abstract |
Nonblack elastomers, which have excellent stability against oxidative, light- or ozone-induced degradation, comprise as stabilizers at least one compound of formula I n wherein n R 1 is hydrogen, C 1 -C 12 alkyl, cyclohexyl, phenyl or benzyl, n R 2 is hydrogen or C 1 -C 4 alkyl, and n n is the number 0, 1 or 2. The compounds of formula I are excellently suitable as colour-stable and nonstaining stabilizers and antiozonants for protecting nonblack elastomers against oxidative, thermal, light- or ozone-induced degradation. |