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1.发明申请Method for Coating the Surface of Inorganic Particles with Silicon Dioxide and at Least One Further Inorganic Compound 有权用二氧化硅和至少一种其他无机化合物涂覆无机颗粒表面的方法公开(公告)号：US20160045933A1
公开(公告)日：2016-02-18
申请号：US14818546
申请日：2015-08-05
Applicant: Kronos International, Inc.
Inventor： Norbert Beyer , Jud-Reginauld FidaIgo-Estevez , Heiko Frahm , Siegfried Bluemel
CPC classification number: B05D3/0466 , B05D7/544 , C01P2002/85 , C01P2004/03 , C01P2004/62 , C01P2006/60 , C09C1/3661 , C09C3/063
Abstract: The invention relates to a method for coating the surface of inorganic particles in an aqueous phase, particularly of titanium dioxide pigment particles, with a dense skin of silicon dioxide and at least one further inorganic compound, particularly with aluminium oxide, where the coating largely consists of separate layers. Titanium dioxide pigment particles, treated with SiO2 and Al2O3 according to the invention, are characterised by improved tinting strength, reduced acid solubility and an isoelectric point shifted towards higher pH values.
Abstract translation: 本发明涉及一种在水相（特别是二氧化钛颜料颗粒）中涂覆无机颗粒的表面的方法，其具有二氧化硅致密表皮和至少一种其它无机化合物，特别是氧化铝，其中涂层主要包括 的单独层。 根据本发明用SiO 2和Al 2 O 3处理的二氧化钛颜料颗粒的特征在于改进的着色强度，降低的酸溶解性和等电点转移到更高的pH值。
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公开(公告)号：US09962732B2
公开(公告)日：2018-05-08
申请号：US14818546
申请日：2015-08-05
Applicant: Kronos International, Inc.
Inventor： Norbert Beyer , Jud-Reginauld Fidalgo-Estevez , Heiko Frahm , Siegfried Bluemel
CPC classification number: B05D3/0466 , B05D7/544 , C01P2002/85 , C01P2004/03 , C01P2004/62 , C01P2006/60 , C09C1/3661 , C09C3/063
Abstract: The invention relates to a method for coating the surface of inorganic particles in an aqueous phase, particularly of titanium dioxide pigment particles, with a dense skin of silicon dioxide and at least one further inorganic compound, particularly with aluminum oxide, where the coating largely consists of separate layers. Titanium dioxide pigment particles, treated with SiO2 and Al2O3 according to the invention, are characterized by improved tinting strength, reduced acid solubility and an isoelectric point shifted towards higher pH values.
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公开(公告)号：US20170198148A1
公开(公告)日：2017-07-13
申请号：US15388009
申请日：2016-12-22
Applicant: Kronos International, Inc.
Inventor： Norbert Beyer
CPC classification number: C09C1/3661 , B01J2/006 , C01P2006/12 , C09C3/063
Abstract: The invention relates to a method for coating the surface of a substrate, such as inorganic particles, with a metal oxide, wherein a reduced mass-related specific surface area of the metal oxide coating is achieved. In particular, the invention relates to the surface coating of titanium dioxide pigment particles with aluminum oxide.
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