Piperidine compounds containing silane groups as stabilizers for organic materials

• Main Authors: CARROZZA PRIMO, BORZATTA VALERIO
• Format: Patent
• Language: English; Spanish
• Published: 16.07.1997
• 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) < IMAGE > (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 < IMAGE > 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.Compounds of the formula (I) < IMAGE > (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 < IMAGE > 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. COMPUESTOS PIPERIDINICOS QUE CONTIENEN GRUPOS SILANO COMO ESTABILIZADORES PARA MATERIALES ORGANICOS. SON COMPUESTOS DE FORMULA GENERAL (I), EN DONDE M Y N SON NUMEROS DE 1 A 50; A ES -0- O > N-R6 DONDE R6 ES, POR EJEMPLO, HIDROGENO O ALQUILO DE C1-C18; R1 Y R4, IDENTICOS O DIFERENTES, SON ALQUILO DE C1-C18, FENILO, ALCOXILO DE C1-C8, OH, ONA U OK; R2 ES, POR EJEMPLO, ALQUILENO DE C2-C12; R3 ES, POR EJEMPLO, HIDROGENO O ALQUILO DE C1-C8; R5 ES, POR EJEMPLO UN GRUPO DE LA FORMULA (II), EN DONDE R9 ES, POR EJEMPLO, 2,2,6,6-TETRAMETIL-4-PIPERIDILO A" TIENE UNO DE LOS SIGNIFICADOS DE A; P ES, POR EJEMPLO 1 Y R10 ES, POR EJEMPLO, ALQUILENO DE C2-C18; X1 TIENE UNO DE LOS SIGNIFICADOS DE R1 O ES UN GRUPO (R27)3 SIO- EN DONDE R27 ES ALQUILO DE C1-C18; X2 ES HIDROGENO, NA, K, ALQUILO DE C1-C18 O UN GRUPO (R27)3 SI- TENIENDO R27 EL SIGNIFICADO ANTES INDICADO, Y CUANDO M+N ES UN NUMERO DE 3 A 20, X1 Y X2 JUNTOS PUEDEN REPRESENTAR UN ENLACE DIRECTO. ESTOS COMPUESTOS SON UTILES COMO ESTABILIZADORES PARAMATERIALES ORGANICOS CONTRA DEGRADACION INDUCIDA POR LUZ, CALOR U OXIDACION.