(Hydroxyphenyl)phosphine derivatives of the formula ##STR1## are effective in stabilizing organic materials against oxidative, thermal and actinic degradation, said derivatives being particularly effective as process stabilizers in organic materials containing phenolic antioxidants.
                            式为##STR1##的(羟基苯基)膦衍
生物对于稳定有机材料抵抗氧化、热降解和光化降解是有效的,这些衍
生物在含有
酚类抗氧化剂的有机材料中特别作为工艺稳定剂是有效的。