摘要:
A composition and process is disclosed for the stabilization of halogen-containing polymers. In particular, chlorine-containing polymers such as poly vinyl chloride (PVC) are stabilized by incorporating of a stabilizer mixture having at least a perchlorate salt and an alkanolamine.
摘要:
The invention relates to stabilising systems for stabilising chlorinated polymers. The inventive stabilising systems contain a) at least one type of perfluoroalkane sulfonate salt and b) at least one or several indoles of general formula (I) and/or urea of general formula (II) and/or alcanolamines of general formula (III) and/or amonouracils.
摘要:
Compositions are described, comprisingA) rigid or semi-rigid PVC having a plasticiser content of up to 20%, andB) at least one compound of formula 1, ##STR1## wherein X is O or S, and R is H or phenyl, with the proviso that compounds from the groups of the perchlorate compounds, glycidyl compounds, beta-diketones, beta-keto esters, dihydropyridines, polydihydro-pyridines, polyols, disaccharide alcohols, sterically hindered amines (tetraalkylpiperidine compounds), alkali alumosilicates (zeolites), hydrotalcites, alkali alumocarbonates (dawsonites) are not present.
摘要:
The invention relates to compositions comprising a) a chlorine-containing polymer and b) at least one compound containing at least one radical of the formula I ##STR1## in which A is the additional groups or atoms necessary to form an unsubstituted or substituted six-membered heterocyclic ring containing two nitrogen ring atoms.
摘要:
Compounds of the general formula I ##STR1## in which n is 1, 2 or 3 and in which X is oxygen or sulfur, T has the meaning of --S--, --S--S--, --S--S--, --S--S--S--S--, --S--S--S--S--S--, ##STR2## and Y has the meaning of ##STR3## in which Z has the meaning of --H, --COR.sup.13, --COOR.sup.13 or --CONHR.sup.13, and Q has the meaning of oxygen or --NR.sup.0 --, and R.sup.1, R.sup.2, R.sup.0, R.sup.4 and R.sup.13 are as defined in claim 1, with the proviso that the compound of the formula C.sub.2 H.sub.5 --S--CH.sub.2 CH(OH)--P(OC.sub.2 H.sub.5).sub.2 is excepted.The invention also relates to compositions containing the compounds of the formula I and organic materials, for example functional liquids and, in particular, lubricants.
摘要:
There is disclosed a process for the preparation of 1,3-diketones of formula I ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other C.sub.1 -C.sub.20 alkyl, phenyl or phenyl which is substituted by halogen, hydroxy, NO.sub.2, C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, C.sub.7 -C.sub.9 phenylalkyl or a radical of formula II--A--X--R.sub.4 (II) whereinA is C.sub.1 -C.sub.12 alkylene, phenylene or phenylene which is substituted by halogen, hydroxy, NO.sub.2, C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or is C.sub.1 -C.sub.12 alkylene which is substituted by hydroxy, halogen and/or alkoxy,X is oxygen or sulfur, andR.sub.4 is hydrogen, C.sub.1 -C.sub.18 alkyl, phenyl or phenyl which is substituted by halogen, hydroxy,C.sub.1 -C.sub.4 alkyl, NO.sub.2 and/or C.sub.1 -C.sub.4 alkoxy, or is C.sub.7 -C.sub.9 phenylalkyl, andR.sub.3 is hydrogen, C.sub.1 -C.sub.20 alkyl, phenyl or phenyl which is substituted by halogen, hydroxy, C.sub.1 -C.sub.4 alkyl, NO.sub.2 and/or C.sub.1 -C.sub.4 alkoxy, or is C.sub.7 -C.sub.9 phenylalkyl.The process comprises carrying out a Claisen condensation of a ketone of formula III ##STR2## and an ester of formula IV ##STR3## wherein R.sub.5 is C.sub.1 -C.sub.5 alkyl, phenyl or phenyl which is substituted by halogen, C.sub.1 -C.sub.4 alkyl or hydroxy, the reaction being carried out with the base used as catalyst, a hydride of an alkali metal or alkaline earth metal or an alcoholate of C.sub.1 -C.sub.5 alkali metal or C.sub.1 -C.sub.5 alkaline earth metal, in a mixture of dimethyl sulfoxide and at least one organic solvent which is inert under the reaction conditions.
摘要:
A process for producing glycidylthio ethers of the formula I ##STR1## which process comprises reacting epichlorohydrin with a mercaptan of the formula IIR--SH (II)in which R can be a radical ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 independently of one another are each C.sub.1 -C.sub.18 -alkyl, and together contain no more than 22 C atoms, and R.sup.2 and R.sup.3 are in addition hydrogen, or wherein R is C.sub.5 -C.sub.6 -cycloalkyl, phenyl or naphthyl unsubstituted or substituted by C.sub.1 -C.sub.4 -alkyl, or is benzyl or furfuryl, or wherein R is C.sub.2 -C.sub.8 -alkylene which is substituted by --SH and which can be interrupted by 1 or 2 ether-O atoms, in an equimolar amount, without organic solvent and in the presence of a base, the reaction being performed by the phase-transfer catalysis process, wherein a phase-transfer catalyst is used, at a temperature of -30.degree. C. to +20.degree. C. The glycidyl thioethers thus obtained are compounds that play an important part in the synthesis of organic sulfur compounds, which are used for example as lubricant additives.
摘要:
The invention relates to compositions comprising a lubricant or a hydraulic fluid and at least one compound of the general formula ##STR1## wherein n is 2, 3 or 4, X is --S--, --O--, --O--CO--or --CH.sub.2 --, R.sup.1 is C.sub.1 -C.sub.22 alkyl, C.sub.5 -C.sub.6 cycloalkyl or phenyl, and R.sup.2 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.4 alkyl which is substituted by an --OH group, or a group of the formula --CH.sub.2 --CH(OH)--CH.sub.2 --X--R.sup.1, wherein X and R.sup.1 have the given meanings, and to novel compounds of the formula indicated above. The glucamine derivatives of formula I are especially suitable for use as antiwear agents and as extreme pressure additives for mineral and synthetic lubricant oils and hydraulic fluids, and also as amphipolar ligands for imparting lipophilic properties to intrinsically hydrophilic metal salts, metal oxides, metal hydroxides and to protic acids. The complex compounds so obtained of the formulaM.sub.n.sup.m .multidot.X.sub.m.sup.n .multidot.pY.multidot.qZ,wherein M is a cation of valency m or a proton, X is an anion of valency n, Z is a compound of formula I, Y is water or a neutral organic molecule, p is a value from 0 to 2, q is a value from 1 to 8, m is an integer from 1 to 6 and n is an integer from 1 to 4, are also disclosed.
摘要:
Compositions containing a lubricant, a hydraulic fluid or a metal-working fluid and at least one compound of the formula I ##STR1## in which R, R.sup.4, R.sup.5 and n are as defined in claim 1, are described. The compounds of the formula I are suitable for use as anti-wear agents and as extreme-pressure additives for lubricants, hydraulic fluids and metal-working fluids. Novel compounds of the formula I are also described.
摘要:
The invention relates to compositions comprising a lubricant or a hydraulic fluid and at least one compound of the general formula ##STR1## wherein n is 2, 3 or 4, X is --S--, --O--, --O--CO-- or --CH.sub.2 --, R.sup.1 is C.sub.1 -C.sub.22 alkyl, C.sub.5 -C.sub.6 cycloalkyl or phenyl, and R.sup.2 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.4 alkyl which is substituted by an --OH group, or a group of the formula --CH.sub.2 --CH(OH)--CH.sub.2 --X--R.sup.1, wherein X and R.sup.1 have the given meanings, and to novel compounds of the formula indicated above. The glucamine derivatives of formula I are especially suitable for use as antiwear agents and as extreme pressure additives for mineral and synthetic lubricant oils and hydraulic fluids, and also as amphipolar ligands for imparting lipophilic properties to intrinsically hydrophilic metal salts, metal oxides, metal hydroxides and to protic acids. The complex compounds so obtained of the formulaM.sub.n.sup.m. X.sub.m.sup.n. pY.qZ,wherein M is a cation of valency m or a proton, X is an anion of valency n, Z is a compound of formula I, Y is water or a neutral organic molecule, p is a value from 0 to 2, q is a value from 1 to 8, m is an integer from 1 to 6 and n is an integer from 1 to 4, are also disclosed.