摘要:
Stabilization system consisting of a triarylphosphite of the general formula ##STR1## wherein R.sub.1 represents tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl, and one ofR.sub.2 and R.sub.3 is hydrogen and the other is hydrogen, methyl, tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl,and a phenolic antioxidant, for stabilizing polyolefins.
摘要:
Stabilization system consisting of a triarylphosphite of the general formula ##STR1## wherein R.sub.1 represents tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl, and one ofR.sub.2 and R.sub.3 is hydrogen and the other is hydrogen, methyl, tert.-butyl, 1,1-dimethylpropyl, cyclohexyl or phenyl,and a phenolic antioxidant, for stabilizing polyolefins.
摘要:
Compositions comprising a chlorine-containing polymer and a stabilizer mixture comprising:a) at least one tin alcoholate or tin carboxylate of the formula[(R.sub.2).sub.2 Sn(OR')].sub.2 O (Ia);[(R.sub.2)Sn(OR').sub.2 ].sub.2 O (Ib);(R.sub.2)Sn(OR')O (Ic);[-(R.sub.2)Sn(OR')O--].sub.m (Id);[-(R.sub.1 CO.sub.2 Sn(R.sub.2).sub.2 ].sub.2 O (IIa);or[-(R.sub.2).sub.2 Sn--O.sub.2 C--R.sub.3 --CO.sub.2 --{(R.sub.2).sub.2 SnO{(R.sub.2).sub.2 SnO}.sub.i -].sub.n (IIb);b) at least one organic zinc carboxylate, zinc phenoxide or a tin chloride of the formula[(R.sub.1 CO.sub.2).sub.x (R.sub.2).sub.y CL.sub.z Sn].sub.n O.sub.n-1 (III)andc) at least one thiophosphate or thiophosphite of the formula(R.sub.6 S).sub.3 P.dbd.X.sub.b (IV)where the individual radicals are as defined in claim 1.
摘要:
There are disclosed compounds of formulae I and Ia ##STR1## wherein R.sub.1 and R.sub.2 are each independently of the other C.sub.1 -C.sub.13 alkyl which may be interrupted by oxygen, C.sub.5 -C.sub.6 cycloalkyl or, together with the linking N-atom, are a group of formula ##STR2## R is hydrogen or methyl, R.sub.3 is hydrogen or C.sub.1 -C.sub.13 alkyl, andR.sub.4 and R.sub.5 are each independently of the other hydrogen, C.sub.1 -C.sub.18 alkyl which may be interrupted by oxygen, C.sub.5 -C.sub.6 cycloalkyl or, together with the linking N-atom, are a group of formula ##STR3## withe proviso that R.sub.3, R.sub.4 and R.sub.5 are not simultaneously hydrogen and HNR.sub.1 R.sub.2 are not identical with NR.sub.3 R.sub.4 R.sub.5.The compounds are suitable for use as lubricant additives.
摘要:
A stabilizer combination, principally for PVC, is described, comprising A at least one zinc carboxylate B at least one compound of the formula ##STR1## in which R.sub.1 to R.sub.6 are as defined in claim 1.
摘要:
There are disclosed compounds of formula I ##STR1## R.sub.1 and R.sub.2 are each independently of the other C.sub.3 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.5 -C.sub.6 cycloalkylmethyl, C.sub.9 -C.sub.10 bicycloalkylmethyl, C.sub.9 -C.sub.10 tricycloalkylmethyl, phenyl, C.sub.7 -C.sub.6 alkylphenyl or, taken together, are ##STR2## R.sub.3 is hydrogen or methyl, A is ##STR3## R.sub.4 is hydrogen or C.sub.1 -C.sub.6 alkyl, and R.sub.5 is a 5- or 6-membered saturated heterocyclic ring,R.sub.6 is hydrogen or methyl,n is an integer from 1 to 11 and m is an integer from 0 to 4.These compounds are particularly suitable for use as additives for lubricant compositions, hydraulic fluids and machining fluids.
摘要:
Trithio- and tetrathiophosphates with mercaptocarboxylic acid derivatives are preeminently suitable as extreme pressure additives for lubricants. They reduce signs of wear and have no or only an insignificant corrosive action on the parts to be protected.
摘要:
Trithio- and tetrathiophosphates with mercaptocarboxylic acid derivatives are preeminently suitable as extreme pressure additives for lubricants. They reduce signs of wear and have no or only an insignificant corrosive action on the parts to be protected.
摘要:
Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.8 alkyl, and n is 3-6, with the proviso that R.sup.1 is not a phenyl radical which is substituted in both ortho-positions to the carbon atom bonded to the oxygen atom,if x=2, R.sup.1 is C.sub.2 -C.sub.18 alkylene, C.sub.2 -C.sub.18 alkylene which is interrupted by --NR.sup.5, --O-- or --S--, or is a ##STR3## radical, and, if x=3, R.sup.1 is C.sub.4 -C.sub.12 alkanetriyl or a ##STR4## group in which m is 1-4, are suitable as stabilizers for organic materials which are sensitive to thermal, oxidative and/or photoinduced degradation.