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1. 发明申请

US20060188772A1 Noble metal nanoparticles, a process for preparing these and their use 失效
公开(公告)号：US20060188772A1
公开(公告)日：2006-08-24
申请号：US11405913
申请日：2006-04-17
申请人： Karl-Anton Starz , Dan Goia , Joachim Koehler , Volker Banisch
发明人： Karl-Anton Starz , Dan Goia , Joachim Koehler , Volker Banisch
IPC分类号： H01M4/86 , H01B1/22 , B05D5/12 , H01M4/88 , B01J31/00
CPC分类号： B22F1/0022 , B01J13/0043 , B01J23/462 , B01J35/0013 , B22F1/0018 , B22F1/0059 , B22F2998/00 , B82Y30/00 , H01M4/8605 , H01M4/92 , H01M4/926 , H01M8/1004 , Y02P70/56
摘要： Nanoparticles which contain noble metals alone or noble metals in combination with base metals. The nanoparticles are embedded in an aqueous solution of a temporary stabilizer based on a polysaccharide.

2. 发明授权

US08361921B2 Noble metal nanoparticles, a process for preparing these and their use 失效
公开(公告)号：US08361921B2
公开(公告)日：2013-01-29
申请号：US13309677
申请日：2011-12-02
申请人： Karl-Anton Starz , Dan Goia , Joachim Koehler , Volker Bänisch
发明人： Karl-Anton Starz , Dan Goia , Joachim Koehler , Volker Bänisch
IPC分类号： H01M4/88 , H01M4/02 , H01M4/36 , B01J23/40
CPC分类号： B22F1/0022 , B01J13/0043 , B01J23/462 , B01J35/0013 , B22F1/0018 , B22F1/0059 , B22F2998/00 , B82Y30/00 , H01M4/8605 , H01M4/92 , H01M4/926 , H01M8/1004 , Y02P70/56
摘要： Nanoparticles which contain noble metals alone or noble metals in combination with base metals. The nanoparticles are embedded in an aqueous solution of a temporary stabilizer based on a polysaccharide.

3. 发明授权

US08071259B2 Noble metal nanoparticles, a process for preparing these and their use 失效
标题翻译：贵金属纳米粒子，这些制备方法及其应用
公开(公告)号：US08071259B2
公开(公告)日：2011-12-06
申请号：US11405913
申请日：2006-04-17
申请人： Karl-Anton Starz , Dan Goia , Joachim Koehler , Volker Bänisch
发明人： Karl-Anton Starz , Dan Goia , Joachim Koehler , Volker Bänisch
IPC分类号： H01M4/02 , H01M6/04 , H01M8/00 , H01M8/10 , H01M4/88 , B05D5/12
CPC分类号： B22F1/0022 , B01J13/0043 , B01J23/462 , B01J35/0013 , B22F1/0018 , B22F1/0059 , B22F2998/00 , B82Y30/00 , H01M4/8605 , H01M4/92 , H01M4/926 , H01M8/1004 , Y02P70/56
摘要： Nanoparticles which contain noble metals alone or noble metals in combination with base metals. The nanoparticles are embedded in an aqueous solution of a temporary stabilizer based on a polysaccharide.
摘要翻译：含有贵金属或贵金属与贱金属组合的纳米颗粒。将纳米颗粒嵌入基于多糖的临时稳定剂的水溶液中。

4. 发明申请

US20120077671A1 NOBLE METAL NANOPARTICLES, A PROCESS FOR PREPARING THESE AND THEIR USE 失效
标题翻译： NOBLE金属纳米颗粒，其制备方法及其用途
公开(公告)号：US20120077671A1
公开(公告)日：2012-03-29
申请号：US13309677
申请日：2011-12-02
申请人： Karl-Anton Starz , Dan Goia , Joachim Koehler , Volker Bänisch
发明人： Karl-Anton Starz , Dan Goia , Joachim Koehler , Volker Bänisch
IPC分类号： B01J21/18 , B01J37/02 , B82Y30/00
CPC分类号： B22F1/0022 , B01J13/0043 , B01J23/462 , B01J35/0013 , B22F1/0018 , B22F1/0059 , B22F2998/00 , B82Y30/00 , H01M4/8605 , H01M4/92 , H01M4/926 , H01M8/1004 , Y02P70/56
摘要： Nanoparticles which contain noble metals alone or noble metals in combination with base metals. The nanoparticles are embedded in an aqueous solution of a temporary stabilizer based on a polysaccharide.
摘要翻译：含有贵金属或贵金属与贱金属组合的纳米颗粒。将纳米颗粒嵌入基于多糖的临时稳定剂的水溶液中。

5. 发明申请

US20060090600A1 Polyol-based method for producing ultra-fine copper powders 审中-公开
标题翻译：用于生产超细铜粉的多元醇方法
公开(公告)号：US20060090600A1
公开(公告)日：2006-05-04
申请号：US10981077
申请日：2004-11-03
申请人： Dan Goia , Daniel Andreescu , Brendan Farrell
发明人： Dan Goia , Daniel Andreescu , Brendan Farrell
IPC分类号： B22F9/24
CPC分类号： C23C26/00 , B22F1/0011 , B22F9/24 , B82Y30/00 , Y10T428/12014
摘要： The present invention provides a metallic composition, which contains a plurality of ultra-fine metallic particles (e.g., ultra-fine copper, nickel, or silver particles) having at least one desirable feature, such as, tight size distribution, low degree of agglomeration, and high degree of crystallinity and oxidation resistance. The present invention further provides a method for forming the ultra-fine metallic particles. Also provided are a substance or substrate coated with the ultra-fine metallic particles and a method of coating a substance or substrate with the ultra-fine metallic particles. Furthermore, the present invention provides a method of controlling the size of ultra-fine metal particles formed in a reducing reaction in a liquid. Also provided is a method for producing ultra-fine metallic particles, which utilizes a concentrated reaction system.
摘要翻译：本发明提供一种金属组合物，其含有多个具有至少一个所需特征的超细金属颗粒（例如，超细铜，镍或银颗粒），例如紧密的尺寸分布，低附聚度，并具有高度的结晶度和抗氧化性。本发明还提供了一种形成超细金属颗粒的方法。还提供了涂覆有超细金属颗粒的物质或基材以及用超细金属颗粒涂覆物质或基材的方法。此外，本发明提供一种控制在液体中还原反应中形成的超细金属颗粒的尺寸的方法。还提供了利用浓缩反应体系制造超细金属颗粒的方法。

6. 发明授权

US07842274B2 Process for manufacture of silver-based particles and electrical contact materials 有权
标题翻译：银基颗粒和电接触材料的制造方法
公开(公告)号：US07842274B2
公开(公告)日：2010-11-30
申请号：US11394826
申请日：2006-03-31
申请人： Dan Goia , Sebastian Fritzsche , Bernd Kempf , Peter Braumann , Thierry Charles Simon Vandevelde
发明人： Dan Goia , Sebastian Fritzsche , Bernd Kempf , Peter Braumann , Thierry Charles Simon Vandevelde
IPC分类号： C01G3/02
CPC分类号： C01G5/00 , B22F1/0014 , B22F1/0018 , B22F9/24 , B82Y30/00 , C01P2004/64 , C01P2006/40 , H01H1/021 , H01H1/0233 , H01H1/0237 , H01H1/027 , H01H11/048 , H01R13/03
摘要： The invention is directed to a process for manufacture of fine precious metal containing particles, specifically silver-based particles and silver-based contact materials via an intermediate silver(+1)-oxide species.The process comprises in a first step the formation of a thermally instable silver (+1)-oxide species by adding a base to an aqueous silver salt solution comprising an organic dispersing agent. Due to the presence of the organic dispersing agent, the resulting silver (+1)-oxide species is thermally instable, thus the species is decomposing to metallic silver at temperature lower than 100° C.The process optionally may comprise the addition of a powdered compound selected from the group of inorganic oxides, metals, and carbon-based compounds. Furthermore the process may contain additional separating and drying steps.The process is versatile, cost efficient and environmentally friendly and is used for the manufacture of silver-based particles and electrical contact materials. Silver nanoparticles made according to the process are characterized by a narrow particle size distribution. Electrical contact materials manufactured according to the process reveal improved contact welding properties.
摘要翻译：本发明涉及通过中间体（1+） - 氧化物物质制造含贵金属微粒，特别是银基颗粒和银基接触材料的方法。该方法包括在第一步骤中通过向包含有机分散剂的银盐溶液水溶液中加入碱形成热不稳定的银（+1） - 氧化物种类。由于存在有机分散剂，所得到的（+1）氧化物物质是不稳定的，因此该物质在低于100℃的温度下分解成金属银。该方法任选地可以包括添加粉末状选自无机氧化物，金属和碳基化合物的化合物。此外，该方法可以包含另外的分离和干燥步骤。该方法具有通用性，成本效益和环保性，并用于制造银基颗粒和电接触材料。根据该方法制备的银纳米颗粒具有窄的粒度分布。根据该方法制造的电接触材料显示改善的接触焊接性能。

7. 发明申请

US20060090596A1 Aqueous-based method for producing ultra-fine metal powders 有权
公开(公告)号：US20060090596A1
公开(公告)日：2006-05-04
申请号：US10978153
申请日：2004-10-29
申请人： Dan Goia , Daniel Andreescu , Christopher Eastman
发明人： Dan Goia , Daniel Andreescu , Christopher Eastman
IPC分类号： B22F9/24
CPC分类号： B22F1/0022 , B22F9/24 , B22F2998/00 , B82Y30/00 , C23C24/00 , C23C30/00 , Y10T428/12028 , B22F1/0018
摘要： The present invention provides a method for forming compositions having a plurality of ultra-fine metallic particles, and the metallic composition produced therewith. Also provided is a substrate coated with the plurality of ultra-fine metallic particles obtained in accordance with the method of the present invention.

8. 发明授权

US07566437B2 Process for manufacture of silver-based composite powders for electrical contact materials and composite powders so produced 有权
标题翻译：制造用于电接触材料和复合粉末的银基复合粉末的方法
公开(公告)号：US07566437B2
公开(公告)日：2009-07-28
申请号：US11395328
申请日：2006-03-31
申请人： Dan Goia , Bernd Kempf , Inge Fallheier , Roger Wolmer , Andreas Koffler
发明人： Dan Goia , Bernd Kempf , Inge Fallheier , Roger Wolmer , Andreas Koffler
IPC分类号： C01G5/00
CPC分类号： B22F9/04 , B22F2009/042 , B22F2998/10 , H01H1/0237 , B22F9/30
摘要： The present invention relates to a method for manufacture of silver-based composite powders for electrical contact materials. The invention relates also to electrical contact materials made from such composite powders. The process comprises a high energy dispersing process of wet silver oxide (Ag2O) with additional second oxide components in aqueous suspension. The high energy dispersing process can be conducted by high shear mixing or by high energy milling. Preferably high speed dispersing units working at rotating speeds in the range of 5,000 to 30,000 rpm or high energy mills such as attritor mills are used. The new process is versatile, economical and offers access to a broad spectrum of contact materials. The silver-based composite powders made according to the new process yield contact materials with a highly dispersed microstructures and superior material characteristics.
摘要翻译：本发明涉及一种用于制造用于电接触材料的银基复合粉末的方法。本发明还涉及由这种复合粉末制成的电接触材料。该方法包括在水性悬浮液中具有另外的第二氧化物组分的湿氧化银（Ag 2 O）的高能分散方法。高能量分散过程可以通过高剪切混合或高能量研磨进行。优选使用以5,000至30,000rpm的转速工作的高速分散单元或高能量磨机如磨碎机。新工艺具有通用性和经济性，并可提供广泛的接触材料。根据新工艺制备的银基复合粉末产生具有高度分散的微结构和优异的材料特性的接触材料。

9. 发明申请

US20060090599A1 Polyol-based method for producing ultra-fine silver powders 审中-公开
标题翻译：用于生产超细银粉的多元醇方法
公开(公告)号：US20060090599A1
公开(公告)日：2006-05-04
申请号：US10981110
申请日：2004-11-03
申请人： Dan Goia , Daniel Andreescu , Brendan Farrell
发明人： Dan Goia , Daniel Andreescu , Brendan Farrell
IPC分类号： B22F9/24
CPC分类号： C23C26/00 , B22F1/0011 , B22F9/24 , B82Y30/00 , Y10T428/12014
摘要： The present invention provides a metallic composition, which contains a plurality of ultra-fine metallic particles (e.g., ultra-fine copper, nickel, or silver particles) having at least one desirable feature, such as, tight size distribution, low degree of agglomeration, and high degree of crystallinity and oxidation resistance. The present invention further provides a method for forming the ultra-fine metallic particles. Also provided are a substance or substrate coated with the ultra-fine metallic particles and a method of coating a substance or substrate with the ultra-fine metallic particles. Furthermore, the present invention provides a method of controlling the size of ultra-fine metal particles formed in a reducing reaction in a liquid. Also provided is a method for producing ultra-fine metallic particles, which utilizes a concentrated reaction system.
摘要翻译：本发明提供一种金属组合物，其含有多个具有至少一个所需特征的超细金属颗粒（例如，超细铜，镍或银颗粒），例如紧密的尺寸分布，低附聚度，并具有高度的结晶度和抗氧化性。本发明还提供了一种形成超细金属颗粒的方法。还提供了涂覆有超细金属颗粒的物质或基材以及用超细金属颗粒涂覆物质或基材的方法。此外，本发明提供一种控制在液体中还原反应中形成的超细金属颗粒的尺寸的方法。还提供了利用浓缩反应体系制造超细金属颗粒的方法。

10. 发明授权

US06409794B1 Method for producing composite powders based on silver-tin oxide, the composite powders so produced, and the use of such powders to produce electrical contact materials by powder metallurgy techniques 有权
公开(公告)号：US06409794B1
公开(公告)日：2002-06-25
申请号：US09825363
申请日：2001-04-04
申请人： Roger Wolmer , Mechthild Mueller , Frank Heringhaus , Dietrich Ruehlicke , Dan Goia
发明人： Roger Wolmer , Mechthild Mueller , Frank Heringhaus , Dietrich Ruehlicke , Dan Goia
IPC分类号： B22F312
摘要： A method for producing composite powders based on silver-tin oxide, by chemically reductive precipitation of silver onto particulate tin oxide. A solution of a silver compound and a solution of a reducing agent are simultaneously added in stoichiometrically equivalent amounts, separately and continuously with intensive mixing, to an aqueous suspension of tin oxide. The resulting composite powders have very high homogeneity, and can be processed to make electrical contact materials. The method is particularly suitable for producing composite powders based on silver-tin oxide doped with indium oxide, to be used in the manufacture of electrical contact materials.

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