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公开(公告)号：US20080116303A1
公开(公告)日：2008-05-22
申请号：US11935530
申请日：2007-11-06
IPC分类号： B02C17/00
CPC分类号： B02C17/16 , B02C17/183 , B02C23/02
摘要： A method for the agitator milling of solid particles, particularly of titanium dioxide, where the suspension with a maximum particle size of 2 μm is milled in closed-circuit mode and subjected to continuous classification by sedimentation in a tank after each pass through the mill. The method results in milled solid particles with narrower particle size distributions, particularly titanium dioxide pigments with improved optical properties, such as tinting strength and gloss.
摘要翻译： 固体颗粒，特别是二氧化钛的搅拌器研磨方法，其中最大粒径为2μm的悬浮液以闭路模式研磨，并在每次通过轧机后在罐中沉降进行连续分级。 该方法产生具有较窄粒度分布的研磨的固体颗粒，特别是具有改善的光学性能的二氧化钛颜料，如着色强度和光泽度。
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公开(公告)号：US20120247702A1
公开(公告)日：2012-10-04
申请号：US13429512
申请日：2012-03-26
CPC分类号： C09C1/3661 , C01P2004/86 , C01P2006/62 , C01P2006/80 , C09C1/3653 , D21H17/675 , D21H17/69 , D21H21/28 , D21H27/26
摘要： The invention relates to a method for the surface treatment of a titanium dioxide with aluminium phosphate and hydrous aluminium oxide that leads to pigments with improved greying resistance, while simultaneously maintaining good brightness and opacity.The method is characterised in that phosphoric acid is initially added to a TiO2 suspension with a pH value of at least 8, in which context the pH value drops to 3 or below. An alkaline aluminium compound is subsequently added, in which context the pH rises to at least 5, after which an acid aluminium compound is added, as a result of which a pH value of 4.5 to 7 is obtained.The pigment manufactured by the method according to the invention is eminently suitable for use in decorative laminating paper.
摘要翻译： 本发明涉及一种用磷酸铝和水合氧化铝对二氧化钛进行表面处理的方法，其导致具有改善耐灰变性的颜料，同时保持良好的亮度和不透明度。 该方法的特征在于，最初将磷酸加入pH值至少为8的TiO 2悬浮液中，其中pH值降至3或更低。 随后加入碱性铝化合物，其中pH升至至少5，之后加入酸性铝化合物，结果得到4.5至7的pH值。 通过本发明的方法制造的颜料特别适用于装饰层压纸。
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公开(公告)号：US08641870B2
公开(公告)日：2014-02-04
申请号：US13429512
申请日：2012-03-26
IPC分类号： D21H11/00
CPC分类号： C09C1/3661 , C01P2004/86 , C01P2006/62 , C01P2006/80 , C09C1/3653 , D21H17/675 , D21H17/69 , D21H21/28 , D21H27/26
摘要： The invention relates to a method for the surface treatment of a titanium dioxide with aluminum phosphate and hydrous aluminum oxide that leads to pigments with improved greying resistance, while simultaneously maintaining good brightness and opacity. The method is characterized in that phosphoric acid is initially added to a TiO2 suspension with a pH value of at least 8, in which context the pH value drops to 3 or below. An alkaline aluminum compound is subsequently added, in which context the pH rises to at least 5, after which an acid aluminum compound is added, as a result of which a pH value of 4.5 to 7 is obtained. The pigment manufactured by the method according to the invention is eminently suitable for use in decorative laminating paper.
摘要翻译： 本发明涉及一种用磷酸铝和水合氧化铝对二氧化钛进行表面处理的方法，其导致具有改善耐灰变性的颜料，同时保持良好的亮度和不透明度。 该方法的特征在于，最初将磷酸加入pH值至少为8的TiO 2悬浮液中，其中pH值降至3或更低。 随后加入碱性铝化合物，其中pH升至至少5，之后加入酸性铝化合物，结果得到4.5至7的pH值。 通过本发明的方法制造的颜料特别适用于装饰层压纸。
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公开(公告)号：US20070175363A1
公开(公告)日：2007-08-02
申请号：US11668629
申请日：2007-01-30
CPC分类号： C09C1/3661 , C01P2006/12 , Y10T428/24372 , Y10T428/2438 , Y10T428/24388 , Y10T428/2991 , Y10T428/2993
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 aluminium phosphate, aluminium 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 aluminium 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： 本发明涉及用于装饰层压纸的金红石型二氧化钛颜料，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。 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。
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公开(公告)号：US20050011408A1
公开(公告)日：2005-01-20
申请号：US10889287
申请日：2004-07-12
CPC分类号： D21H17/69 , C01P2006/62 , C01P2006/63 , C01P2006/64 , C09C1/3661 , D21H17/675 , Y10T428/2991
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，在该过程中，其pH值不降至10以下。随后将悬浮液的pH值降至低于9，通过加入酸组分 。 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。
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