| 摘要 |
The instant invention relates to compounds of the general formula: <IMAGE> wherein R1 represents an alkyl, alkenyl, phenyl or phenylalkyl radical, R2 represents an alkyl, alkenyl or alkynyl radical, a omega -halogenoethyl radical, an optionally substituted benzyl radical, a phenylalkenyl radical, an optionally substituted phenyl radical, a radical of the formula R4-O-(CH2)n- wherein n is 2, 3, or 4 and R4 represents an optionally substituted alkyl radical or a phenyl radical, R3 represents a hydrogen atom, an alkyl, alkenyl or phenyl radical. The compounds of formula I have been found to be useful as stabilizers for vinyl resins. |
