An oxyalkylated product useful for making polyurethane foams is prepared by reacting an alkylene oxide with a heated mixture of a phenol and a non-phenolic active hydrogen compound, at least one of which can be halogenated, in the presence of a catalyst complex of a phenol and an iron or aluminum substance. The mixture can also include a neutral phosphorus compound and/or acid anhydrides to enhance flame retardant properties. Optionally, also, the oxyalkylation reaction can be terminated by adding a tri (lower alkyl) amine and alkylene oxide to react with residual phenolic hydrogen in the mixture.
一种用于制备聚
氨酯泡沫的氧烷基化产物的制备方法,包括在催化剂复合物的存在下,通过将一种烷基氧化物与
苯酚和非
苯酚活性氢化合物的加热混合物反应制备而成。其中,至少有一种化合物可以卤化。该混合物还可以包括中性
磷化合物和/或酸酐,以提高阻燃性能。此外,也可以通过添加三(较低烷基)胺和烷基氧化物来终止氧烷基化反应,以与混合物中剩余的
苯酚氢发生反应。