Patent ID: 7723409

Claim:
A composition comprising a) a naturally occurring or synthetic elastomer susceptible to oxidative, thermal, dynamic, light induced and/or ozone-induced degradation, b) a white reinforcing filler, and c) as coupling agent, at least one compound of the formula I wherein, when n is 1, R 1 is hydrogen, C 1 -C 25 alkyl, C 1 -C 25 alkyl substituted with furyl, morpholine, C 1 -C 4 dialkylamino, C 1 C 4 -trialkylammonium or M +− O 3 S—; C 2 -C 25 alkyl interrupted by oxygen; C 5 -C 12 cycloalkyl, C 2 -C 25 alkenyl, unsubstituted or C 1 -C 4 alkyl substituted C 7 -C 9 bicycloalkyl; or when R 7 is a direct bond, R 1 is —CN, —SOR 8 , —SO 2 R 8 , —NO 2 or —COR 8 , when n is 2, R 1 is C 1 -C 25 alkylene, C 1 -C 25 alkylene substituted with C 1 -C 4 alkyl; C 2 -C 25 alkylene substituted with C 1 - C 4 alkyl and interrupted by oxygen; C 2 -C 25 alkylene interrupted by oxygen, sulfur, phenylene or cyclohexylene; or when R 6 and R 7 are a direct bond, R 1 is R 2 , R 3 and R 4 are each independently of the others C 1 -C 25 alkyl, C 2 -C 25 alkyl interrupted by oxygen; C 5 -C 12 cycloalkyl, C 2 -C 25 alkenyl, unsubstituted or C 1 -C 4 alkyl-substituted phenyl, C 7 -C 9 phenylalkyl, C 1 -C 25 alkoxy, C 3 -C 25 alkoxy interrupted by oxygen; C 5 -C 12 cycloalkoxy, C 2 -C 25 alkenyloxy, unsubstituted or C 1 -C 4 alkyl-substituted phenoxy, C 7 -C 9 phenylalkoxy, halogen, C 2 -C 25 alkanoyloxy or unsubstituted or C 1 -C 4 alkyl substituted benzoyloxy; with the proviso that at least one of R 2 , R 3 or R 4 is C 1 -C 25 alkoxy, C 3 -C 25 alkoxy interrupted by oxygen; C 5 -C 12 cycloalkoxy, C 2 -C 25 alkenyloxy, unsubstituted or C 1 -C 4 alkyl substituted phenoxy, C 7 -C 9 phenylalkoxy, halogen, C 2 -C 25 alkanoyloxy or unsubstituted or C 1 -C 4 alkyl substituted benzoyloxy; R 5 is C 1 -C 25 alkylene, C 5 -C 12 cycloalkylene, unsubstituted or C 1 -C 4 alkyl substituted phenylene; R 6 is a direct bond, C 1 -C 25 alkylene; or C 1 -C 25 alkylene substituted with C 1 -C 25 alkyl, C 2 -C 25 alkoxycarbonyl or phenyl; R 7 is a direct bond or with the proviso that, when R 7 is a direct bond and n is 1, R 6 is not a direct bond; and with the proviso that, when R 7 is R 6 is not a direct bond; R 8 is C 1 -C 25 alkyl, C 2 -C 25 alkyl interrupted by oxygen; C 5 -C 12 cycloalkyl, C 2 -C 25 alkenyl, C 2 -C 25 alkinyl, C 7 C 9 phenylalkyl, unsubstituted or C 1 -C 4 alkyl-substituted phenyl, R 9 is C 1 -C 5 alkyl, R 10 is hydrogen or C 1 -C 4 alkyl, R 11 and R 12 are each independently of the other hydrogen, CF 3 , C 1 -C 12 alkyl or phenyl, or R 11 and R 12 , together with the carbon atom to which they are bonded, form a C 5 -C 8 cycloalkylidene ring that is unsubstituted or substituted by from 1 to 3 C 1 -C 4 alkyl groups, R 13 is oxygen or —N(R 14 )—, R 14 is hydrogen or C 1 -C 12 alkyl, M is sodium, potassium or ammonium, and n is 1 or 2; or an oligomeric hydrolysis product of the compound of the formula I.