Flame retardant composition and polyurethane foam containing same

摘要

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.