Surface-modified precipitated silicas
    9.
    发明授权
    Surface-modified precipitated silicas 有权
    表面改性沉淀二氧化硅

    公开(公告)号:US07816442B2

    公开(公告)日:2010-10-19

    申请号:US11939335

    申请日:2007-11-13

    IPC分类号: C08K3/34

    摘要: A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20=1.4492 and containing 5% by weight of said silica, by at least 20%, in comparison to the same clear coating material containing 5% by weight of a reference precipitated silica surface treated with a polyethylene wax.

    摘要翻译: 可用作消光剂的表面改性沉淀二氧化硅含有在其表面上具有聚合物的二氧化硅。 表面改性的沉淀二氧化硅与含有5%重量比的透明涂层材料相比,改进了折射率为nD20 = 1.4492且含有5重量%所述二氧化硅的透明涂料的至少20% 的用聚乙烯蜡处理的参考沉淀二氧化硅表面活性剂。

    Surface-modified precipitated silicas
    10.
    发明授权
    Surface-modified precipitated silicas 失效
    表面改性沉淀二氧化硅

    公开(公告)号:US07553889B2

    公开(公告)日:2009-06-30

    申请号:US10844343

    申请日:2004-05-13

    IPC分类号: C08K9/06

    摘要: A surface-modified precipitated silica, useful as a matting agent, contains the silica having a polymer on a surface thereof. The surface-modified precipitated silica improves the transmission of a clear coating material, having a refractive index of nD20=1.4492 and containing 5% by weight of said silica, by at least 20%, in comparison to the same clear coating material containing 5% by weight of a reference precipitated silica surface treated with a polyethylene wax.

    摘要翻译: 可用作消光剂的表面改性沉淀二氧化硅含有在其表面上具有聚合物的二氧化硅。 表面改性的沉淀二氧化硅与含有5%重量比的透明涂层材料相比,改进了折射率为nD20 = 1.4492且含有5重量%所述二氧化硅的透明涂料的至少20% 的用聚乙烯蜡处理的参考沉淀二氧化硅表面活性剂。