摘要:
Products are described which are obtainable by reacting compounds of formula I with compounds of formula IIa or/and IIb and IIIa or/and IIIb and additionally, where appropriate, IV ##STR1## wherein the general symbols are as defined in claim 1, the compound of formula I being, for example, methyl 3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate, the compound of formula IIa being, for example, diethanolamine, the compound of formula IIIa being, for example, methyl oleate, and the compound of formula IV being, for example, sulfur. The cited products can be used as liquid antioxidants in organic materials.
摘要:
Lubricants can be rendered more resistant to oxidation with the aid of compounds of the formula I ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, alkyl or benzyl, R'.sub.2 is hydrogen or alkyl, R.sub.3 and R.sub.4 are independently alkyl, phenyl or benzyl, R.sub.5 is hydrogen or alkyl, and R.sub.6 is alkyl. In a preferred embodiment, these compounds are combined with a customary phenolic antioxidant.
摘要:
The lubricity (anti-wear properties) of fuels, for example hydrocarbon fuels, oxygenated fuels or mixtures thereof, particularly diesel or aviation fuels having reduced sulphur and/or aromatic content for compliance with regulator requirements, is improved by addition of at least a product which can be obtained by reacting components a), b) and c), 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 and component c) is a compound of the formula III or a mixture of compounds of the formula III, 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, 1,4-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, sunflower oil or coconut fat, and the compound of the formula III being, for example, methyl 3-(3′,5′-di-tert-butyl-4′-hydroxyphenyl)propionate. The abovementioned products also improve corrosion inhibition.
摘要:
A triazine of the formula I ##STR1## in which R.sub.1 and R.sub.2 independently of one another are hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.6 -C.sub.18 -aryl, C.sub.7 -C.sub.18 -aralkyl or a radical of the formula II or III ##STR2## in which R.sub.3 is hydrogen or C.sub.1 -C.sub.8 -alkyl and R.sub.4 is hydrogen, oxyl, C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.4 -alkinyl, C.sub.2 -C.sub.21 -alkoxyalkyl, C.sub.7 -C.sub.8 -aralkyl, 2,3-epoxypropyl, an aliphatic acyl group with 1-9 C atoms or one of the groups --CH.sub.2 COOR.sub.5, --CH.sub.2 --CH(R.sub.6)--OR.sub.7, --COOR.sub.8 or --CONHR.sub.8, in which R.sub.5 is C.sub.1 -C.sub.12 -alkyl, C.sub.3 -C.sub.6 -alkenyl, phenyl, C.sub.7 -C.sub.8 -aralkyl or cyclohexyl and R.sub.6 is hydrogen, methyl or phenyl and R.sub.7 denotes hydrogen, an aliphatic or aromatic, araliphatic or alicyclic acyl group with 1-18 C atoms, in which the aromatic part can optionally be substituted by chlorine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.8 -alkoxy and/or by hydroxyl, and R.sub.8 denotes C.sub.1 -C.sub.12 -alkyl, cyclohexyl, phenyl or benzyl and A is a radical of the formula IV or V ##STR3## in which R.sub.3 and R.sub.4 have the above meaning, n is 1, 2 or 3 and R.sub.9 is hydrogen or hydroxyl and Y is --O-- or --NR.sub.10 --, in which R.sub.10 is hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.6 -C.sub.10 -aryl, C.sub.7 -C.sub.18 -aralkyl or a radical of the formula II with the above meaning, or A is --P(=O)(OR.sub.1)OR.sub.2, --S--R.sub.11, --NR.sub.12 R.sub.13 or --OR.sub.14, in which R.sub.1 and R.sub.2 have the above meaning, R.sub.11 is C.sub.1 -C.sub.18 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, C.sub.6 -C.sub.10 -aryl, C.sub.7 -C.sub.9 -aralkyl or the group --(C.sub.p H.sub.2p)--CO--OR.sub.15, in which R.sub.15 is C.sub.1 -C.sub.18 -alkyl, and p denotes 1 to 6 and R.sub.12 and R.sub.13 independently of one another are hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.3 -C.sub.4 -alkenyl, C.sub.5 -C.sub.7 -cycloalkyl, C.sub.6 -C.sub.10 -aryl, C.sub.7 -C.sub.9 -aralkyl or a radical of the formula II with the above meaning, and R.sub.14 denotes C.sub.1 -C.sub.18 -alkyl, C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.9 -aralkyl, and B is a radical of the formula IV or V with the above meaning or is --P(=O)(OR.sub.1)OR.sub.2, in which R.sub.1 is a radical of the formula II or III with the above meaning and R.sub.2 has the above meaning, and its salts, as additives for stabilizing organic material.
摘要:
Novel organic phenol-containing silicon compounds of the formula ##STR1## are disclosed. These compounds are suitable for use as lubricant additives.
摘要:
Novel oligomeric and polymeric phenolic 1,3,5-triazines, for example those of the formula ##STR1## their preparation and their use for stabilizing organic material and also the organic material protected against oxidative and light-induced degradation with the aid of these compounds.
摘要:
There are described compositions comprising a) an emulsion crude rubber, synthetic latex or natural rubber latex subject to oxidative, thermal, dynamic and/or light-induced degradation, and b) as stabilizer at least one compound of formula I wherein R1 is C8-C20alkyl; and optionally c) as further stabilizer at least one compound of formula II wherein R2 is C8-C12alkyl, R3 is hydrogen, C1-C12alkyl, cyclohexyl, 1-methylcyclohexyl, benzyl, &agr;-methylbenzyl, &agr;,&agr;-dimethylbenzyl or —CH2—S—R2, R4 is C1-C12alkyl, benzyl, &agr;-methylbenzyl, 60 ,&agr;-dimethylbenzyl or —CH2—S—R2, and R5 is hydrogen or methyl.
摘要:
Products are described which can be obtained by reacting components a), b) and c), 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 and component c) is a compound of the formula III or a mixture of compounds of the formula III, ##STR1## 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, 1,4-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, sunflower oil or coconut fat, and the compound of the formula III being, for example, methyl 3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate. The abovementioned products can be used as liquid antioxidants in polymers and lubricants.
摘要:
Novel compositions are described which comprises an elastomer or a lubricant and at least one compound of the formulae I or II ##STR1## The symbols R.sub.1, R.sub.2, R.sub.3, Z.sub.1 and Z.sub.2 are as defined in claim 1.The compounds of the formula II and some of the compounds of the formula I are novel, and they are used especially as antioxidants.