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    • 3. 发明授权
    • Surface modified particles and method of making the same
    • 表面改性颗粒及其制造方法
    • US5401313A
    • 1995-03-28
    • US016819
    • 1993-02-10
    • William W. SuppleeJames T. Will, Jr.
    • William W. SuppleeJames T. Will, Jr.
    • C04B14/02C04B20/12C09C1/24C09C3/06C09C3/08C09D5/44H04Q11/02
    • C04B20/12C09C1/24C01P2004/84C01P2006/40C01P2006/60
    • This invention relates to modifying the surface of particles for improved dispersion characteristics in aqueous, solvent, resinous, polymeric, cementitious or the like application systems. In particular, this invention relates to a pigment or filler particle whose surface is coated with at least one electric charge modifying agent and at least one dispersion promoting agent, which has improved dispersibility, coloring, handling, and other processing properties in application systems. The electric charge modifying agent may be selected from the group of Mg, Ca, Ba, Sr, Ti, V, Zr, Cr, Mn, Fe, Co, Ni, Cu, Zn, and Al. The dispersion promoting agent may be selected from the group of stearates, acetates, alkylphenols, cellulosics, waxes, lignins, polyacrylics, polyepoxies, polyurethanes, polyethylenes, polystyrenes and polypropylenes, and polymers having functional groups of alcohols, glycols, aldehydes, amides and carboxylic acids. Iron oxide is the preferred pigment particle.
    • 本发明涉及改进颗粒表面以改善水性,溶剂,树脂,聚合物,水泥等应用系统中的分散特性。 特别地,本发明涉及其表面涂覆有至少一种电荷改性剂和至少一种分散促进剂的颜料或填料颗粒,其在涂布体系中具有改进的分散性,着色力,处理性和其它加工性能。 电荷改性剂可以选自Mg,Ca,Ba,Sr,Ti,V,Zr,Cr,Mn,Fe,Co,Ni,Cu,Zn和Al中的一种。 分散促进剂可以选自硬脂酸酯,乙酸酯,烷基酚,纤维素,蜡,木质素,聚丙烯酸,聚苯乙烯,聚氨酯,聚乙烯,聚苯乙烯和聚丙烯中的一种,醇,二醇,醛,酰胺和羧酸的官能团 酸。 氧化铁是优选的颜料颗粒。