| 摘要 |
Aminic orthoester derivatives of the formulae <CHEM> wherein R and R1 independently are C1-C30alkyl, C1-C30 alkyl substituted by alkoxy of 1 to 12 carbon atoms, by amino, by aryl of 6 to 10 carbon atoms or by arylthio of 6 to 10 carbon atoms; C5-C12cycloalkyl, C1-C10 aryl or said aryl substituted by C1-C18 alkyl, halogen and/or -NHR3 wherein R3 is C1-C18 alkyl or phenyl; R2 is C1-C30 alkyl; and A is hydrogen, C1-C30 alkyl, C1-C30 alkyl substituted by alkoxy of 1 to 12 carbon atoms, by amino, by aryl of 6 to 10 carbon atoms or by arylthio of 6 to 10 carbon atoms; C5-C12 cycloalkyl, C6-C10 aryl or C6-C10 aryl substituted by C1-C18 alkyl, are effective in stabilizing organic materials against oxidative, thermal and actinic degradation. |
