申请人:Ciba-Geigy Corporation
公开号:US05268401A1
公开(公告)日:1993-12-07
The present invention relates to novel piperidine-triazine compounds of the general formula (I) ##STR1## in which R.sub.1 is e.g. hydrogen or methyl, A is e.g. --O--, m is e.g. 3, R.sub.2 is e.g. a group --OR.sub.4 or ##STR2## R.sub.4 is e.g. C.sub.1 -C.sub.4 alkyl, 2,2,6,6-tetramethyl-4-piperidyl or 1,2,2,6,6-pentamethyl-4-piperidyl, R.sub.5 and R.sub.6 which can be identical or different are e.g. C.sub.1 -C.sub.8 alkyl, cyclohexyl, tetrahydrofurfuryl, a group ##STR3## 2,2,6,6-tetramethyl-4-piperidyl or 1,2,2,6,6-pentamethyl-4-piperidyl, or R.sub.5 can also be hydrogen, or ##STR4## is e.g. 4-morpholinyl, n is 1, 2, 3 or 4 and, if n is 1, R.sub.3 is e.g. as defined above for R.sub.2 and, if n is 2, R.sub.3 is e.g. a group --E.sub.1 --R.sub.8 --E.sub.2 -- in which E.sub.1 and E.sub.2 which can be identical or different are e.g. >N-R.sub.12, R.sub.8 is e.g. C.sub.2 -C.sub.6 alkylene, C.sub.8 -C.sub.10 alkylene interrupted by 2 or 3 oxygen atoms or methylenedicyclohexylene and R.sub.12 is e.g. hydrogen, methyl, 2,2,6,6-tetramethyl-4-piperidyl or 1,2,2,6,6-pentamethyl-4-piperidyl, and, if n is 3, R.sub.3 is e.g. a group ##STR5## in which R.sub.12 is e.g. as defined above and R.sub.13 and R.sub.14 which can be identical or different are e.g. C.sub.2 -C.sub.3 alkylene, and, if n is 4, R.sub.3 is e.g. a group ##STR6## in which R.sub.12 is e.g. as defined above and R.sub.20 and R.sub.21 which can be identical or different are e.g. C.sub.2 -C.sub.3 alkylene. These compounds are effective as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.
本发明涉及一种新的哌啶-三嗪化合物,其一般式为(I)
其中R1例如氢或甲基,A例如- O-,m例如3,R2例如羟基-OR4或-(CH2)n-NR3R6,R4例如C1-C4烷基,2,2,6,6-四甲基-4-哌啶基或1,2,2,6,6-五甲基-4-哌啶基,R5和R6可以相同或不同,例如C1-C8烷基,环己基,四氢呋喃基,-(CH2)n-NR3R6,2,2,6,6-四甲基-4-哌啶基或1,2,2,6,6-五甲基-4-哌啶基,或R5也可以是氢,或-(CH2)n-(CH2)m-NR3R6,其中n为1,2,3或4,如果n为1,则R3例如上述R2定义的羟基,如果n为2,则R3例如-E1-R8-E2-,其中E1和E2可以相同或不同,例如> N-R12,R8例如C2-C6烷基,C8-C10烷基被2或3个氧原子中断或甲基二环己基烷基,R12例如氢,甲基,2,2,6,6-四甲基-4-哌啶基或1,2,2,6,6-五甲基-4-哌啶基,如果n为3,则R3例如-(CH2)n-(CH2)m-NR3R6,其中R12例如上述定义,R13和R14可以相同或不同,例如C2-C3烷基,如果n为4,则R3例如-(CH2)n-(CH2)m-NR3R6,其中R12例如上述定义,R20和R21可以相同或不同,例如C2-C3烷基。这些化合物对有机材料具有光稳定剂、热稳定剂和氧化稳定剂的效果。