Abstract: The invention relates to stabilized recycled plastics, which can be obtained from domestic, commercial and industrial waste or valuable material collections, comprising a macrocyclic compounds containing a radical of formula (I) or (II), in the macrocycle or in a side group of the macrocycle, where the macrocycle comprises at least 8 atoms and in which the substituents R, independently of one another, are methyl, ethyl or propyl, or two radicals R on the same carbon atom are, together, a pentamethylene radical, and a is the number 0, 1 or 2. The invention also relates to a process for the stabilization of recycled plastics and to the use of the above macrocyclic compounds as stabilizer.

Abstract: Piperidine-triazine compounds of the general formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen or methyl, R.sub.2 is e.g. 2,2,6,6-tetramethyl-4-piperidyloxy or 1,2,2,6,6-pentamethyl-4-piperidyloxy, m is e.g. 2, 3 or 4 and, if m is 2, R.sub.3 is e.g. a group of the formula (IIIc) or (IIIe) ##STR2## in which R.sub.10 and R.sub.12 which can be identical or different are e.g. hydrogen, cyclohexyl, 2,2,6,6-tetramethyl-4-piperidyl or 1,2,2,6,6-pentamethyl-4-piperidyl, R.sub.11 is e.g. C.sub.2 -C.sub.6 alkylene, R.sub.14 is e.g. hydrogen or methyl and p is e.g. 2, and, if m is 3 or 4, R.sub.3 is e.g. a group of the formula (IV) ##STR3## in which R.sub.15 and R.sub.19 which can be identical or different are e.g. hydrogen, 2,2,6,6-tetramethyl-4-piperidyl or 1,2,2,6,6-pentamethyl-4-piperidyl, R.sub.16, R.sub.17 and R.sub.18 which can be identical or different are e.g. C.sub.2 -C.sub.3 alkylene and q is e.g.

Abstract: Piperidine-triazine compounds of the general formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen or methyl, R.sub.2 is e.g. 2,2,6,6-tetramethyl-4-piperidyloxy or 1,2,2,6,6-pentamethyl-4-piperidyloxy, m is e.g. 2,3 or 4 and, if m is 2, R.sub.3 is e.g. a group of the formula (IIIc) or (IIIe) ##STR2## in which R.sub.10 and R.sub.12 which can be identical or different are e.g. hydrogen, cyclohexyl, 2,2,6,6-tetramethyl-4-piperidyl or 1,2,2,6,6-pentamethyl-4-piperidyl, R.sub.11 is e.g. C.sub.2 -C.sub.6 alkylene, R.sub.14 is e.g. hydrogen or methyl and p is e.g. 2, and, if m is 3 or 4, R.sub.3 is e.g. a group of the formula (IV) ##STR3## in which R.sub.15 and R.sub.19 which can be identical or different are e.g. hydrogen 2,2,6,6-tetramethyl-4-piperidyl or 1,2,2,6,6-pentamethyl-4-piperidyl, R.sub.16, R.sub.17 and R.sub.18 which can be identical or different are e.g. C.sub.2 -C.sub.3 alkylene and q is e.g.

Abstract: A polyethylene stabilizer composition comprises:A) one or more compounds with piperidine groups of the formula (I) or (Ia) ##STR1## in which R is hydrogen, C.sub.1 -C.sub.4 -alkyl, allyl, benzyl, acetyl, acryloyl, 2-hydroxyethyl or 2-hydroxypropyl andB) one or more metal compounds such as oxides and hydroxides of Al, Mg and Zn and, if appropriate, one or more salts of Al, Ba, Ca, Mg, Sr and Zn with C.sub.1 -C.sub.22 -carboxylic acids.

Abstract: The novel compounds of the formula (I) ##STR1## in which R.sub.1 is di(C.sub.1 -C.sub.4 -alkyl)amino, C.sub.1 -C.sub.4 -alkoxy, a 5-membered to 7-membered nitrogen containing heterocyclic group with the nitrogen atom bonded to the triazine ring, or a group of the formula (II), ##STR2## R.sub.2 and R.sub.4 which are identical or different are C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, benzyl or 1,2,2,6,6-pentamethyl-4-piperidyl, n is 2 or 3 and, if n is 2, R.sub.3 is a group ##STR3## with R.sub.5 and R.sub.7, which are identical or different, being hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, benzyl or 1,2,2,6,6-pentamethyl-4-piperidyl and R.sub.6 being C.sub.2 -C.sub.12 -alkylene, cyclohexylene, cyclohexylenedimethylene or methylenedicyclohexylene, or R.sub.3 is the divalent radical or a 6-membered to 7-membered heterocyclic compound with two nitrogen atoms which are each bonded to a triazine ring, or, if n is 3, R.sub.3 is a group ##STR4## with R.sub.8 and R.sub.

Abstract: The present invention relates to novel piperidine-triazine compounds of the general formula (I) ##STR1## in which R.sub.1 e.g. hydrogen or methyl, .lambda. is e.g. 1 and R.sub.2 and R.sub.3 are e.g. N-(2,2,6,6-tetramethyl-4-piperidyl)-tetrahydrofurfurylamino or 1,2,2,6,6-pentamethyl-4-piperidyloxy.These compounds are effective as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.

Abstract: The novel compounds of the formula (I) ##STR1## in which n is 1 or 2, R.sub.1 is hydrogen, O.multidot., OH, NO, CH.sub.2 CN, C.sub.1 -C.sub.8 -alkyl, allyl, benzyl, hydroxyalkyl, alkoxy, cycloalkoxy or acyl, R.sub.2 is alkyl, cycloalkyl, phenylalkyl, alkoxyalkyl, tetrahydrofurfuryl or a group of the formula (II) and A is a monovalent or divalent moiety, in which R.sub.1 is as defined above, and, if n=1, A is a group of the formula (III) in which each R.sub.9 independently is hydrogen or methyl, r is zero or 1 and are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.

Abstract: The novel compounds of the formula (I) ##STR1## in which R.sub.1 is di(C.sub.1 -C.sub.4 -alkyl)amino, C.sub.1 -C.sub.4 -alkoxy, a 5-membered to 7-membered nitrogen containing heterocyclic group with the nitrogen atom bonded to the triazine ring, or a group of the formula (II), ##STR2## R.sub.2 and R.sub.4 which are identical or different are C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, benzyl or 1,2,2,6,6-pentamethyl-4-piperidyl, n is 2 or 3 and, if n is 2, R.sub.3 is a group ##STR3## with R.sub.5 and R.sub.7, which are identical or different, being hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, benzyl or 1,2,2,6,6-pentamethyl-4-piperidyl and R.sub.6 being C.sub.2 -C.sub.12 -alkylene, cyclohexylene, cyclohexylenedimethylene or methylenedicyclohexylene, or R.sub.3 is the divalent radical of a 6-membered to 7-membered heterocyclic compound with two nitrogen atoms which are each bonded to a triazine ring, or, if n is 3, R.sub.3 is a group ##STR4## with R.sub.8 and R.sub.

Abstract: The compounds of the formula (I) ##STR1## in which R.sub.1 is C.sub.1 -C.sub.8 -alkyloxy, allyloxy, allylamino, di(C.sub.1 -C.sub.4 -alkyl)-amino, diallylamino, a 5-membered to 7-membered nitrogen containing heterocyclic group with the nitrogen atom linked to the triazine ring, or a group of the formula (II), ##STR2## R.sub.2 is hydrogen, O, OH, NO, CH.sub.2 CN, C.sub.1 -C.sub.8 -alkyl, allyl, benzyl, C.sub.1 -C.sub.8 -acyl, C.sub.1 -C.sub.18 -alkyloxy, C.sub.5 -C.sub.12 -cycloalkyloxy or OH-monosubstituted C.sub.2 -C.sub.4 -alkyl, R.sub.3 and R.sub.5 independently are hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.12 -cycloalkyl, C.sub.7 -C.sub.9 -phenylalkyl, tetrahydrofurfuryl, C.sub.2 -C.sub.4 -alkyl monosubstituted by OH, by C.sub.1 -C.sub.4 -alkyloxy or by di(C.sub.1 -C.sub.4 -alkyl)amino, or a group of the formula (III) ##STR3## with R.sub.2 as defined above, R.sub.4 is hydrogen, C.sub.1 -C.sub.

Abstract: A compound selected from the group consisting of compounds of the formula (I) ##STR1## The compounds of the formula (I) are useful as light stabilizers, heat stabilizers, and oxidation stabilizers.

Abstract: The present invention relates to novel bis-piperidyl-triazine compounds with 2 or more triazine rings, to their use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers, and to the organic materials thus stabilized.

Abstract: The present invention relates to novel piperidyl-triazine compounds with 2 or more triazine rings, to their use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, and to the organic materials thus stabilized.

Abstract: The compounds of the formula (I) ##STR1## in which R.sub.1 is C.sub.1 -C.sub.8 -alkyloxy, allyloxy, allylamino, di(C.sub.1 -C.sub.4 -alkyl)amino, diallylamino, a 5-membered to 7-membered nitrogen containing heterocyclic group with the nitrogen atom linked to the triazine ring, or a group of the formula (II), ##STR2## R.sub.2 is hydrogen, O.sup.., OH, NO, CH.sub.2 CN, C.sub.1 -C.sub.8 -alkyl, allyl, benzyl, C.sub.1 -C.sub.8 -acyl, C.sub.1 -C.sub.18 -alkyloxy, C.sub.5 -C.sub.12 -cycloalkyloxy or OH-monosubstituted C.sub.2 -C.sub.4 -alkyl, R.sub.3 and R.sub.5 independently are hydrogen, C.sub.1 -C.sub.12 -alkyl,* monosubstituted by OH, by C.sub.1 -C.sub.4 -alkyloxy or by di(C.sub.1 -C.sub.4 -alkyl)amino, or a group of the formula (III) ##STR3## with R.sub.2 as defined above, R.sub.4 is hydrogen, C.sub.1 -C.sub.12 -alkyl or cyclohexyl and n is an integer from 2 to 6, are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers. * C.sub.5 -C.