Abstract: Neopentyl glycol bis(diphenyl phosphate) liquid compositions are described that comprise from about 75% to about 90%, by weight, of neopentyl glycol bis(diphenyl phosphate), less than about 5% by weight of cyclic product, less than about 8% by weight of triphenyl phosphate, and with a P3 content of no less than about 1%, by weight. These compositions are made by continuously adding neopentyl glycol to a diaryl chlorophosphate mixture at elevated temperature, under vacuum, and in the presence of a catalyst.

Abstract: The hydrolytic stability of a polycarbonate-containing resin composition, which comprises an arylene-bridged oligomeric phosphate flame retardant can be improved by the addition of an effective amount of a neopentylglycol bis(diphenyl phosphate) flame retardant for such hydrolytic stability improvement.

Abstract: A flame retardant composition especially useful for imparting flame retardancy to polyurethane foams includes: a) major amount by weight of at least one phosphate ester flame retardant of the formula: wherein n is 0 or 1 to about R1, R2, R3 and R4 each independently is a non-halogenated or halogenated alkyl or aryl group, and R5 is a non-halogenated or halogenated alkylene or arylene group, provided, that when n is 1 to about 10, at least one of R1, R2, R3, R4 and R5 is substituted with at least one halogen atom; and, b) a minor amount by weight of melamine.

Abstract: A phosphate ester composition of low acidity achieved by treating the phosphate ester of high acidity with an oxetane compound. The phosphate ester can be represented by the formula (I), where Ar is an aryl or alkaryl group, R is an arylene or alkylene group, and n can range from to 0 to about 5.

Abstract: Flame-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.

Abstract: A flame retardant composition especially useful for imparting flame retardancy to polyurethane foams includes: a) major amount by weight of at least one phosphate ester flame retardant of the formula: wherein n is 0 or 1 to about R1, R2, R3 and R4 each independently is a non-halogenated or halogenated alkyl or aryl group, and R5 is a non-halogenated or halogenated alkylene or arylene group, provided, that when n is 1 to about 10, at least one of R1, R2, R3, R4 and R5 is substituted with at least one halogen atom; and, b) a minor amount by weight of melamine.

Abstract: Non-halogen, flame-retardant polyurethane foam compositions having reduced discoloration or scorch during their manufacture contain an effective amount of a flame retardant of the formula: where Ar is an aryl or an alkaryl group, R is neopentylene, and the average value of n is 1 to 10.