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US 2005/0107500 A1Published application
Blend of organophosphorus flame retardant, lactone stabilizer, and phosphate compatibilizer
AssigneeSupresta U.S. LLC
InventorsBarbara Williams, Lambertus DeKleine
Life of this patent
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Abstract
A flame retardant blend, suitable for incorporation into a polyurethane foam, comprises: an oligomeric organophosphourus flame retardant, preferably an organophosphate, having a phosphorus content of no less than about 10%; a benzofuran-2-one stabilizer; and a monomeric phosphate ester containing alkyl and/or haloalkyl groups to act as a solubilizing addtive for the oligomeric organophosphorus flame retardant and benzofuran-2-one stabilizer.
Claims15
A flame retardant composition which comprises:
- a predominant amount of an organophosphorus flame retardant;
- a benzofuran-2-one stabilizer;
- and a monomeric phosphate ester compatibilizer.
A flame retardant composition which comprises:
- from about 80% to about 98%, by weight of an organophosphorus flame retardant;
- from about 0.05% to about 1.0%, by weight of a benzofuran-2-one stabilizer;
- and from about 1% to about 40%, by weight of a monomeric phosphate ester compatibilizer.
Dependencies are inferred from the claim text.