| US 7,501,362 B2 | ||
| Nonwoven composite element | ||
| Walter Maier, Wachenheim (Germany) | ||
| Assigned to Quadrant Plastic Composites AG, Lenzburg (Switzerland) | ||
| Appl. No. 10/555,620 PCT Filed Mar. 24, 2004, PCT No. PCT/EP2004/003095 § 371(c)(1), (2), (4) Date Oct. 20, 2006, PCT Pub. No. WO2004/098879, PCT Pub. Date Nov. 18, 2004. |
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| Claims priority of application No. 103 19 967 (DE), filed on May 05, 2003. | ||
| Prior Publication US 2007/0032159 A1, Feb. 08, 2007 | ||
| Int. Cl. B32B 27/12 (2006.01); B32B 27/32 (2006.01); D04H 1/46 (2006.01) | ||
| U.S. Cl. 442—394 [442/398; 442/402] | 9 Claims |
| 1. A nonwoven composite element, containing
A. a blended fiber nonwoven comprising thermoplastic fibers and higher melting reinforcing fibers, which is adherently joined
at one or both sides thereof to
B. one or two composite foils of a thermoplastic material, characterized in that the foil(s) B is a composite foil with the
structure ba or bab, wherein a is a higher melting thermoplastic material, selected from a polyamide, a polyester and a polyurethane,
and wherein b is a lower melting thermoplastic material, selected from polyethylene or polypropylene, and wherein layer b
of the composite foil(s) faces the blended fiber nonwoven, and wherein the thickness of the composite foil(s) is between 50
and 200 μm.
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