Provided are new flame retardants and liquid flame retardant additive compositions of low viscosity for use in flexible polyurethane foams. The new flame retardants are the reaction product of at least one brominated aromatic diester diol with at least one alcohol-reactive agent. Preferred liquid flame retardant additive compositions are capable of minimizing 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 reaction product of a brominated aromatic diester diol and an alcohol-reactive agent; b) at least one hindered amine antioxidant; and c) 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.
本文提供了用于软质聚
氨酯泡沫的新型阻燃剂和低粘度液体阻燃添加剂组合物。新型阻燃剂是至少一种
溴化芳香族二酯二醇与至少一种醇反应剂的反应产物。优选的液态阻燃添加剂组合物能够在泡沫生产过程中最大限度地减少可见的焦烧现象。此外,还提供了柔性阻燃聚
氨酯泡沫及其生产方法。阻燃添加剂组合物至少由以下物质形成:a) 至少一种
溴化芳香族二酯二元醇与醇反应剂的反应产物;b) 至少一种受阻胺
抗氧化剂;c) 至少一种
酚类抗氧化剂,其中
酚环被烷酸烷基酯基团取代,烷酸分子的碳原子数在 2 至约 4 之间,烷基的碳原子数在约 6 至约 16 之间。