FLEXIBLE WATER AND OIL RESISTANT COMPOSITES, PRODUCING THEREOF AND APPAREL INCLUDING SAID COMPOSITES
This invention provides air impermeable liquid-water resistant water-vapor-permeable composites that are highly oleophobic and some of which have enhanced water-vapor-permeable properties. In its broadest aspect, the composites comprise: a layer of a microporous polymer that is water-vapor permeable...
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| creator | BUERGER, WOLFGANG VON FRAGSTEIN, RAINER STEFFL, RUDOLF ZEHNDER, WOLFGANG |
| description | This invention provides air impermeable liquid-water resistant water-vapor-permeable composites that are highly oleophobic and some of which have enhanced water-vapor-permeable properties. In its broadest aspect, the composites comprise: a layer of a microporous polymer that is water-vapor permeable and which is oleophobic, 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. The oleophobic microporous polymer layer confers enhanced oleophobicity. In another aspect, a third layer of a microporous, water vapor permeable polymer can also be present on the other side of the air-impermeable polymer layer. |
| format | Patent |
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| subjects | ACCESSORIES FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR HUMAN NECESSITIES LAUNDERING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM OUTERWEAR PERFORMING OPERATIONS PROTECTIVE GARMENTS TEXTILES TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL WEARING APPAREL |
| title | FLEXIBLE WATER AND OIL RESISTANT COMPOSITES, PRODUCING THEREOF AND APPAREL INCLUDING SAID COMPOSITES |
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