Polyurethane coating system
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United States of America Patent
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N/A
Issued Date -
Apr 26, 2007
app pub date -
Oct 24, 2006
filing date -
Oct 24, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present invention relates to a method and apparatus for forming a layer of blown cellular polyurethane foam on a textile material, such as a carpet backing. The method includes applying to a textile material a layer of reactive polyurethane forming agents, heating the layer so as to cause chemical blowing of the mixture and applying to the layer during the chemical blowing thereof a thermal insulating blanket for a time sufficient to control the blowing of the mixture to a desired degree. Apparatus for performing the process is also disclosed.
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Cited Art Landscape
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