High opacity TiO2 pigment and production method
    1.
    发明授权
    High opacity TiO2 pigment and production method 有权
    高不透明度TiO2颜料及其制备方法

    公开(公告)号:US07842131B2

    公开(公告)日:2010-11-30

    申请号:US11668629

    申请日:2007-01-30

    摘要: The invention relates to a rutile titanium dioxide pigment for use in decorative laminating papers that yields higher opacity of the papers compared to the prior art, as well as a method for its manufacture. The pigment displays a surface coating that contains aluminum phosphate, aluminum oxide, silicon oxide and titanium oxide. The silicon oxide is precipitated in fluffy form. The coated particles display a BET value of at least 15 m2/g.The manufacturing method is characterized in that an aluminum and a phosphorus component are first added to a TiO2 suspension. Thereafter, an alkaline silicon component, an acid-reacting titanium component and, optionally, a further pH-regulating component are added, the pH value being set in the range from 4 to 9 in this context.

    摘要翻译: 本发明涉及一种用于装饰层压纸的金红石二氧化钛颜料,其与现有技术相比产生较高的不透明度,以及其制造方法。 颜料显示含有磷酸铝,氧化铝,氧化硅和氧化钛的表面涂层。 氧化硅以蓬松形式沉淀。 涂覆的颗粒的BET值至少为15m 2 / g。 该制造方法的特征在于首先将铝和磷成分加入到TiO 2悬浮液中。 此后,加入碱性硅成分,酸反应钛成分和任选的其他pH调节成分,在此上下文中将pH值设定在4〜9的范围内。

    Surface-Treated Titanium Dioxide Pigments for Plastics and Method for Production
    4.
    发明申请
    Surface-Treated Titanium Dioxide Pigments for Plastics and Method for Production 审中-公开
    用于塑料的表面处理二氧化钛颜料和生产方法

    公开(公告)号:US20100125117A1

    公开(公告)日:2010-05-20

    申请号:US12619834

    申请日:2009-11-17

    IPC分类号: C08K3/22 B05D7/00

    摘要: A weather-resistant titanium dioxide pigment particularly suitable for use in engineering plastics, as well as to a method for its manufacture and to polymers containing the pigment. The titanium dioxide is provided with a surface coating that, from the inside to the outside, displays a SiO2 layer, an Al2O3 layer and an organic layer, where the maximum total Al2O3 content is 2.4% by weight and the organic layer contains at least one compound from the group comprising H-siloxanes, silicone oils and organically functionalised polysiloxanes. The manufacturing method is characterised in that an aqueous suspension of Al-doped titanium dioxide particles is milled in an agitator mill, and a SiO2 layer and an Al2O3 layer are then applied in batch mode, after which an organic layer is applied that contains at least one compound from the group comprising H-siloxanes, silicone oils and organically functionalised polysiloxanes.

    摘要翻译: 特别适用于工程塑料的耐候性二氧化钛颜料,以及其制造方法和含有颜料的聚合物。 二氧化钛被提供有表面涂层,其从内到外显示SiO 2层,Al 2 O 3层和有机层,其中最大总Al 2 O 3含量为2.4重量%,并且有机层包含至少一个 化合物由包含H-硅氧烷,硅油和有机官能化的聚硅氧烷组成。 该制造方法的特征在于,在搅拌机中研磨掺杂Al的二氧化钛颗粒的水性悬浮液,然后分批施加SiO 2层和Al 2 O 3层,然后施加至少含有有机层 一种来自包含H-硅氧烷,硅油和有机官能化聚硅氧烷的化合物。

    Method for the surface treatment of a titanium dioxide pigment
    9.
    发明授权
    Method for the surface treatment of a titanium dioxide pigment 有权
    二氧化钛颜料的表面处理方法

    公开(公告)号:US07147702B2

    公开(公告)日:2006-12-12

    申请号:US10889287

    申请日:2004-07-12

    IPC分类号: C09C1/36 C01G23/047 B32B5/16

    摘要: The invention relates to a method for the surface treatment of a titanium dioxide that leads to pigments with improved retention and improved opacity, where consistently high opacity can be obtained using less pigment. The method is characterised in that an aluminium component and a phosphorus component are first added to a TiO2 suspension, during which process its pH value does not drop below 10. The pH value of the suspension is subsequently lowered to below 9 by adding an acid component. The pigment produced by the method according to the invention is eminently suited to use in decorative laminating paper.

    摘要翻译: 本发明涉及一种用于表面处理二氧化钛的方法,其导致颜料具有改善的保留性和改善的不透明度,其中可以使用较少的颜料获得一致的高不透明度。 该方法的特征在于首先将铝组分和磷组分加入到TiO 2悬浮液中,在此过程中,其pH值不降至10以下。随后降低悬浮液的pH值 通过加入酸组分至低于9。 通过根据本发明的方法生产的颜料非常适合用于装饰层压纸。

    Method for the post-treatment of titanium dioxide pigments
    10.
    发明授权
    Method for the post-treatment of titanium dioxide pigments 失效
    二氧化钛颜料后处理方法

    公开(公告)号:US07135065B2

    公开(公告)日:2006-11-14

    申请号:US11179985

    申请日:2005-07-12

    IPC分类号: C09C1/36 C01G23/047 C01G23/08

    摘要: The invention relates to a method for the post-treatment of titanium dioxide, in order to produce particularly weather-resistant titanium dioxide pigments with good optical properties. The method is characterized in that, together with the hydrous oxides of tin and zirconium, at least one other from the group comprising aluminium, silicon and titanium is additionally precipitated onto the particle surface. The post-treatment components are added to the aqueous TiO2 suspension either in the acidic range (pH value of 3 at most) or in the alkaline range (pH value of 10 at least). The pH value is subsequently set to between 6 and 8. Final tempering of the pigment at elevated temperatures from over 125° C. to up to 500° C. can improve the tone b. The pigment is particularly suitable for use in paints, coatings and plastics.

    摘要翻译: 本发明涉及一种后处理二氧化钛的方法,以便制备具有良好光学性能的特别耐候的二氧化钛颜料。 该方法的特征在于,与锡和锆的水合氧化物一起,还包括从铝,硅和钛组成的组中的至少一种另外沉淀到颗粒表面上。 将后处理组分在酸性范围(pH值为3以下)或碱性范围(至少为p​​H值为10)中添加到TiO 2水溶液中。 pH值随后设定在6和8之间。颜料在高于125℃至高达500℃的高温下进行最终回火可改善色调b。 该颜料特别适用于油漆,涂料和塑料。