Polyurethane in intimate contact with fibrous material
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United States of America Patent
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-
Sep 11, 2007
Grant Date -
Sep 26, 2002
app pub date -
Mar 22, 2001
filing date -
Mar 22, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sprayable polymeric material and a process for preparing the material which contains a fibrous material, dispersed throughout the polymeric material. A restriction free spray nozzle is provided for mixing and spraying the polymeric material having a fibrous material, the nozzle having a restriction free check valve. A reinforced structure, and a method of making the structure are provided, the structure having layers of the polymeric material (both film and foam) containing the fibrous material. A flexible liner is provided of a porous geotextile fabric and a polyurethane composition comprising the fibrous material sprayed over the geotextile fabric.
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