C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/15 (2006.01) C07D 307/77 (2006.01) C07D 307/83 (2006.01) C08K 5/00 (2006.01) C10M 129/20 (2006.01) G03C 1/815 (2006.01) G03C 7/392 (2006.01)
Patent
CA 2400063
The invention describes novel compounds of the formula (I) wherein the general symbols are as defined in claim (1) and R1 is an aromatic radical with electron withdrawing substituents, as stabilizers for protecting organic materials, in particular polymers and lubricants, against oxidative, thermal or light-induced degradation and as scavengers for oxidized developer in color photographic material.
La présente invention concerne des composés de formule (I) dans laquelle les symboles généraux correspondent aux éléments définis dans la revendication (1) et R¿1? est un radical aromatique comprenant des substituants d'élimination d'électrons. Ces composés sont utilisés comme agents stabilisateurs destinés à protéger des matières organiques, en particulier des polymères et des lubrifiants, contre la dégradation induite par l'oxydation, la température ou la lumière, et comme agent de fixation pour des agents révélateurs oxydés dans des matériaux de photographie couleur.
Dosenbach Oliver
Mader Dietmar
Nesvadba Peter
Rotzinger Bruno
Tinkl Michael
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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