Interference pigments
    4.
    发明授权
    Interference pigments 失效
    干涉颜料

    公开(公告)号:US5302199A

    公开(公告)日:1994-04-12

    申请号:US976836

    申请日:1992-11-16

    IPC分类号: C09C1/00 C09C1/44

    摘要: The invention is interference pigments having improved covering power and high luster based on platelet-shaped substrates which, if desired, are coated with one or more films comprising one or more metal oxides and are obtainable by adding an aqueous carbon black dispersion and a solution of one or more metal salts to an aqueous suspension of the substrate at a pH suitable for hydrolysis of a film comprising the metal oxide(s) or hydroxide(s) and containing carbon black, in which the product obtained, after being separated off and, if desired, after washing and drying, is ignited at 700.degree.-900.degree. C. in an oxygen-containing atmosphere, during which carbon oxides escape.

    摘要翻译: 本发明是基于片状基材的具有改进的覆盖力和高光泽的干涉颜料,如果需要,其涂覆有一种或多种包含一种或多种金属氧化物的膜,并且可通过加入水性炭黑分散体和 一种或多种金属盐在适于水解包含金属氧化物或氢氧化物并含有炭黑的膜的pH的pH为基础的水性悬浮液中,其中得到的产物在分离后, 如果需要,在洗涤和干燥之后,在含氧气氛中在700-900℃下点燃,在此期间碳氧化物逸出。