N-substituted benzimidazole-2-carboxanilides, use thereof as...

Details N-substituted benzimidazole-2-carboxanilides, use thereof as... N-substituted benzimidazole-2-carboxanilides, use thereof as...

C - Chemistry, Metallurgy

07

D

400/7084, 260/30

C07D 235/24 (2006.01) C07D 235/20 (2006.01) C07D 405/12 (2006.01) C08K 5/34 (2006.01) C08K 5/3447 (2006.01)

Patent

CA 1334420

Compounds of the general formula (I) Image (I) where R1 and R2 are each H, C1, alkyl, alkoxy, substitu- ted or unsubstituted phenyl or phenylalkyl, R3 and R4 are each H, alkyl, oxaalkyl, alkoxy, oxaalkoxy, substituted or unsubstituted phenyl, phenylalkyl, phenoxy, phenyl- alkoxy, alkylcarbonylamino, benzoylamino, alkanoyloxy or benzoyloxy, n is 1 or 2 and R5 is - when n is 1 - alkyl, hydroxyalkyl, cycloalkyl, alkenyl, oxaalkyl, phenylalkyl or Image or or - when n is 2 - alkylene, cycloalkylene, alkenylene, oxaalkylene or Image Image or Image where m is from 2 to 4, R6 is alkyl, alkenyl, cycloalkyl, phenylalkyl, substituted or unsubstituted phenyl or naphthyl, and R7 is alkylene, alkenylene, cycloalkylene, substituted or unsubstituted phenylene, naphthylene, diphenylene, Image and Image are effective light stabilizers for organic materials, in particular for polymers.

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