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    Tris-aryls-triazines substituted with biphenylyl groups
    1.
    发明授权
    Tris-aryls-triazines substituted with biphenylyl groups 失效
    用联苯基取代的三 - 芳基 - 三嗪

    公开(公告)号：US5726309A

    公开(公告)日：1998-03-10

    申请号：US703751

    申请日：1996-08-27

    申请人： Tyler A. Stevenson ,  Revathi Iyengar ,  Ramanathan Ravichandran

    发明人： Tyler A. Stevenson ,  Revathi Iyengar ,  Ramanathan Ravichandran

    IPC分类号： C07D251/24 ,  C07D405/14 ,  C08K5/3492 ,  C09D5/32 ,  C09K3/00 ,  C07D403/10 ,  C07D403/14

    CPC分类号： C08K5/3492 ,  C07D251/24 ,  Y10T428/31678 ,  Y10T428/31699

    摘要： The s-triazines of formula I are UV absorbers having high thermal stability and surprisingly high extinction coefficients making them of especial value for stabilizing polymer subsnates, especially automotive coatings. Tris-aryl-s-triazines in which at least one of the aryl groups has an hydroxy group ortho to the point of attachment to the triazine ring are well known UV absorbers. It is also well-known that this class of triszines protect organic polymers from the deleterious effects of exposure to actinic radiation. The instant invention pertains to novel dimetic or oligomeric tris-aryl-s-triazines wherein at least one of the aryl groups is a biphenylyl or substituted biphenylyl moiety. More particularly, the instant invention relates to compounds of formula I ##STR1## wherein G.sub.1, G.sub.2, and E.sub.2 are here-in-below defined.

    摘要翻译： 式I的s-三嗪是具有高热稳定性和令人惊讶的高消光系数的紫外线吸收剂，使得它们对于稳定聚合物沉淀物，特别是汽车涂料具有特别的价值。 其中至少一个芳基具有与三嗪环连接点邻接的羟基的三芳基-s-三嗪是众所周知的紫外线吸收剂。 众所周知，这类三嗪保护有机聚合物免受暴露于光化辐射的有害影响。 本发明涉及新的二聚或低聚三 - 芳基-s-三嗪，其中至少一个芳基是联苯基或取代的联苯基部分。 更具体地说，本发明涉及其中G1，G2和E2在下面定义的式I化合物（I）。