| abstract |
Products are described which can be obtained by reacting components a), b), c) and optionally d), where component a) is a compound of the formula I or a mixture of compounds of the formula I, component b) is a compound of the formula II or a mixture of compounds of the formula II, component c) is a compound of the formula III (IIIa/IIIb) or a mixture of compounds of the formula III (IIIa/IIIb) and component d) is a compound of the formula IV or a mixture of compounds of the formula IV, (see formula I) (see formula II) (see formula IIIa) (see formula III) (see formula IIIb) (see formula IV) in which the general symbols are as defined in claim 1, the compound of the formula I being, for example, pentaerythritol, thiodiethylene glycol, 1,4-butanediol, 1,2-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, rapeseed oil, coconut fat or castor oil, the compound of the formula IIIa being, for example, 3-tert-butyl-hydroxy-5-methyl-benzylsulfanyl-acetic acid-methylester and the compound of the formula IIIb, for example, 3,5-di-tert-butyl-4-hydroxybenzylsulfanyl-acetic acid-methylester and the compound of the formula IV, being for example, sulfur, diisopropyl dithiophosphate, toluoltriazols or (see formula V) The abovementioned products can be used as liquid antioxidants in fuels, polymers and lubricants and events which lead to friction increase in engines. |