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    • 10. 发明授权
    • Readily dispersible TiO.sub.2 pigment
    • 易分散的TiO2颜料
    • US4344799A
    • 1982-08-17
    • US203010
    • 1980-11-03
    • Klaus KohlerPeter WoditschHilmar RieckFritz Rodi
    • Klaus KohlerPeter WoditschHilmar RieckFritz Rodi
    • C09C1/36C09C1/32C09C3/00
    • C09C1/3692C01P2004/84
    • An inorganically after-treated TiO.sub.2 pigment with a coating of hydrophobicizing and hydrophilicizing organic substances, which pigment comprises more than about 95% by weight of TiO.sub.2, shows a loss on annealing of less than about 0.8% (after subtraction of the carbon content) and has a grindometer value smaller than about 30, corresponding to a value of more than about 5.6 on the Hegman scale, is produced by micronizing a mixture of an inorganically after-treated TiO.sub.2 pigment, an untreated TiO.sub.2 pigment and hydrophobicizing and hydrophilicizing organic substances, the after-treated pigment being employed in about 1 to 40% by weight of total TiO.sub.2 pigment and the hydrophobicing and hydrophilicizing substances being employed in about 0.3 to 5% by weight of TiO.sub.2 pigment. The pigments are readily dispersible which simplifies their use in pigmenting lacquers, plastics and paper.
    • 具有疏水化和亲水化有机物质的无机后处理的TiO 2颜料,该颜料包含大于约95重量%的TiO 2,退火时损失小于约0.8%(减去碳含量之后)和 通过将无机后处理的TiO 2颜料,未处理的TiO 2颜料和疏水化和亲水化的有机物质的混合物微粉化,产生小于约30的磨盘值,对应于Hegman规模的值大于约5.6, 后处理颜料用于总TiO 2颜料的约1至40重量%,并且疏水和亲水化物质用于约0.3至5重量%的TiO 2颜料。 颜料容易分散,这简化了它们在着色漆,塑料和纸张中的应用。