Hydroxyaminomethylphosphonates of formula I ##STR1## where R.sub.1 to R.sub.5 are independently hydrogen, alkyl, cycloalkyl, aryl or phenylalkyl, R.sub.6 has the same meanings except for hydrogen, and R.sub.1 can also be trialkylsilyl, are useful stabilizers for organic materials subject to oxidative, thermal or actinic induced degradation.
公式I的
羟胺甲基膦酸盐
其中R1至R5独立地为氢、烷基、环烷基、芳香基或苯基烷基,R6具有相同的含义,但不包括氢,而R1也可以是三烷基
硅基,对于易受氧化、热或光致降解的有机材料具有有用的稳定剂作用。