摘要:
A lubricant based on a mineral or synthetic oil is stabilized against oxidative degradation by the addition of a mixture comprising at least one specified aromatic amine of the formula I or II ##STR1## and at least one sterically hindered amine. The lubricant may contain other antioxidants or other additives. It is preferably used as motor oil.
摘要:
A lubricant based on a mineral or synthetic oil is stabilized against oxidative degradation by the addition of a mixture comprising at least one specified aromatic amine of the formula I ##STR1## and at least one sterically hindered amine. The lubricant may contain other antioxidants or other additives. It is preferably used as motor oil.
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:
Products are described which can be obtained by reacting components a), b), c) and 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 or a mixture of compounds of the formula III and component d) is a compound of the formula IV or a mixture of compounds of the formula IV, ##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, 1,2-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, sunflower oil or coconut fat, the compound of the formula III being, for example, methyl 3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate and the compound of the formula IV, being for example, sulfur or diisopropyl dithiophosphate. The abovementioned products can be used as liquid antioxidants in polymers and lubricants.
摘要:
Polymers grafted with a compound of formula I, formula (I) wherein the general symbols are as defined in claim 1, have outstanding stability against oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation [R1—SOmnR—SOp—R2. (I)
摘要翻译:用式I化合物(I)接枝的聚合物,其中通式如权利要求1所定义,具有优异的抗氧化,热,动态,光诱导和/或臭氧诱导的降解的稳定性, 公式描述=“在线公式”end =“lead”?> [R&lt; 1&lt;&lt;&lt;&lt;&gt;&lt; img id =“PRIVATE-USE-CHARACTER-00001” =“6.77mm”wi =“8.47mm”file =“US07160955-20070109-Brketclosest.TIF”alt =“私人使用字符Brketclosest”img-content =“character”img-format =“tif”/> sub> R 2 SO 2 -R 2。 (I)<?in-line-formula description =“In-line Formulas”end =“tail”?>
摘要:
This invention relates to a novel, technically advantageous process for the preparation of a mixture of alkylated phenothiazines and diphenylamines. Starting from diphenylamine, this is reacted with elemental sulfur in the presence of iodine, and the substance mixture of diphenylamine and phenothiazine is treated with an olefin in the presence of an acid catalyst.
摘要:
Novel compositions are described which comprise 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.
摘要:
Compounds of formula I ##STR1## wherein R.sub.1, R.sub.2 and A are essentially hydrocarbyl or substituted hydrocarbyl groups with at least one of R.sub.1 and R.sub.2 being cyclohexyl, n is 0, 1 or 2, m is an integer of 1 to 4 and X is oxygen or --N(R.sub.3)-- wherein R.sub.3 is hydrogen, C.sub.1 -C.sub.4 alkyl or phenyl.
摘要:
Polymers grafted with a compound of formula I, wherein the general symbols are as defined in claim 1, have outstanding stability against oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation.
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.