Extrusion coating process
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United States of America Patent
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Nov 11, 2003
Grant Date -
N/A
app pub date -
Sep 27, 2000
filing date -
Sep 27, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for the preparation of a laminate, particularly a waterproof moisture vapor permeable laminate, comprising a substrate having on a surface thereof a thermoplastic polymer resin coating and further comprising a peelable release layer in contact with the surface of said thermoplastic polymer resin remote from the substrate, and optionally further comprising a tie layer between the substrate and the thermoplastic polymer resin, said process comprising the steps of forming or providing a substrate layer and providing on a surface thereof a thermoplastic polymer resin coating and a peelable release layer and optionally providing a tie layer between the substrate and the thermoplastic polymer resin coating, characterized in that the thermoplastic polymer resin has a viscosity less than about 3000 Pa.s measured according to the standard ISO11443.
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