发明公开
- 专利标题： CALCIUMPHOSPHAT-HALTIGE TITANDIOXID-KOMPOSITPIGMENTE UND VERFAHREN ZU IHRER HERSTELLUNG
- 专利标题（英）： Titanium dioxide composite pigments containing calcium phosphate and method for the production thereof
- 专利标题（中）： 磷酸钙含二氧化钛复合颜料及其制备方法
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申请号： EP14833502.9申请日： 2014-12-10
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公开(公告)号： EP3080207A1公开(公告)日： 2016-10-19
- 发明人: MERSCH, Frank , WILKENHOENER, Uwe
- 申请人： Kronos International, Inc.
- 申请人地址： Peschstr. 5 51373 Leverkusen DE
- 专利权人： Kronos International, Inc.
- 当前专利权人： Kronos International, Inc.
- 当前专利权人地址： Peschstr. 5 51373 Leverkusen DE
- 优先权： EP13002813 20131213
- 国际公布： WO2015086146 20150618
- 主分类号： C09C1/00
- IPC分类号： C09C1/00 ; C09C1/02 ; C09C1/36
摘要：
The invention relates to composite pigment particles containing calcium phosphate, to the production thereof and to the use thereof in coatings, plastics and laminates. The composite pigment particles contain titanium dioxide pigment particles and precipitated calcium phosphate. In one embodiment, the composite pigment particles additionally contain an inorganic and/or organic filler as an extender, preferably selected from the group of Ca, Ca-Mg and Mg-carbonate, natural and synthetic silicon dioxide and oxides. The composite pigment particles are produced in a combined process of dispersion and precipitation. The use of the titanium oxide-based composite pigment particles according to the invention enables pigment savings without or with only minor losses to visual properties, depending on the selected combination. Alternatively, better values can also be achieved with the same pigment content, such as in tinting strength. In particular, a part or the entire titanium dioxide share in the user system can be replaced by the composite pigment particles according to the invention.
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