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    • 10. 发明授权
    • Sterically hindered amines and use thereof as polymer stabilizers
    • 胺受阻胺及其作为聚合物稳定剂的用途
    • US08404765B2
    • 2013-03-26
    • US12702083
    • 2010-02-08
    • Luca BemporadFerruccio BerteCarlo Seccomandi
    • Luca BemporadFerruccio BerteCarlo Seccomandi
    • A61K9/16B01F17/00B60C1/00C07D401/00C07D403/00C07D413/00C08G18/28C08G69/26C08G73/10C08K5/34C08K5/35C08K5/3435C08K5/3492C08L67/00C08L73/00C08L75/00C08L77/00C08L79/00
    • C07D403/14C07D403/12C08K5/34926
    • The present invention relates to polypiperidine compounds capable of conferring to polymeric materials, particularly polyolefins, a high stability against photodegradation and oxidative action of air, which belong to the HALS category and have the following general formula (I) in which x can be zero or 1; y is between 1 and 10; m and n, which may be different or equal to each other, range from 2 to 8; A represents a NPiR1 group or a NR2R3 group; and Pi represents the group of formula (II) wherein R1 is selected from the group consisting of H, C1-C4 straight-chain and branched-chain alkyl groups; R2 and R3 can be the same or different and are selected in the group consisting of H, C1-C8 straight-chain and branched-chain alkyl groups, cyclic alkyl groups having from 5 to 12 carbon atoms, or form together with the nitrogen atom a heterocyclic ring having from 5 to 7 members, comprising other heteroatoms such as O, R4 is selected from the group consisting of H, C1-C4 straight-chain and branched-chain alkyl group, and OR5 group, wherein R5 is selected from the group consisting of H, C1-C8 straight-chain or branched-chain alkyl groups. The invention also relates to processes for the preparation of the compounds according to the invention.
    • 本发明涉及能够赋予聚合物材料,特别是聚烯烃的多哌啶化合物,属于HALS类别的具有高的光降解稳定性和空气的氧化作用,并具有以下通式(I),其中x可以为零或 1; y在1到10之间; m和n可以彼此不同或相等,为2至8; A表示NPiR1组或NR2R3组; 并且Pi表示式(II)的基团,其中R 1选自H,C 1 -C 4直链和支链烷基; R2和R3可以相同或不同,并且选自H,C1-C8直链和支链烷基,具有5至12个碳原子的环状烷基,或与氮原子一起形成 具有5至7个成员的杂环,包含其它杂原子如O,R 4选自H,C 1 -C 4直链和支链烷基,和OR 5基团,其中R 5选自 由H,C 1 -C 8直链或支链烷基组成的组。 本发明还涉及制备本发明化合物的方法。