Non-Halogen Flame Retardant Additives for Use in Rigid Polyurethane Foam
OwnerJeffrey K. Stowell, Lambertus A. De Kleine +3inventors
InventorsJeffrey K. Stowell, Lambertus A. De Kleine, Barbara A. Williams, Danielle A. Bright, Leslie Bright
Life of this patent
Estimating the term…
Abstract
Flame retarded polyurethane foams are produced by reacting a polyurethane foam-forming composition comprising polyol, organic isocyanate and at least one phosphate ester containing both alkyl and aryl group functionality.
Claims29
A flame retarded polyurethane foam composition comprising an effective flame retarding amount of at least one phosphate ester additive containing alkyl and aryl group functionality, said foam having an isocyanate index of at least about 100.
A process for making flame retarded polyurethane foam composition which comprises reacting a polyol with an organic isocyanate in the presence of an effective flame retarding amount of at least one phosphate ester additive containing both alkyl and aryl group functionality, wherein the index of organic isocyanate and polyol components is at least about 100.
Dependencies are inferred from the claim text.