Rigid polyurethane foams for insulation and process for producing same
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United States of America Patent
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Nov 17, 2009
Grant Date -
Nov 27, 2003
app pub date -
May 23, 2002
filing date -
May 23, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rigid polyurethane foam having lose density without an increased k-factor can be produced by adding small amounts of butyl alcohol to a polyurethane composition containing an isocyanate, at least one polyol, a catalyst and a gaseous blowing agent.
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Cited Art Landscape
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