Method for preparing a flexible polyurethane foam
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United States of America Patent
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Mar 5, 1991
Grant Date -
N/A
app pub date -
Apr 14, 1989
filing date -
Jun 28, 1988
priority date (Note) -
Expired
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Abstract
A method for preparing a flexible polyurethane foam, wherein a polyether-polyol having an average molecular weight from 1000 to 8000 and an average functionality not larger than 4, is brought into reaction with an organic polyisocyanate in the presence of a foam stabilizer, a catalyst and blowing agent comprising methylformate, wherein a cross-linker/extender and/or amine catalyst with delayed action is added to said reaction mixture.
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