Patent ID: 9670430
Date: 2017-06-06
CPC Classifications: C10L,C10M,C10N

Claim:
1. A synergistic mixture, comprising: (A) from 50 to 95% by weight of a compound having a structural element which is (A2) a polycyclic phenolic compound comprising up to 20 benzene rings per molecule, obtained by reacting (a2-i) a tetrahydrobenzoxazine of formula (XXVI) wherein substituent R R R with at least one of (a2-ii) one or more of the same or different phenols of formula (XXVII) wherein R and (a2-iii) one or more of the same or different tetrahydrobenzoxazines of formula (XXVI) wherein R wherein R R R R R with the proviso that at least one of R (B) from 5 to 50% by weight of at least one sulfur containing organic compound with antioxidant activity selected from the group consisting of 2-mercaptobenzthiazole, 2-mercaptobenzimidazole, mercaptotriazine, C4- to C30-alkanethiol, thio glycol, di-C4- to C30-alkyl sulfide, bis(aralkyl) sulfide, bis(aralkyl) disulfide, di-C4- to C30-alkyl disulfide, di(C4- to C30-alkyl) 3,3′-thiopropionate, tetrakis[methylene-2-(C4- to C30-alkylthio) propionate]methane, C4- to C30-alkylthiopropylamide, thiodiethylene bis[3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate], 2,4-bis(C4- to C30-alkylthiomethyl)-6-methylphenol, hydroxyl-containing diaryl sulfide, zinc salt of dialkyldithiocarbamic acid, zinc dialkyldithiophosphate, and a reaction product of terpene, resin oil or low molecular weight polybutenes with sulfur or thiophenol, (C) from 0.1 to 5% by weight of at least one sulfur free antioxidant that is a substituted phenol derivative, an arylamine, or a p-phenylenediamine, where a sum of the concentrations of the three components (A), (B), and (C) adds up to 100% by weight.