A flame retardant composition is prepared by reacting chloral with a nitrogen compound having the formula: ##STR1## wherein: (a) X= ##STR2## or, --SO.sub.2 --; (b) Z is selected from O or S; (c) R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are selected from the group consisting of H, alkyl of 1 to 6 carbons, and substituted or unsubstituted hydroxyalkyl of 2 to 4 carbons and mixtures thereof in a temperature range of 25.degree. to 100.degree. C., in the absence of a solvent and in an apparatus that provides efficient mixing. These compositions are useful for preparing flame retardant polyurethane foams.
一种阻燃组合物是通过将
氯乙醛与具有以下公式的氮化合物反应制备的:##STR1## 其中:(a) X= ##STR2## 或,--SO.sub.2 --; (b) Z被选择为O或S; (c) R.sub.1,R.sub.2,R.sub.3和R.sub.4被选择为H,1至6个碳的烷基,以及2至4个碳的取代或未取代的羟基烷基和其混合物,在25℃至100℃的温度范围内,在无溶剂的情况下,在提供高效混合的设备中。这些组合物适用于制备阻燃聚
氨酯泡沫。