| 摘要 |
Substituted 1,3,2-benzoxazaphospholidines of formula I <IMAGE> (I) wherein R1, R2 and R3 are independently hydrogen, alkyl, cycloalkyl, phenylalkyl or aryl, n is 1 to 4, and T is an n-valent aliphatic or aromatic hydrocarbon radical are effective in stabilizing organic materials against the deleterious effects of oxygen, heat and actinic radiation.
|
