基本信息:
- 专利标题： Apertured film and net like fabrics from thermoplastic materials
- 专利标题（中）：热塑性材料制成的薄膜和网状织物
- 申请号：EP88112394.7 申请日：1988-07-29
- 公开(公告)号：EP0301599A3 公开(公告)日：1990-08-08
- 发明人： Hovis, Edward E. , Johnson, Eric D.
- 申请人： APPLIED EXTRUSION TECHNOLOGIES, INC.
- 申请人地址： Middletown Delaware US
- 专利权人： APPLIED EXTRUSION TECHNOLOGIES, INC.
- 当前专利权人： APPLIED EXTRUSION TECHNOLOGIES, INC.
- 当前专利权人地址： Middletown Delaware US
- 代理机构： Wagner, Karl H., Dipl.-Ing.
- 优先权： US79502 19870730
- 主分类号： B29D28/00
- IPC分类号： B29D28/00
摘要：
A method of making apertured films includes the step of perforationg films of thermoplastic materials with embossing rolls engraved with patterns which form small slits or incipient slits in the sheet. The patterns are such that the design on the roll includes lands, or raised areas, which cross lands of the opposing roll at an acute angle. The perforated or partially perforated film formed may then be further processed by orientation, uniaxial or biaxial, simultaneous or sequential; by heat treatment; or both to modify the porosity, hole size, or other properties as desired.
公开/授权文献:
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 |
| ----B29D | 用塑料或用塑性状态的物质生产特殊制品 |
| ------B29D28/00 | 生产网或类似物 |