| abstract |
Compositions containing a) an organic material subject to oxidative, thermal or actinic degradation and b) compounds of general formula I <IMAGE> (I) wherein, for example, R1 is alkyl having from 1 to 18 carbon atoms, cycloalkyl having from 5 to 12 carbon atoms, phenyl or aralkyl having from 7 to 9 carbon atoms, R2 is -H, alkyl having from 1 to 18 carbon atoms, cycloalkyl having from 5 to 12 carbon atoms, phenyl or aralkyl having from 7 to 9 carbon atoms, and R3 is -H or CH3, and n is a number from 1 to 4 or 6, when n is 1, A is <IMAGE> and, for example, R4 is -H, alkyl having from 1 to 45 carbon atoms, cycloalkyl having from 5 to 12 carbon atoms or alkenyl having from 2 to 18 carbon atoms, and each of R5 and R6, independently of the other, is -H, alkyl having from 1 to 20 carbon atoms, phenyl or cycloalkyl having from 5 to 12 carbon atoms, or, when n is 2, for example A is <IMAGE> <IMAGE> <IMAGE> OCH2CHCHCH2O, OCH2CCCH2O, <IMAGE> <IMAGE> wherein a is a number from 1 to 30, x is a number from 2 to 20, B is, for example, -S-, and R7 and R8 are as defined above and b1 is a number from 2 to 10, or, when n is 3, A is <IMAGE> or, when n is 4, A is <IMAGE> ,1 ....OOor+RE <IMAGE> or, when n is 6, A is roperties in the compositions. Some of the compounds are novel. |