摘要:
This invention relates to compounds which are suitable as ash-free antiwear additives and antioxidants, to lubricant compositions comprising said compounds as well as to their use. Compounds of formulae ##STR1## are particularly preferred. In the preferred compounds I',R.sub.2 is isooctyloxycarbonylmethyl, R.sub.3 is isooctyloxycarbonylmethylthiomethyl and R.sub.4 is hydrogen; orR.sub.2 is tert-nonyl and R.sub.3 is tert-nonylthiomethyl and R.sub.4 is hydrogen; orR.sub.2 is isooctyloxycarbonylmethyl, R.sub.3 is hydrogen and R.sub.4 is isooctyloxycarbonylmethylthiomethyl; orR.sub.2 is tert-nonyl, R.sub.3 is hydrogen and R.sub.4 I is tert-nonylthiomethyl.In the preferred compounds II',R.sub.2 and R.sub.2 ' are isooctyloxycarbonylmethyl, R.sub.3 and R.sub.3 ' are isooctyloxycarbonylmethylthiomethyl and R.sub.4 and R.sub.4 ' are hydrogen; orR.sub.2 and R.sub.2 ' are tert-nonyl, R.sub.3 and R.sub.3 ' are tert-nonylthiomethyl and R.sub.4 and R.sub.4 ' are hydrogen; orR.sub.2 and R.sub.2 ' are isooctyloxycarbonylmethyl, R.sub.3 and R.sub.3 ' are hydrogen and R.sub.4 and R.sub.4 ' are isooctyloxycarbonylmethylthio; orR.sub.2 and R.sub.2 ' are tert-nonyl, R.sub.3 and R.sub.3 ' are hydrogen and R.sub.4 and R.sub.4 ' are tert-nonylthiomethyl.
摘要:
The present invention relates to novel liquid phenolic antioxidants, to organic materials stabilized with said compounds against thermal, oxidalive and/or actinic degradation, and to the use of said novel compounds as stabilizers.
摘要:
Compositions comprising compounds of formula ##STR1## wherein the radicals R and R.sub.1 to R.sub.5 are as defined in claim 1, are described. Some of those compounds are novel. They are suitable for the stabilization of organic materials.
摘要:
The invention relates to compounds of formula I ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials against thermal, oxidative or light-induced degradation.
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 the formula (I) ##STR1## in which the Rs independently of one another are H, phenyl, naphthyl or C.sub.7 -C.sub.30 alkaryl and R.sup.1 is H, C.sub.1 -C.sub.8 alkyl, C.sub.7 -C.sub.9 aralkyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl, naphthyl, C.sub.7 -C.sub.30 alkaryl or a group of the formula (II)--(CH.sub.2).sub.a --SR.sup.3 (II)R.sup.2 is C.sub.7 -C.sub.30 alkaryl, phenyl, naphthyl or phenyl containing, in the para-position, an HO or C.sub.1 -C.sub.18 alkoxy group or a group of the formulae ##STR2## or R.sup.1 and R.sup.2, together with the nitrogen atom to which they are attached, are a radical of the formula (III) ##STR3## R.sup.3 is a radical of the formulae --(CH.sub.2).sub.b --COOR.sup.6 or --(CH.sub.2).sub.2 OCOR.sup.7, a is the number 1, 2 or 3 and b is the number 1 or 2, and R.sup.4 is phenyl or a group of the formula (II), the two R.sup.5 s independently of one another are H, C.sub.1 -C.sub.24 alkyl, C.sub.5 -C.sub.12 cycloalkyl or C.sub.7 -C.sub.9 aralkyl, and R.sup.6 is H, C.sub.1 -C.sub.18 alkyl or benzyl, R.sup.7 is C.sub.1 -C.sub.14 alkyl, phenyl or a group of the formula--(CH.sub.2).sub.m --Y--(CH.sub.2).sub.m --COO(CH.sub.2).sub.2 --S--(CH.sub.2).sub.a N(R.sup.1)(R.sup.2)in which Y is --O-- or --S--, a is the number 1, 2 or 3 and m is the number 1 or 2, B is a direct bond, --S--, --S--S-- or a C.sub.1 -C.sub.12 alkylene radical, X in the formula (III) is a direct bond, --S-- or a group of the formulae ##STR4## form a phenothiazine, phenazine, acridine or carbazole radical.
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:
Mixtures of substances which are obtainable by reacting elementary sulfur with compounds of the formula I ##STR1## are described. The radical X contains an olefinic double bond. R is a hydrocarbon radical, p is 0, 1 or 2 and t is 1, 2 or 3. The mixtures of substances according to the invention can be employed as antioxidants in organic polymers and in lubricants. They can also be used as high-pressure additives or anti-wear additives.
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.