| 发明名称 |
Wasserdampfdurchlässige Membran |
| 摘要 |
The invention relates to a method and device for producing a membrane or a sheet which is water vapour permeable but water impervious, and consequently air permeable. Said membrane is produced by elastic stretching of a polymer sheet which is perforated in its stretched condition, and then relieved after the perforating step.
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| 申请公布号 |
DE19812756(A1) |
申请公布日期 |
1999.10.07 |
| 申请号 |
DE19981012756 |
申请日期 |
1998.03.23 |
| 申请人 |
ITV - INSTITUT FUER TEXTIL- UND VERFAHRENSTECHNIK |
发明人 |
EHRLER, PETER;SCHERIEBLE, GEORG |
| 分类号 |
B26D7/14;B26F1/24;(IPC1-7):B29C37/00;B29C71/00;B29D7/01;B31B1/14;D04H1/00 |
主分类号 |
B26D7/14 |
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