The present relates to flame-retardant expandable polymers and to polymer foams and to the use thereof. These flame-retardant expandable polymers and polymer foams can be contained in one or several pressurized containers. According to the present, at least one of the following phosphorus compounds is used as a flame retardant: phosphorus compound according to formula (Ia): (Ia) 10-hydroxy-9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO-OH); or the salts thereof according to formula (Ib): (Ib) (DOPO-OR); or the ring-opened hydrolysates thereof according to formula (Ic): (Ic).
本发明涉及阻燃性可膨胀聚合物和聚合物泡沫及其用途。这些阻燃性可膨胀聚合物和聚合物泡沫可以装在一个或多个加压容器中。根据本发明,以下至少一种
磷化合物可用作阻燃剂:根据式(Ia)的
磷化合物:(Ia)10-羟基-9,10-二氢-9-氧杂-10-
磷菲-10-氧化物(
DOPO-OH);或根据式(Ib)的其盐:(Ib)(
DOPO-OR);或根据式(Ic)的其开环
水解物:(Ic).