Substituted piperidine hydroxamides, their preparation, and their use as
light stabilizers
    9.
    发明授权
    Substituted piperidine hydroxamides, their preparation, and their use as light stabilizers 失效
    取代的哌啶羟基酰胺,它们的制备及其作为光稳定剂的用途

    公开(公告)号:US4239891A

    公开(公告)日:1980-12-16

    申请号:US942991

    申请日:1978-09-18

    CPC分类号: C07D211/66 C08K5/3435

    摘要: The invention provides novel derivatives of 2,2-dimethyl-6,6-dialkyl-4-hydroxy-4'-carbamoyl-piperidines which carry a substituent at the amide nitrogen atom, and optionally a further substituent at the ring nitrogen atom, and a process for preparing these compounds.The products, optionally in the form of salts, are used for stabilizing thermoplastics against the damaging influence of light.

    摘要翻译: 本发明提供了在酰胺氮原子上带有取代基的2,2-二甲基-6,6-二烷基-4-羟基-4'-氨基甲酰基 - 哌啶的新衍生物,以及任选的环氮原子上的另外的取代基,以及 一种制备这些化合物的方法。 任选以盐形式的产品用于稳定热塑性塑料以抵抗光的有害影响。