阅读说明：本技术 具有无卤素的阻燃剂的软质泡沫 (Flexible foams with halogen-free flame retardants ) 是由 R.W.阿尔巴赫 P.文纳 于 2018-07-11 设计创作，主要内容包括：本发明涉及具有磷腈的阻燃的聚氨酯软质泡沫以及通过组分A与组分B的反应制备PUR-软质泡沫的方法：组分A包含：A1,异氰酸酯-反应性组分,A2,发泡剂,包含水,A3,任选的助剂和添加剂,和A4,阻燃剂,B,异氰酸酯组分,其特征在于,阻燃剂A4包含式(I)的磷腈：[P<Sub>m</Sub>N<Sub>m</Sub>X<Sub>k</Sub>](I),其中,X彼此独立地代表O-芳基或NR-芳基并且至少一个芳基基团是被取代的,其中X可以代表桥,R选自H、C<Sub>1</Sub>-C<Sub>4</Sub>烷基和芳基,和m代表数字1-5,特别优选3或4,k取决于m并且代表数字0-2m,和磷腈不带有异氰酸酯反应性的基团。(The invention relates to flame-retardant polyurethane flexible foams having phosphazenes and to a method for producing PUR flexible foams by reacting a component A with a component B: component A bagComprises the following components: a1, an isocyanate-reactive component, a2, a blowing agent comprising water, A3, optional auxiliaries and additives, and a4, a flame retardant, B, an isocyanate component, characterized in that the flame retardant a4 comprises a phosphazene of formula (I): [ P ] m N m X k ](I) Wherein X independently of one another represents O-aryl or NR-aryl and at least one aryl group is substituted, wherein X may represent a bridge, R is selected from H, C 1 ‑C 4 Alkyl and aryl radicals, and m represents a number from 1 to 5, particularly preferably 3 or 4, k depending on m and representing a number from 0 to 2m, and the phosphazenes not carrying isocyanate-reactive groups.)