公开(公告)号：US20100224480A1

公开(公告)日：2010-09-09

申请号：US12706767

申请日：2010-02-17

Applicant: Stephan Bloess ,  Lothar Elfenthal ,  Karsten Loehr

Inventor： Stephan Bloess ,  Lothar Elfenthal ,  Karsten Loehr

IPC: C08F6/12 ,  C08L27/18

CPC classification number: B01D21/01 ,  C02F1/30 ,  C02F1/32 ,  C02F1/725 ,  C02F2101/301 ,  C02F2305/10

Abstract: The invention relates to a method for photocatalytic separation of a dispersed substance from a surfactant-containing dispersion. The surfactant-containing dispersion contains at least one dispersant, one dispersed substance, one surfactant and one photocatalyst. Irradiation of the photocalyst causes the decomposition or modification of the surfactant allowing for the separation of the dispersed substance from the dispersant.

Abstract translation: 本发明涉及一种从含表面活性剂的分散体中分散物质的光催化分离方法。 含表面活性剂的分散体含有至少一种分散剂，一种分散物质，一种表面活性剂和一种光催化剂。 光照射的照射引起表面活性剂的分解或改性，从而使分散物质与分散剂分离。

公开(公告)号：US5215580A

公开(公告)日：1993-06-01

申请号：US835749

申请日：1992-02-06

Applicant: Lothar Elfenthal ,  Edgar Klein ,  Franz Rosendahl

Inventor： Lothar Elfenthal ,  Edgar Klein ,  Franz Rosendahl

IPC: C01G23/053 ,  C09C1/36

CPC classification number: B82Y30/00 ,  C01G23/0536 ,  C09C1/3607 ,  C09C1/3653 ,  C01P2002/84 ,  C01P2004/10 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/60

Abstract: A process produces fine particle titanium dioxide essentially transparent to visible light and essentially UV radiation absorbing. During preparation of the titanium dioxide product, tin dioxide with a particle size of 1 to 10 nm, and preferably 1 to 4 nm, is added, in an amount of 0.5 to 10 weight percent with respect to TiO.sub.2. The particle size of the titanium dioxide is specifically adjusted by the tin dioxide addition. Acicular particles are rounded by heat-treatment between 300.degree. and 800.degree. C., and preferably between 400.degree. and 600.degree. C. The particles can be post-treated to produce a coating of inorganic and/or organic substances. The fine particle titanium dioxide can be prepared by the decomposition of sodium titanate with hydrochloric acid or by suitable hydrolysis of a tetravalent titanium compound which leads to rutile formation. A currently preferred way of adding the tin dioxide is as a colloidal sol which is prepared by the reaction of tin tetrachloride with water at a maximum of 22.degree. C.

Abstract translation: 一种方法产生对可见光基本上透明的基本上UV吸收的细颗粒二氧化钛。 在二氧化钛制品的制备过程中，相对于TiO 2，添加粒径为1〜10nm，优选为1〜4nm的二氧化锡，其含量为0.5〜10重量％。 二氧化钛的粒径通过添加二氧化锡进行了特别的调整。 针状颗粒通过在300至800℃之间的热处理，优选在400至600℃之间进行热处理而被倒圆。可以对颗粒进行后处理以产生无机和/或有机物质的涂层。 细粒二氧化钛可以通过用盐酸分解钛酸钠或通过适当水解导致金红石形成的四价钛化合物来制备。 目前优选的添加二氧化锡的方法是通过四氯化锡与水在最高22℃反应制备的胶体溶胶。

公开(公告)号：US07166157B2

公开(公告)日：2007-01-23

申请号：US10638154

申请日：2003-08-08

Applicant: Lydia Drews-Nicolai ,  Siegfried Bluemel ,  Lothar Elfenthal ,  Volker Schmitt

Inventor： Lydia Drews-Nicolai ,  Siegfried Bluemel ,  Lothar Elfenthal ,  Volker Schmitt

IPC: C09C1/36 ,  C01G23/047 ,  B32B5/16 ,  B32B9/06

CPC classification number: C09C1/3661 ,  C01P2006/60 ,  Y10T428/2982 ,  Y10T428/2991 ,  Y10T428/31851

Abstract: A method and material for improved TiO2 pigment for paper and laminates is described. Phosphorous, titanium, and aluminum compounds are successively added to a TiO2 pigment suspension. Resulting pigments show improved greying resistance and hiding power over prior art pigments, and show improved results as pigments in tests of paper and laminates.

Abstract translation: 描述了用于纸和层压材料的用于改进TiO 2颜料的方法和材料。 将磷，钛和铝化合物依次加入到TiO 2颜料悬浮液中。 所得颜料显示出比现有技术的颜料改善的耐灰色性和遮盖力，并且在纸和层压材料的测试中显示出改善的结果作为颜料。

公开(公告)号：US5932757A

公开(公告)日：1999-08-03

申请号：US877556

申请日：1997-06-17

Applicant: Burkhard Standke ,  Roland Edelmann ,  Albert Frings ,  Michael Horn ,  Peter Jenkner ,  Ralf Laven ,  Jaroslaw Monkiewicz ,  Lothar Elfenthal ,  Hans-Hermann Luginsland

Inventor： Burkhard Standke ,  Roland Edelmann ,  Albert Frings ,  Michael Horn ,  Peter Jenkner ,  Ralf Laven ,  Jaroslaw Monkiewicz ,  Lothar Elfenthal ,  Hans-Hermann Luginsland

IPC: C07F7/18 ,  B01J2/30 ,  C07F7/08 ,  C07F7/21 ,  C08G77/04 ,  C09D183/04

CPC classification number: B01J2/30 ,  C07F7/0859 ,  C07F7/21 ,  C08G77/045 ,  C09D183/04

Abstract: A mixture of oligomers of alkylalkoxysilanes condensed in the chain and/or cyclic form, said mixture of oligomers containing less than 2% by weight of free alcohols and the condensed alkoxysilanes satisfying formula I: ##STR1## wherein R is an alkyl group having 3 to 18 carbon atoms, and each R' is a member (i) selected from the group consisting of methyl, ethyl or hydrogen, or is (ii) methyl or hydrogen, or is (iii) ethyl or hydrogen, the degree of oligomerization being in the range 2.ltoreq.x.ltoreq.20 and the quotient of the molar ratio �Si/alkoxy group!.gtoreq.1; and/orsatisfying formula II: ##STR2## in which R is an alkyl group having 3 to 18 carbon atoms, and each R' is a member (i) selected from the group consisting of methyl, ethyl or hydrogen, or is (ii) methyl or hydrogen or is (iii) ethyl or hydrogen, the degree of oligomerization being x.gtoreq.3 and the quotient of the molar ratio �Si/alkoxy group!.gtoreq.1.

Abstract translation: 以链和/或环状缩合的烷基烷氧基硅烷的低聚物的混合物，所述含低于2重量％游离醇的低聚物混合物和满足式I的缩合烷氧基硅烷：其中R是具有3至18个碳原子的烷基 ，并且每个R'是选自甲基，乙基或氢的成员（i），或（ii）甲基或氢，或（iii）乙基或氢，低聚度的范围为2 = 1的商; 和/或满足式II：其中R是具有3至18个碳原子的烷基，并且每个R'是选自甲基，乙基或氢的成员（i），或者是（ⅱ）甲基或 氢或是（ⅲ）乙基或氢，低聚度为x≥3，摩尔比[Si /烷氧基]> = 1的商。

公开(公告)号：US20080260626A1

公开(公告)日：2008-10-23

申请号：US12046149

申请日：2008-03-11

Applicant: Stephan Peter Bloss ,  Bruno Charruey ,  Lothar Elfenthal ,  Peter Gross ,  Volker Schmitt

Inventor： Stephan Peter Bloss ,  Bruno Charruey ,  Lothar Elfenthal ,  Peter Gross ,  Volker Schmitt

IPC: C01G23/047 ,  B01J27/043

CPC classification number: B01J21/063 ,  B01J35/004 ,  B01J35/023 ,  B01J35/10 ,  B01J35/109

Abstract: A powdery photocatalyst based on titanium dioxide displays a bimodal particle size distribution of primary particles, with one particle component under about 30 nm and a second particle component over about 100 nm. The photocatalyst is manufactured by mixing at least two TiO2 components. One component is a TiO2 photocatalyst which is active in UV light and/or in visible light and which displays a specific surface according to BET of at least about 120 m2/g. The second component is anatase and/or rutile displaying a specific surface according to BET of less than about 50 m2/g. The two components are contained in the photocatalyst at a weight ratio of 1:1000 to 1000:1.

Abstract translation: 基于二氧化钛的粉状光催化剂显示一次粒子的双峰粒径分布，一个粒子成分在约30nm以下，第二粒子成分在约100nm以上。 光催化剂是通过混合至少两种TiO 2成分来制造的。 一种组分是在UV光和/或可见光中有活性的TiO 2光催化剂，其表现出根据BET的比表面积至少为约120μm2 / G。 第二组分是锐钛型和/或金红石，根据BET小于约50m 2 / g显示比表面积。 两种组分以1：1000至1000：1的重量比包含在光催化剂中。

公开(公告)号：US06340387B1

公开(公告)日：2002-01-22

申请号：US09515570

申请日：2000-02-29

Applicant: Jürgen Orth-Gerber ,  Lothar Elfenthal ,  Siegfried Blümel

Inventor： Jürgen Orth-Gerber ,  Lothar Elfenthal ,  Siegfried Blümel

IPC: C09C304

CPC classification number: C09C1/3676 ,  C01P2006/19 ,  C09C1/3669 ,  C09C1/3692 ,  C09C3/006 ,  C09C3/08 ,  C09C3/10 ,  Y10T428/2991

Abstract: A method for preparing high quality pigments having improved wettability, dispersibility and gloss characteristics, which method comprises grinding a pigment base material in a jet mill in the presence of an organic grinding aid, recovering ground pigment particles having a first organic layer, comprising the organic grinding aid, and treating the recovered pigment particles with an organic material, forming a second organic layer on the pigment particles, for improving the wettability, dispersibility and gloss characteristics of the treated pigment particles. Titanium dioxide, both untreated and pretreated with an inorganic coating, may be processed according to the method herein to yield high quality titanium dioxide pigment having improved wettability, dispersibility and gloss characteristics. The titanium dioxide pigment is particularly suitable for use in water-thinnable paint systems.

Abstract translation: 一种制备具有改善的润湿性，分散性和光泽特性的高品质颜料的方法，所述方法包括在有机研磨助剂的存在下在喷射磨中研磨颜料基材，回收具有第一有机层的研磨颜料颗粒，其包含有机 研磨助剂和用有机材料处理回收的颜料颗粒，在颜料颗粒上形成第二有机层，以改善处理的颜料颗粒的润湿性，分散性和光泽特性。 可以根据本文的方法处理未处理和用无机涂层预处理的二氧化钛，以产生具有改善的润湿性，分散性和光泽特性的高品质二氧化钛颜料。 二氧化钛颜料特别适合用于水稀释涂料体系。

公开(公告)号：US5451252A

公开(公告)日：1995-09-19

申请号：US333689

申请日：1994-11-03

Applicant: Lothar Elfenthal ,  Rolf Schwindt ,  Manfred Kluwig

Inventor： Lothar Elfenthal ,  Rolf Schwindt ,  Manfred Kluwig

IPC: C09C1/36 ,  C09C3/00 ,  C01G23/00

CPC classification number: B82Y30/00 ,  C09C1/3607 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2004/10 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/64 ,  C01P2006/60

Abstract: Subpigmentary titanium dioxide with decreased photoactivity is produced if known ions for increasing photostability in titanium dioxide pigments are not deposited on the surface of the subpigmentary particles, but instead are included intracrystallinely in the pigment particle (i.e., doped). In a preferred process for preparation of doped subpigmentary titanium dioxide particles, an acid solution containing the dopant is added in two stages to a suspension of subpigmentary titanium dioxide.

Abstract translation: 如果用于提高二氧化钛颜料的光稳定性的已知离子不会沉积在次级色素颗粒的表面上，而是结晶地包含在颜料颗粒中（即，掺杂），则产生具有降低的光活性的二色性颜料。 在制备掺杂的有色二价二氧化钛颗粒的优选方法中，将含有掺杂剂的酸溶液分两步加入到色素二价钛的悬浮液中。