基本信息:
- 专利标题： Biaxially Stretched Porous Film
- 申请号：US15520209 申请日：2015-11-17
- 公开(公告)号：US20170305061A1 公开(公告)日：2017-10-26
- 发明人： Vasily A. Topolkaraev , Ryan J. McEneany , Steven R. Stopper
- 申请人： Kimberly-Clark Worldwide, Inc.
- 国际申请： PCT/US2015/061081 WO 20151117
- 主分类号： B29C55/14
- IPC分类号： B29C55/14 ; B29C47/10 ; B29C47/00 ; B29C47/88 ; B29C47/40 ; B29K23/00 ; B29K463/00
摘要：
A film that comprises a thermoplastic composition that contains a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains is provided. The film is biaxially stretched in a machine direction and cross-machine direction to form a porous network in the composition. The porous network contains nanopores having a maximum cross-sectional dimension of about 800 nanometers or less. At least a portion of the nanopores are oriented in the cross-machine direction so that the axial dimension generally extends in the cross-machine direction and the cross-sectional dimension generally extends in the machine direction.
公开/授权文献:
- US11148347B2 Biaxially stretched porous film 公开/授权日：2021-10-19
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 |
| ------B29C55/00 | 用拉伸成型，如通过模子拉延；所用的设备 |
| --------B29C55/02 | .板材或片材的 |
| ----------B29C55/04 | ..单轴的，如斜轴的 |
| ------------B29C55/12 | ...双轴的 |
| --------------B29C55/14 | ....依次地 |