| US 7,601,658 B2 | ||
| Elastic laminate | ||
| Andreas Hagemann, Rhede (Germany); Ralf Niepelt, Gronau (Germany); Henner Sollmann, Bad Bentheim (Germany); and Georg Baldauf, Laer (Germany) | ||
| Assigned to Nordenia Deutschalnd Gronau GmbH, Gronau (Germany) | ||
| Appl. No. 11/632,925 PCT Filed Jul. 20, 2005, PCT No. PCT/EP2005/007917 § 371(c)(1), (2), (4) Date Apr. 12, 2007, PCT Pub. No. WO2006/008149, PCT Pub. Date Jan. 26, 2006. |
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| Claims priority of application No. 10 2004 035 396 (DE), filed on Jul. 21, 2004. | ||
| Prior Publication US 2008/0038983 A1, Feb. 14, 2008 | ||
| Int. Cl. D04H 1/00 (2006.01); D04H 13/00 (2006.01); D04H 3/00 (2006.01); D04H 5/00 (2006.01) | ||
| U.S. Cl. 442—328 [442/62; 442/104; 442/105; 442/381] | 11 Claims |
| 1. Elastic laminate comprising a co-extruded elastic film that has an elastomer support layer and at least one cover layer,
and
at least one textile outer layer made of a nonwoven, whereby the cover layer has a low layer thickness in comparison with the support layer, and the outer layer is laminated onto
the cover layer, wherein the cover layer comprises an elastomer material, which possesses a marked elastic component after
tensile stress at room temperature, just like the elastomer support layer, in contrast to thermoplastics, and contains additives
for modifying the surface properties, wherein the elastomer material for the cover layer and the support layer consists of
a thermoplastic elastomer from the group of block copolymers, elastomer polyuretharies, or mixtures of these elastomers and
wherein the nonwoven material of the outer layer comprises non-elastomer fibers that have a significant permanent deformation
after stretching, and wherein the outer layer has a stretchable region that has been produced by means of crosswise stretching
of the laminate in a meander-shaped roller nip between two profile rollers that engage into one another.
|