Multilayered, surface-structured semi-finished product consisting of thermoplastics and film-structuring method
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United States of America Patent
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Mar 8, 2005
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N/A
app pub date -
Nov 15, 2002
filing date -
Nov 3, 1999
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Abstract
The invention relates to a multi-layered semi-finished product with at least one first and one second film layer. The semi-finished product has a velour-type structure on the outer surface of the first film layer facing away from the second film layer and the second layer has a filler material. The first and second film layers are permeable. A first proportion of a filler material in the first film layer is smaller than a second proportion of a filler in the second film layer.
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