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5 条记录 (耗时 0.016 秒)

    Pyrazole derivatives
    2.
    发明授权
    Pyrazole derivatives 失效
    吡唑衍生物

    公开(公告)号：US3976658A

    公开(公告)日：1976-08-24

    申请号：US486345

    申请日：1974-07-08

    申请人： Lajos Avar ,  Kurt Hofer ,  Martin Preiswerk

    发明人： Lajos Avar ,  Kurt Hofer ,  Martin Preiswerk

    IPC分类号： C09K3/00 ,  C07D231/20 ,  C07D231/22 ,  C07D231/24 ,  C07D231/26 ,  C08K5/3445

    CPC分类号： C08K5/3445 ,  C07D231/20 ,  C07D231/22 ,  C07D231/24 ,  C07D231/26

    摘要： New ultraviolet light-absorbing compounds of the formula ##SPC1##In whichR.sub.1 is a substituent, e.g. alkyl,R.sub.2 is a substituent, e.g. alkyl,R.sub.3 is hydrogen or a substituents, e.g. alkyl,n is 1, 2 or 3, andR is an n-valent, optionally substituted benzene radical, or a 1- or 2-valent naphthalene or heterocyclic radical,Which are producible by known processes.Such compounds are useful as stabilizers of organic materials, particularly plastics materials, against the degrading action of ultraviolet light and can be either applied as a coating on the organic material, or incorporated therein.

    摘要翻译： 式I的新的紫外光吸收化合物，其中R1是取代基，例如

    Pyrazole derivatives
    4.
    发明授权
    Pyrazole derivatives 失效
    吡唑衍生物

    公开(公告)号：US4102857A

    公开(公告)日：1978-07-25

    申请号：US716345

    申请日：1976-08-20

    申请人： Lajos Avar ,  Kurt Hofer ,  Martin Preiswerk

    发明人： Lajos Avar ,  Kurt Hofer ,  Martin Preiswerk

    IPC分类号： C07D231/20 ,  C07D231/22 ,  C07D231/24 ,  C07D231/26 ,  C08K5/3445 ,  C08K5/34

    CPC分类号： C08K5/3445 ,  C07D231/20 ,  C07D231/22 ,  C07D231/24 ,  C07D231/26 ,  Y10S524/925

    摘要： New ultraviolet light-absorbing compounds of the formula ##STR1## IN WHICH R.sub.1 is a substituent, e.g. alkyl,R.sub.2 is a substituent, e.g. alkyl,R.sub.3 is hydrogen or a substituent, e.g. alkyl,N is 1, 2 or 3, andR is an n-valent, optionally substituted benzene radical, or a 1- or 2-valent naphthalene or heterocyclic radical, which are producible by known processes. Such compounds are useful as stabilizers of organic materials, particularly plastics materials, against the degrading action of ultraviolet light and can be either applied as a coating on the organic material, or incorporated therein.Such compounds are useful as stabilizers of organic materials, particularly plastics materials, against the degrading action of ultraviolet light and can be either applied as a coating on the organic material, or incorporated therein.

    摘要翻译： 式中的新的紫外线吸收光的化合物，其中R 1是取代基，例如