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    • 9. 发明授权
    • Composite pigments comprising titanium dioxide and carbonate and method for producing
    • 包含二氧化钛和碳酸酯的复合颜料及其制造方法
    • US08858701B2
    • 2014-10-14
    • US13930188
    • 2013-06-28
    • Uwe WilkenhoenerFrank Mersch
    • Uwe WilkenhoenerFrank Mersch
    • C09C1/36C09C1/02D21H27/00C09C1/00C09D7/12
    • C09D7/61C01P2004/04C01P2004/62C01P2006/62C01P2006/64C09C1/0084C09C1/3653C09D7/62D21H27/002
    • The invention relates to the manufacture of pigment-containing composite pigment particles containing titanium dioxide pigment particles and at least one inorganic and/or organic filler as extender, as well as calcium carbonate that is precipitated in the process, and their use for improving the pigment light-scattering efficiency in coatings, plastics and laminates. The extender is preferably selected from Ca-, Ca—Mg- and Mg-carbonates, natural and synthetic silicon dioxide and oxides and are manufactured in a combined process of precipitation and dispersion. Depending on the combination selected, the use of composite pigment particles according to the invention permits pigment savings with little or no loss of optical properties. Alternatively, if the pigment content remains unchanged, it is possible to achieve better values, e.g. for tinting strength. Particularly, a part or the whole TiO2 quantity in the user system can be replaced by the composite pigment particles according to the invention.
    • 本发明涉及含有二氧化钛颜料颗粒和至少一种无机和/或有机填料作为增量剂的含颜料的复合颜料颗粒的制造以及在该过程中沉淀的碳酸钙及其用于改进颜料的用途 涂料,塑料和层压板的光散射效率。 增量剂优选选自Ca-,Ca-Mg-和Mg-碳酸盐,天然和合成二氧化硅和氧化物,并且以沉淀和分散的组合方法制造。 根据所选择的组合,根据本发明的复合颜料颗粒的使用允许颜料节省很少或不损失光学性质。 或者,如果颜料含量保持不变,则可以获得更好的值,例如。 用于着色力。 特别地,用户系统中的部分或全部TiO 2量可以被根据本发明的复合颜料颗粒代替。