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OwnerWilliam R. Brown, Elbert F. Feske +1inventors
InventorsWilliam R. Brown, Elbert F. Feske, Arthur G. Mack
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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 about 4 carbon atoms and the alkyl group has in the range of about 6 to about 16 carbon atoms.
A liquid flame retardant additive composition which comprises a liquid mixture formed from at least the following components or ingredients:
A method of producing a flexible polyurethane foam composition of the type formed from isocyanate and polyol, which method comprises (A) including in a polymerization formulation:
A flame retardant flexible polyurethane foam formed from components or ingredients comprising isocyanate, polyol, surfactant, catalyst, and blowing agent, wherein the components or ingredients used in forming said polyurethane foam are further comprised of:
Dependencies are inferred from the claim text.