公开(公告)号：EP1476402A2

公开(公告)日：2004-11-17

申请号：EP03713314.7

申请日：2003-01-29

申请人： Millennium Inorganic Chemicals, Inc.

发明人： CARTER, Peter,Badger's Wood, Main Road ,  DAVID, Christopher, John ,  ROBINSON, Michael ,  TALATI, Kirit

IPC分类号： C02F1/66 ,  C02F1/64 ,  C02F9/00

CPC分类号： C02F9/00 ,  C02F1/5236 ,  C02F1/66 ,  C02F2101/203 ,  C02F2103/10 ,  C02F2103/16 ,  C22B3/44 ,  C22B34/1209 ,  C22B34/1259 ,  Y02P10/234

摘要： Processes for treating iron containing waste streams are provided. According to these processes, metal-containing compounds, particularly iron oxides are produced. These methods may, for example, be used in the porcessing of the waste streams from the chlorination of titanium-bearing raw materials and involve the use of certain combinations of neutralization and precipitation steps.

公开(公告)号：EP1386948A2

公开(公告)日：2004-02-04

申请号：EP03017267.0

申请日：2003-07-30

申请人： Millennium Inorganic Chemicals, Inc.

发明人： El-Shoubary, Modasser ,  Kostelnik, Robert ,  Wheddon, Charles

IPC分类号： C09C3/08 ,  C09C1/36 ,  C09C1/30 ,  C09C1/42

CPC分类号： C09C1/3692 ,  C01P2004/80 ,  C09C1/3661 ,  C09C1/3669 ,  C09C3/08

摘要： A treatment for pigments is provided. This treatment, which uses certain organosulfonic compounds, imparts improved physical and chemical qualities including lacing resistance, improved dispersion and decreased chemical reactivity when these treated pigments are incorporated into polymeric matrices. The addition of organosulfonic compounds may flexibly be incorporated into known processes at varying points, and are preferably added downstream of any filtering steps.

摘要翻译： 提供颜料的处理。 使用某些有机磺酸化合物的这种处理赋予了改善的物理和化学性质，包括结合抗性，改善的分散性和当将这些处理的颜料掺入聚合物基质时化学反应性降低。 有机磺酸化合物的添加可以灵活地并入到不同点的已知方法中，优选在任何过滤步骤的下游加入。

公开(公告)号：EP1381652A1

公开(公告)日：2004-01-21

申请号：EP02721170.5

申请日：2002-02-26

申请人： MILLENNIUM INORGANIC CHEMICALS, INC.

发明人： TEAR, Brian ,  STRATTON, John ,  BURNISTON, Robert

IPC分类号： C09C1/36

CPC分类号： C09C1/3653 ,  C01P2004/51 ,  C01P2004/60 ,  C01P2006/60 ,  C01P2006/90 ,  C09C1/36 ,  C09C1/3661

摘要： The present invention provides titanium dioxide pigments with improved gloss and/or durability. The titanium dioxide pigments are made by treating titanium dioxide with a plurality of metal salts under conditions suitable to form the titanium dioxide pigment having improved gloss and/or durability, wherein at least one metal salt is capable of providing a monovalent anion. Preferred pigments of the present invention are substantially-sulfate free.

公开(公告)号：EP1363976A1

公开(公告)日：2003-11-26

申请号：EP02728332.4

申请日：2002-02-04

申请人： MILLENNIUM INORGANIC CHEMICALS, INC.

发明人： KINNIARD, Stephen, P.

IPC分类号： C09C1/36 ,  C01G23/00

CPC分类号： C01G23/00 ,  C01P2006/80 ,  C09C1/3661 ,  C09C1/3669 ,  C09C1/3684

摘要： The present invention provides a process for generating titanium dioxide pigments that have reduced moisture retention. By leaching oxidizer discharge and removing alumina containing compounds, one is able to generate a low volatile pigmentary bases. These low volatile pigmentary bases may be processed into finished low volatile pigments that may be combined with polymers to form polymer matrices. These pigments may be incorporated into polymer matrices at high temperatures without significant lacing.

公开(公告)号：EP1297075A2

公开(公告)日：2003-04-02

申请号：EP01932714.7

申请日：2001-04-30

申请人： MILLENNIUM INORGANIC CHEMICALS, INC.

发明人： HIEW, Michael ,  CHEGWIDDEN, Philip

IPC分类号： C09C1/36

CPC分类号： C09C1/3661 ,  C01P2004/50 ,  C01P2004/62 ,  C01P2004/82 ,  C01P2006/60 ,  C01P2006/90 ,  Y10T428/2991

摘要： The present invention provides a coated titanium dioxide pigment which includes a base titanium dioxide pigment; a first deposit of a phosphate compound contiguous with the base titanium dioxide pigment; a deposit of a silica or zirconia compound contiguous with the phosphate deposit; a second deposit of a phosphate compound contiguous with the silica or zirconia compound; and a deposit of an alumina compound contiguous with the second phosphate deposit. Titanium dioxide pigments of the present invention are easily dispersible, and display excellent durability and gloss. The present invention also provides processes for preparing coated titanium dioxide pigments which include the steps of: preparing an aqueous slurry of base titanium dioxide pigment, adding a first phosphate compound to the slurry to form a first phosphate coating, adding a silica or zirconia compound to the slurry to form a silica compound coating, adding a second phosphate compound to the slurry, and adding an alumina compound coating to the slurry to form an alumina compound coating, thereby forming the coated titanium dioxide pigment.

公开(公告)号：EP1292646A2

公开(公告)日：2003-03-19

申请号：EP01928477.7

申请日：2001-04-12

申请人： MILLENNIUM INORGANIC CHEMICALS, INC.

发明人： Hiew, Michael ,  WANG, Yarw-Nan ,  HAMOR, Les ,  TEAR, Brian ,  MCINTYRE, Robert

IPC分类号： C09C1/36

CPC分类号： C09C1/3661 ,  C01P2004/04 ,  C01P2004/51 ,  C01P2004/60 ,  C01P2004/62 ,  C01P2004/82 ,  C01P2004/86 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/60 ,  C01P2006/80 ,  C01P2006/90 ,  C09C1/3653

摘要： Titanium dioxide pigments having improved gloss and durability are disclosed. These pigments are prepared by continuous processes, where pH, temperature, and addition times of hydrous silica and alumina coatings are carefully controlled.

摘要翻译： 本发明提供了制备具有改善的光泽性能的二氧化钛颜料的方法，其包括将碱性二氧化钛颜料的水性浆液加热到低于约75℃的温度，在二氧化硅化合物的低于约 75℃，形成二氧化硅涂覆的二氧化钛颜料; 并在低于约75℃的温度下用氧化铝化合物涂覆二氧化硅涂覆的二氧化钛颜料以形成具有改善的光泽度的二氧化钛颜料。