Process for preparing a flame-resistant, elastic soft polyurethane foam
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United States of America Patent
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Mar 9, 1993
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N/A
app pub date -
Mar 27, 1991
filing date -
Apr 3, 1990
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Abstract
A process for preparing a flame-resistant, elastic soft polyurethane foam includes admixing a portion of expanded graphite having a particle size of from 0.2 to 1 mm as a flame retardant and a portion of melamine, with a foam reaction mixture of polyol and polyisocyanate.
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