| 摘要 |
<p>Provided are liquid flame retardant additive compositions fo low viscosity for use in flexible polyurethane foams. Preferred compositions are capable of minimizing, if not eliminating, visible scorching of the foam during its production. Flexible flame retardant polyurethane foams, and methods for their production are also provided. The flame retardant additive compositions are formed at least from a) at least one brominated aromatic diester diol; b) at least one substituted triphenylphosphate in which on average at least one phenyl group has an alkyl substituent; c) at least one hindered amine antioxidant; and d) at least one phenolic antioxidant in which the phenolic ring is substituted by an alkanoic acid alkyl ester group in which alkanoic acid moiety has in the range of 2 to 4 carbon atoms and the alkyl group has in the range of 6 to 16 carbon atoms.</p> |
