Method for conditioning organic pigments
    3.
    发明授权
    Method for conditioning organic pigments 有权
    有机颜料调理方法

    公开(公告)号:US06410619B2

    公开(公告)日:2002-06-25

    申请号:US09444589

    申请日:1999-11-22

    IPC分类号: C09B6750

    摘要: This invention relates to a process for preparing conditioned organic pigments by (a) milling a mixture comprising: (1) one or more crude organic pigments; (2) at least about 0.1% by weight, relative to the organic pigment, of one or more acrylic copolymer dispersants; and (3) 0 to about 100 parts by weight, relative to the organic pigment, of a milling liquid in which the organic pigment is substantially insoluble; and (b) isolating the milled organic pigment.

    摘要翻译: 本发明涉及通过(a)研磨混合物来制备调节的有机颜料的方法,所述混合物包含:(1)一种或多种粗有机颜料;(2)相对于有机颜料,至少约0.1重量% 更多丙烯酸共聚物分散剂; 和(3)相对于有机颜料0至约100重量份的有机颜料基本上不溶的研磨液体; 和(b)分离研磨的有机颜料。

    Aqueous coating compositions having improved transparency
    4.
    发明授权
    Aqueous coating compositions having improved transparency 失效
    具有改善的透明度的水性涂料组合物

    公开(公告)号:US06660793B1

    公开(公告)日:2003-12-09

    申请号:US09594422

    申请日:2000-06-15

    IPC分类号: C08K308

    摘要: Transparent iron oxide pigment dispersions which produce waterborne coating compositions having excellent transparency and reduced haze are provided. The dispersions contain dispersed pigment, an aqueous carrier, and a mixture of water-dispersible acrylic copolymer dispersants, the mixture containing at least one acrylic copolymer dispersant having acid functional groups, at least one acrylic copolymer dispersant having phosphate functional groups, and optionally at least one acrylic copolymer dispersant having alkyl amino groups and preferably benzyl groups in the pigment anachoring segment. Such pigment dispersions are useful in forming automotive waterborne paints, particularly “metallic” automotive paints.

    摘要翻译: 提供了产生具有优异透明度和降低雾度的水性涂料组合物的透明氧化铁颜料分散体。 分散体含有分散的颜料,水性载体和水分散性丙烯酸共聚物分散剂的混合物,所述混合物含有至少一种具有酸官能团的丙烯酸共聚物分散剂,至少一种具有磷酸酯官能团的丙烯酸共聚物分散剂,以及任选地至少 一种丙烯酸共聚物分散剂,其具有烷基氨基,并且优选在颜料分馏段中具有苄基。 这种颜料分散体可用于形成汽车水性涂料,特别是“金属”汽车涂料。

    Aqueous graft copolymer pigment dispersants
    8.
    发明授权
    Aqueous graft copolymer pigment dispersants 有权
    水性接枝共聚物颜料分散剂

    公开(公告)号:US06599973B1

    公开(公告)日:2003-07-29

    申请号:US09670359

    申请日:2000-09-27

    IPC分类号: C08L5100

    摘要: A polymeric dispersant for pigments based on an acrylic graft copolymer wherein the graft copolymer has a weight average molecular weight of about 5,000-100,000 and comprises a hydrophobic polymeric backbone and discrete anionic and nonionic hydrophilic side chains attached to the backbone. These graft copolymers are useful as dispersants in aqueous systems, and are particularly useful in formulating exterior water borne coatings for automobiles and trucks.

    摘要翻译: 用于基于丙烯酸接枝共聚物的颜料的聚合物分散剂,其中所述接枝共聚物的重均分子量为约5,000-100,000,并且包含疏水性聚合物主链和连接到主链上的离散阴离子和非离子亲水侧链。 这些接枝共聚物可用作水系统中的分散剂,并且特别可用于配制用于汽车和卡车的外部水性涂料。