Preparation of effect pigments coated with metal oxides
    31.
    发明授权
    Preparation of effect pigments coated with metal oxides 失效
    制备涂有金属氧化物的效果颜料

    公开(公告)号:US4552593A

    公开(公告)日:1985-11-12

    申请号:US538274

    申请日:1983-10-03

    申请人: Werner Ostertag

    发明人: Werner Ostertag

    摘要: Effect pigments are prepared by a process in which a pigment substrate comprising flaky particles, of which from 10 to 90% by weight have a longest dimension of from 60 to 400 .mu.m and the remainder have a longest dimension of from 3 to 30 .mu.m, are treated, in a fluidized bed, with one or more metal chlorides and steam in the gas phase, at elevated temperatures. During this procedure, the particles are coated with metal oxide. After coating, the fraction having a particle size of from 3 to 30 .mu.m is separated off as the effect pigment.The coatings obtained adhere very firmly to the flaky particles.The pigments are used for coloring finishes, plastics, cosmetic products and glasses.

    摘要翻译: 效果颜料通过以下方法制备:其中包含片状颗粒的颜料底物的10至90重量%的最大尺寸为60至400μm,其余部分的最长尺寸为3至30μm 在流化床中与一种或多种金属氯化物和蒸汽在气相中在升高的温度下进行处理。 在此过程中,颗粒被金属氧化物涂覆。 涂布后,分离粒径为3〜30μm的级分作为效果颜料。 获得的涂层非常牢固地粘附在片状颗粒上。 颜料用于着色整理剂,塑料,化妆品和眼镜。

    Interference pigments for preparing forgeryproof documents
    35.
    发明授权
    Interference pigments for preparing forgeryproof documents 失效
    用于准备防伪文件的干涉颜料

    公开(公告)号:US5573584A

    公开(公告)日:1996-11-12

    申请号:US325178

    申请日:1995-04-21

    摘要: Interference pigments based on multiply coated plateletlike silicatic substrates comprisingA) a first layer comprising a colorless or selectively absorbing metal oxide with a high refractive index,B) a second, non-selectively absorbing, semitransparent layer consisting essentially of carbon, a metal or a metal oxide, and optionallyC) a third layer comprising a colorless or selectively absorbing metal oxide in combination with scattering color pigments which are complementary in color to the reflection color of the interference pigments are useful for preparing valuable documents that are forgeryproof.

    摘要翻译: PCT No.PCT / EP93 / 03351 Sec。 371日期1995年04月21日 102(e)日期1995年4月21日PCT 1993年11月30日PCT公布。 公开号WO94 / 13489 日期1994年6月23日基于多重涂覆的小片状硅底物的交换颜料,包括A)包含无色或选择性吸收的具有高折射率的金属氧化物的第一层,B)基本上由碳组成的第二非选择性吸收半透明层 ,金属或金属氧化物,以及任选的C)包含无色或选择性吸收金属氧化物的第三层以及与干涉颜料的反射颜色互补的散射着色颜料的组合可用于制备有价值的文献 伪装

    Thermostable bismuth vanadate/molybdate pigments
    36.
    发明授权
    Thermostable bismuth vanadate/molybdate pigments 失效
    耐热稳定的钒酸铋/钼酸盐颜料

    公开(公告)号:US4851049A

    公开(公告)日:1989-07-25

    申请号:US130652

    申请日:1987-12-09

    摘要: Thermostable bismuth vanadate/molybdate pigments are prepared by precipitating onto a pigment, obtained by calcination, of the formulaBi VO.sub.4 .cndot.Bi.sub.2 Mo O.sub.6where n is 0.2-2.5, in aqueous suspension at 70.degree.-100.degree. C. within the pH range from 4 to 9.5 a first SiO.sub.2 -containing layer using an alkali metal silicate solution of a magnesium hexafluorosilicate solution, maintaining the suspension at 70.degree.-100.degree. C. for not less than 1 hour, producing a thick coating on the precoated pigment by adding further alkali metal silicate solution, magnesium hexafluorosilicate solution or a mixture of the two within the pH range from 4 to 9.5, and finally depositing wax on the SiO.sub.2 -containing layer by means of a waxing emulsion/dispersion, the products showing, compared with the starting pigment, an appreciably improved thermal stability in plastics.

    摘要翻译: 热稳定的钒酸铋/钼酸盐颜料通过在pH为4范围内,在70℃-100℃的水悬浮液中沉淀到通过煅烧获得的式Bi VO 4 .Bi 2 MoO 6(其中n为0.2-2.5)的颜料上制备 使用六氟硅酸镁溶液的碱金属硅酸盐溶液至9.5的第一含SiO 2层,将悬浮液保持在70℃-100℃下不少于1小时,通过加入另外的碱在预涂颜料上产生厚的涂层 金属硅酸盐溶液,六氟硅酸镁溶液或两者的混合物在pH范围为4至9.5之间,最后通过打蜡乳液/分散体将蜡沉积在含SiO 2的层上,与起始颜料相比,产物显示出来 ,塑料的热稳定性明显提高。

    Lamellar pigments of the general formula Mn.sub.X -Al.sub.Y
Fe.sub.2-(X+Y) O.sub.3
    37.
    发明授权
    Lamellar pigments of the general formula Mn.sub.X -Al.sub.Y Fe.sub.2-(X+Y) O.sub.3 失效
    通式MnX-AlYFe2-(X + Y)O3的层状颜料

    公开(公告)号:US4826537A

    公开(公告)日:1989-05-02

    申请号:US111602

    申请日:1987-10-23

    申请人: Werner Ostertag

    发明人: Werner Ostertag

    摘要: Lamellar pigments are based on iron oxide of the general formula Mn.sub.X Al.sub.Y Fe.sub.2 -(X+Y)O.sub.3, where X is from 0.01 to 0.06 and Y is from 0 to 0.2. The pigments are prepared by hydrothermal treatment of an aqueous suspension which contains an iron hydroxide or iron oxide hydroxide,and an alkali metal hydroxide and/or alkali metal carbonate, in the presence of a manganese compound which is soluble in the reaction medium and in the presence or absence of an aluminum compound.The pigments are used for pigmenting coatings, printing inks, finishes, plastics, ceramic surfaces, glasses and cosmetic products.

    摘要翻译: 层状颜料基于通式MnXAlYFe2-(X + Y)O3的氧化铁,其中X为0.01至0.06,Y为0至0.2。 颜料通过在可溶于反应介质的锰化合物存在下水热处理含有氢氧化铁或氢氧化铁氢氧化物的水性悬浮液和碱金属氢氧化物和/或碱金属碳酸盐来制备, 存在或不存在铝化合物。 颜料用于着色涂料,印刷油墨,表面处理剂,塑料,陶瓷表面,眼镜和化妆品。

    Basic chromium aluminum sulfates and their preparation
    38.
    发明授权
    Basic chromium aluminum sulfates and their preparation 失效
    碱性硫酸铝及其制备方法

    公开(公告)号:US4629616A

    公开(公告)日:1986-12-16

    申请号:US589769

    申请日:1984-03-15

    摘要: The invention relates to basic chromium aluminum sulfates which are soluble in cold water and are of the general formulaCr.sub.x Al.sub.2-x (OH).sub.2 y. (SO.sub.4).sub.3-y.n H.sub.2 Owhere x is from 0.1 to 1.9, y is from 0.01 to 2 and n is from 4 to 24, and a process for the preparation thereof. The process comprises reacting chromium (III)--containing waste sulfuric acid having a water content of 20-50% by weight with aluminum oxide and/or aluminum oxide hydroxide and/or aluminum hydroxide at a temperature of 100.degree. to 200.degree. C. The molten product is converted to droplet form and allowed to solidify in free fall.

    摘要翻译: 本发明涉及可溶于冷水并具有通式Cr x Al 2-x(OH)2 y)的碱性铬酸铝硫酸盐。 (SO 4)3-y.nH 2 O,其中x为0.1至1.9,y为0.01至2,n为4至24,以及其制备方法。 该方法包括在100至200℃的温度下将含水量为20-50重量%的含铬(III)的废硫酸与氧化铝和/或氧化铝氢氧化物和/或氢氧化铝反应。 熔融产物转化为液滴形式,并在自由落体下固化。