Invention Application
- Patent Title: FLEXIBLE WATER-RESISTANT COMPOSITES
- Patent Title (中): 柔性耐水复合材料
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Application No.: PCT/EP1997003339Application Date: 1997-06-25
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Publication No.: WO1997049553A1Publication Date: 1997-12-31
- Inventor: W.L. GORE & ASSOCIATES GMBH
- Applicant: W.L. GORE & ASSOCIATES GMBH , ZEHNDER, Wolfgang
- Assignee: W.L. GORE & ASSOCIATES GMBH,ZEHNDER, Wolfgang
- Current Assignee: W.L. GORE & ASSOCIATES GMBH,ZEHNDER, Wolfgang
- Priority: DE196 19960625
- Main IPC: B32B27/08
- IPC: B32B27/08
Abstract:
This invention provides air impermeable liquid-water resistant water-vapor-permeable composites that have enhanced water-vapor-permeable properties. The composites comprise: a layer of a microporous polymer that is water-vapor permeable and which is liquid water-resistant. This layer is in contact with an air-impermeable, liquid water resistant, polymer layer that is permeable to water-vapor molecules. A third layer of a microporous, water vapor permeable, hydrophilic polymer is present on the other side of the air-impermeable polymer layer.
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