COMPOSES DE PIPERIDINE CONTENANT DES GROUPES SILICIES, COMPOSITION LES CONTENANT ET PROCEDE LES UTLISANT POUR STABILISER DES MATIERES ORGANIQUES

• Main Authors: CARROZZA PRIMO, BORZATTA VALERIO
• Format: Patent
• Language: French
• Published: 05.12.1997
• Edition: 6
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Compounds of the formula (I) (I) in which m and n are numbers from 1 to 50; A is -O- or >N-R6 where R6 is e.g. hydrogen or C1-C18 alkyl; R1 and R4, which may be identical or different, are C1-C18alkyl, phenyl, C1-C8alkoxy, OH, ONa or OK; R2 is e.g. C2-C12alkylene; R3 is e.g. hydrogen or C1-C8alkyl; R5 is e.g. a group of the formula in which R9 is e.g. 2,2,6,6-tetramethyl-4-piperidyl; A' has one of the meanings of A; p is e.g. 1 and R10 is e.g. C2-C18alkylene; X1 has one of the meanings of R1 or is a group (R27)3SiO- where R27 is C1-C18alkyl; X2 is hydrogen, Na, K, C1-C8alkyl or a group (R27)3Si- with R27 as defined above and, when m+n is a number from 3 to 10, X1 and X2 together can also represent a direct linkage; are useful as stabilizers for organic materials against degradation induced by light, heat or oxidation.