Synergistic flame retardant blends for polyurethane foams
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United States of America Patent
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Issued Date -
Oct 6, 2005
app pub date -
May 20, 2005
filing date -
May 7, 2002
priority date (Note) -
Abandoned
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Abstract
1Flame-retardant blends are described that comprise: (a) a monomeric halogenated organic flame-retardant, which is adapted for use in a polyurethane foam formulation; and (b) an organic phosphate flame-retardant. The organic phosphate flame-retardant has the formula: where Ar is an aryl or an alkaryl group, R represents an alkylene or arylene group, and the average value of n is 0 to 5. In addition, an organic brominated additive can be selected in combination with the phosphate ester. These flame-retardants are incorporated into flexible polyurethane foams at various densities.
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