Thermally stable hindered amines as stabilizers

Details Thermally stable hindered amines as stabilizers Thermally stable hindered amines as stabilizers

C - Chemistry, Metallurgy

07

D

C07D 211/46 (2006.01) C07D 211/58 (2006.01) C07D 401/04 (2006.01) C08F 20/34 (2006.01) C08F 22/40 (2006.01) C08F 38/00 (2006.01)

Patent

CA 2232573

The invention relates to compounds of formula (I), in which R is H, C1- C12alkyl, phenyl, (C1-C4alkyl)phenyl, phenyl-C1-C4alkyl, halogen, C2- C12alkynyl or C1-C12alkoxy, X is NR', NCOR' or O, and Y is R'' or R''-CO-, where R'' is C2-C6alkenyl or C3-C6 alkenyl which is interrupted by -O-, -CO-, - NR'-, -S-, -SO-, -SO2- or phenylene, or (C1-C4alkenyl)phenyl, and R' is H or C1-C12alkyl, or -X-Y is the group of formula (a) or (b), and homopolymers and copolymers thereof and copolymers with further polymerizable monomers. These compounds and their copolymers are advantageously used, for example, for stabilizing organic material against the damaging effect of light, oxygen and/or heat.

L'invention concerne des composés de la formule (I) et des homopolymères et copolymères de ceux-ci, ainsi que des copolymères présentant d'autres monomères polymérisables. Dans cette formule, R représente H, alkyle C¿1?-C¿12?, phényle, (alkyle C¿1?-C¿4?)phényle, phényle-alkyle C¿1?-C¿4?, halogène, alkynyle C¿2?-C¿12? ou alcoxy C¿1?-C¿12?, X représente NR', NCOR' ou O et Y représente R'' ou R''-CO, où R'' représente alcényle C¿2?-C¿6? ou alcényle C¿3?-C¿6? interrompu par -O-, -CO-, -NR'-, -S-, -SO-, -SO¿2?- ou phénylène, ou (alcényle C¿1?-C¿4?)phényle, et R' représente H ou alkyle C¿1?-C¿12?, ou bien -X-Y représente un groupe de la formule (a) ou (b). On peut utiliser avantageusement ces composés et les copolymères de ceux-ci, par exemple pour stabiliser un matériau organique contre les effets dommageables de la lumière, de l'oxygène et/ou de la chaleur.

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