A stabilizer composition which manifests an improved effect against thermal degradation and oxidation degradation of an organic material comprises a phosphite of formula (I)
wherein R1, R2, R4 and R5 each independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or a phenyl group, R3 and R6 each independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, X1 represents a divalent alcohol residue, X2 represents a direct bond or an alkylene group having 1 to 8 carbon atoms, and Y represents a hydroxyl group, and an amine (A).
一种可改善有机材料热降解和氧化降解效果的稳定剂组合物包括式(I)的
亚磷酸酯
其中 R1、R2、R4 和 R5 各自独立地代表氢原子、具有 1 至 8 个碳原子的烷基、具有 5 至 8 个碳原子的环烷基、具有 6 至 12 个碳原子的烷基环烷基、具有 7 至 12 个碳原子的芳烷基或苯基、R3 和 R6 各自独立地代表氢原子或具有 1 至 8 个碳原子的烷基,X1 代表二价醇残基,X2 代表直接键或具有 1 至 8 个碳原子的亚烷基,Y 代表羟基和胺 (A)。