发明名称 |
TITANIUM DIOXIDE PIGMENT FEATURING GREAT OPACITY, AND METHOD FOR THE PRODUCTION THEREOF |
摘要 |
The invention relates to a rutile titanium dioxide pigment to be used in decorative paper that is provided with greater opacity compared to prior art as well as a method for the production thereof. The inventive pigment comprises a coating containing aluminum phosphate, aluminum oxide, silicon oxide, and titanium oxide while containing no significant amounts of a zirconium compound. The silicon oxide is loosely precipitated, the specific surface according to BET amounting to at least 15 m<SUP>2</SUP>/g. The inventive production method is characterized in that an aluminum component and an phosphorus component are initially added to a TiO<SUB>2</SUB>suspension, whereupon an alkaline silicon component, an acidically reacting titanium component, and an optional additional pH-regulating component are added, the pH value being adjusted to a value ranging from 4 to 9. |
申请公布号 |
WO2007085445(A3) |
申请公布日期 |
2007.11.29 |
申请号 |
WO2007EP00625 |
申请日期 |
2007.01.25 |
申请人 |
KRONOS INTERNATIONAL, INC. |
发明人 |
BLUEMEL, SIEGFRIED;DREWS-NICOLAI, LYDIA;JUERGENS, VOLKER;SCHMITT, VOLKER |
分类号 |
C09C1/36;D21H17/69 |
主分类号 |
C09C1/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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