N-[2-hydroxy-3-(2H-benzotriazol-2-yl)benzyl]oxamides as light stabilisers
    1.
    发明公开
    N-[2-hydroxy-3-(2H-benzotriazol-2-yl)benzyl]oxamides as light stabilisers 失效
    N-2-羟基-3-(2H-苯并三唑基-2)苄基 - 氧化胺,Lichtstabilisatoren。

    公开(公告)号:EP0593936A1

    公开(公告)日:1994-04-27

    申请号:EP93115443.9

    申请日:1993-09-24

    CPC classification number: C07D249/20 C08K5/3475

    Abstract: This invention relates to novel UV absorbers, their methods of preparation, their use in stabilizing polymers and polymers so stabilized against the degradative effects of UV light. The novel compounds of formula I are oxamides which are substituted on one or both nitrogens with
    a 2-hydroxy-3-(2H-benzotriazol-2-yl)benzyl group. The 2-hydroxy-3-(2H-benzotriazol-2-yl)benzyl groups are efficient UV absorbing groups and the oxamide group contributes additional light stabilizing, heat stabilizing and metal complexing properties to the compounds. The compounds have low-volatility and are especially useful as UV stabilizers for engineering resins processed at high temperatures.

    Abstract translation: 本发明涉及新的UV吸收剂,它们的制备方法,它们在稳定聚合物和聚合物中的用途,以抵抗UV光的降解作用。 式I的新化合物是在一个或两个氮与2-羟基-3-(2H-苯并三唑-2-基)苄基上取代的酰胺。 2-羟基-3-(2H-苯并三唑-2-基)苄基是有效的UV吸收基团,并且草酰胺基团赋予化合物额外的光稳定性,热稳定性和金属络合性质。 该化合物具有低挥发性,并且特别适用于在高温下加工的工程树脂的UV稳定剂。

    Epoxy resins containing bound light stabilizing groups
    3.
    发明公开
    Epoxy resins containing bound light stabilizing groups 失效
    环氧树脂,模具坯料,gegen die Einwirkung von Licht stableisierende Gruppen enthalten。

    公开(公告)号:EP0507333A2

    公开(公告)日:1992-10-07

    申请号:EP92105801.2

    申请日:1992-04-03

    Abstract: Curable compositions which are precursors for cured or partially cured light stabilized epoxy resins which are the product of the reaction of some or all of the epoxy groups of an epoxy resin with an N-(2,2,6,6-tetraalkyl-4-piperidinyl)amic acid hydrazide as well as the cured or partially cured reaction products thereof together with processes for their use and articles of manufacture produced thereby are disclosed.

    Abstract translation: 作为固化或部分固化的光稳定化环氧树脂的前体的可固化组合物,其是环氧树脂的一些或全部环氧基团与N-(2,2,6,6-四烷基-4- 哌啶基)酰胺酰肼以及其固化或部分固化的反应产物及其制备方法及由此制备的制品。

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