摘要:
Compositions comprising a chlorinated polymer and at least one compound of formula (I) where R1 or R2=linear or branched C3-C22 alkyl, unsubstituted or substituted with C1-C4 alkyl/alkoxy and/or hydroxy phenyl, unsubstituted or substituted by C1-C4 alkyl/alkoxy and/or hydroxy phenyl C1-C4 alkyl, linear or branched C3-C18 alkenyl, C3-C8— cycloalkyl, C3-C10 alkyl or C3-C10 hydroxyalkyl or acetoxy/benzoyloxy C2-C10 alkyl interrupted by at least one oxygen atom, as stabilisers for halogenated polymers.
摘要:
A description is given of compositions comprising a chlorine-containing polymer and at least one compound of the general formula I where x is oxygen or sulfur, and R is C2-C22-acyloxyalkyl or C1-C12-alkyl which may be interrupted by 1 to 3 oxygen atoms and/or substituted by 1 to 3 OH groups, or is C3-C8-alkenyl, C7-C10-phenylalkyl, C5-C8-cycloalkyl, C7-C10-alkylphenyl, phenyl or naphthyl, where the aromatic radical in each case may be substituted by —OH, C1-C12-alkyl and/or OC1-C4-alkyl, and R1 is hydrogen or is as defined for R.
摘要:
A stabiliser combination, mainly for PVC, is described, comprising A) at least one compound of formula I wherein R*1 and R*2 are each independently of the other C1-C12alkyl, C3-C6lkenyl, C5-C8cycloalkyl that is unsubstituted or substituted by from 1 to 3 C1-C4alkyl, C1-C4alkoxy, C5-C8cycloalkyl or by hydroxy groups or by chlorine atoms, or C7-C9phenylalkyl that is unsubstituted or substituted at the phenyl ring by from 1 to 3 C1-C4alkyl, C1-C4alkoxy, C5-C8cycloalkyl or by hydroxy groups or chlorine atoms, and R*1 and R*2 may additionally be hydrogen and C1-C12alkyl, and Y is S or O, and B) at least one compound from the following groups: B1) perchlorate compounds, B2) glycidyl compounds, B3) beta-diketones and beta-keto esters, B4) dihydropyridines and polydihydropyridines, B5) polyols and disaccharide alcohols, B6) sterically hindered amines (tetraalkylpiperidine compounds), B7) alkali aluminosilicates (zeolites), B8) hydrotalcites, B9) alkali aluminocarbonates (dawsonites), B10) alkali- (or alkaline earth-) carboxylates,-(bi)carbonates or -hydroxides, B11) antioxidants and lubricants and B12) organotin stabilisers.
摘要:
There is disclosed a process for the preparation of an alpha-aminoketone salt of formula I ##STR1## which comprises reacting a nitrosated keto ester of formula II ##STR2## with a carboxylic anhydride of formula IV ##STR3## under the conditions of catalytic hydrogenation, to a compound of formula III ##STR4## which compound of formula III is then hydrolysed with an acid H.sub.n A to the salt I, in which formulae above R.sub.1 is C.sub.1 -C.sub.6 alkyl, phenoxy-C.sub.1 -C.sub.4 alkyl, phenyl, C.sub.7 -C.sub.9 phenylalkyl, or phenyl or C.sub.7 -C.sub.9 phenylalkyl which are substituted by halogen, C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy, hydroxy or cyano, R.sub.2 is C.sub.1 -C.sub.4 alkyl or cyclohexyl, n is 1 to 3, R.sub.3 is C.sub.1 -C.sub.4 alkyl and A is the radical of an organic or mineral protic acid.Pyrroles suitable as co-stabilisers for PVC can be prepared from alpha-aminoketone salts of formula I.
摘要:
A composition comprisinga) a chlorinated polymer, andb) at least one compound of formula I ##STR1## wherein X is a group ##STR2## R.sub.1 and R.sub.2 are each independently of the other C.sub.1 -C.sub.20 alkyl, hydroxy- and/or halogen-substituted C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.20 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, C.sub.1 -C.sub.4 alkyl-substituted C.sub.5 -C.sub.8 cycloalkyl, phenyl or phenyl which is substituted by 1 to 3 radicals A.sub.1, which radicals A.sub.1 are each independently of one another selected from the group consisting of C.sub.1 -C.sub.10 alkyl, halogen, hydroxy, methoxy and ethoxy,R.sub.1 and R.sub.2 are further C.sub.7 -C.sub.10 phenylalkyl or C.sub.7 -C.sub.10 phenylalkyl which is substituted in the phenyl moiety by 1 to 3 radicals A.sub.2, which radicals A.sub.2 are each independently of one another selected from the group consisting of C.sub.1 -C.sub.20 alkyl, halogen, hydroxy, methoxy and ethoxy, andR.sub.3 is phenyl or phenyl which is substituted by 1 to 3 radicals A.sub.3, which radicals A.sub.3 are each independently of one another selected from the group consisting of C.sub.1 -C.sub.10 alkyl, halogen, hydroxy, methoxy, ethoxy and (C.sub.1 -C.sub.8 alkyl)oxycarbonyl, with the proviso that at least one of the radicals R.sub.1 and R.sub.2 is phenyl or substituted phenyl as defined above and R.sub.1 is different from methyl if R.sub.2 is phenyl.Some of the compounds of formula I are novel.
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:
Disclosed are stabilizer mixtures comprising at least a) one alkanolamine or one reaction product of a monofunctional or polyfunctional epoxide and ammonia or a monofunctional or polyfunctional dialkyl(aryl)amine or monoalkyl(aryl)amine, and b) one uracil or one initial product and an optional perchlorate salt
摘要:
The invention relates to 4-aminopyrimidinediones and oxazolidino-4-aminopyrimidinediones of the formula I and II given below, a process for their preparation, their use for stabilizing halogen-containing polymers, and compositions composed of compounds of the formula I or II and of chlorine-containing polymers, in particular PVC.
摘要:
A stabilizer combination, mainly for PVC, is described, comprisingA) at least one compound of formula I ##STR1## wherein R*.sub.1 and R*.sub.2 are each independently of the other C.sub.1 -C.sub.12 alkyl, C.sub.3 -C.sub.6 lkenyl, C.sub.5 -C.sub.8 cycloalkyl that is unsubstituted or substituted by from 1 to 3 C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.5 -C.sub.8 cycloalkyl or by hydroxy groups or by chlorine atoms, or C.sub.7 -C.sub.9 phenylalkyl that is unsubstituted or substituted at the phenyl ring by from 1 to 3 C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.5 -C.sub.8 cycloalkyl or by hydroxy groups or chlorine atoms,and R*.sub.1 and R*.sub.2 may additionally be hydrogen and C.sub.1 -C.sub.12 alkyl, and Y is S or O, andB) at least one compound from the following groups:B1) perchlorate compounds,B2) glycidyl compounds,B3) beta-diketones and beta-keto esters,B4) dihydropyridines and polydihydropyridines,B5) polyols and disaccharide alcohols,B6) sterically hindered amines (tetraalkylpiperidine compounds),B7) alkali aluminosilicates (zeolites),B8) hydrotalcites,B9) alkali aluminocarbonates (dawsonites),B10) alkali- (or alkaline earth-) carboxylates,-(bi)carbonates or -hydroxides,B11) antioxidants and lubricants andB12) organotin stabilizers.
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.