sheet with clips; introducing the sheet into a tenter; and washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film, wherein the sheet is drawn in two or more sections having substantively the same draw ratio between the rollers.
IPC结构图谱:
| B | 作业；运输 |
| --B29 | 塑料的加工；一般处于塑性状态物质的加工 |
| ----B29C | 塑料的成型或连接；塑性状态物质的一般成型；已成型产品的后处理，如修整 |
| ------B29C47/00 | 挤出成型，即挤出成型材料通过模子或喷嘴，模子或喷嘴给出要求的形状；所用的设备 |
| --------B29C47/04 | .多层的或多色的制品的 |
| ----------B29C47/12 | ..挤出喷嘴或模口 |
| ------------B29C47/14 | ...有宽口的，如用于板材 |