Process for making flexible polyurethane foams
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United States of America Patent
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Mar 28, 2000
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N/A
app pub date -
Nov 4, 1997
filing date -
Nov 8, 1996
priority date (Note) -
Expired
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Abstract
Process for preparing rigid and flexible polyurethane foams by reacting a polyisocyanate and a polyol in the presence of water and CO.sub.2. The foams obtained do not show a major glass transition temperature between -100.degree. C. and +25.degree. C. and have improved air flow properties.
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