| 发明名称 |
Smooth-surfaced nonwoven fabric |
| 摘要 |
A nonwoven fabric having a smooth surface, especially for use as support material for semipermeable membranes, comprising a support mat into which at least one surface thereof, an open-structured, continuous covering layer of fine, thermoplastic particles is calendered.
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| 申请公布号 |
US4180611(A) |
申请公布日期 |
1979.12.25 |
| 申请号 |
US19770856564 |
申请日期 |
1977.12.01 |
| 申请人 |
FREUDENBERG, CARL FIRMA |
发明人 |
SCHMIDT, KLAUS;SCHULTHEISS, WOLFRAM |
| 分类号 |
D04H1/58;B01B;B01D63/00;B01D69/10;B32B3/10;B32B5/16;B32B27/02;D01F8/18;D01F9/08;D04H;D04H1/00;D04H1/44;D04H1/54;D04H3/03;D04H13/00;(IPC1-7):B32B5/16 |
主分类号 |
D04H1/58 |
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