发明授权
US06177491B1 Block oligomers containing 1-Hydrocarbyloxy-2,2,6,6-Tetramethyl-4-piperidyl groups as stabilizers for organic materials
有权
含有1-烃氧基-2,2,6,6-四甲基-4-哌啶基的嵌段低聚物作为有机材料的稳定剂
- 专利标题： Block oligomers containing 1-Hydrocarbyloxy-2,2,6,6-Tetramethyl-4-piperidyl groups as stabilizers for organic materials
- 专利标题（中）： 含有1-烃氧基-2,2,6,6-四甲基-4-哌啶基的嵌段低聚物作为有机材料的稳定剂
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申请号： US09424140申请日： 1999-11-18
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公开(公告)号： US06177491B1公开(公告)日： 2001-01-23
- 发明人: James Peter Galbo , Dario Lazzari , Fabrizio Guizzardi
- 申请人： James Peter Galbo , Dario Lazzari , Fabrizio Guizzardi
- 优先权： EP97810327 19970527
- 主分类号： C08K53492
- IPC分类号： C08K53492
摘要：
Compounds of formula (I), wherein n is a number from 2 to 14; R1 is for example C1-C18alkyl or C5-C12cycloalkyl; R2 is for example C2-C12alkylene; A is for example acetyl, (C1-C4alkoxy)carbonyl, (C1-C4alkyl)aminocarbonyl or C1-C4alkyl; B is —OR3, —N(R4(R5) or a group of formula (II); R3, R4 and R5, which are identical or different, are for example hydrogen or C1-C18alkyl, or —N(R4)(R5) is additionally a group of formula (III) with Y being —O—, —CH2—, —CH2CH2— or >N—CH3; X is —O— or >N—R6; R6 is for example hydrogen or C1-C18alkyl; and R is preferably a group of formula (IV); with the proviso that in the individual recurrent units of formula (I), each of the radicals B, R, R1 and R2 has the same or a different meaning. The indicated compounds are useful as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials, in particular synthetic polymers.
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