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1. 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。

2. 发明申请

US20100167051A1 Process for Manufacture of Silver-Based Particles and Electrical Contact Materials 审中-公开
标题翻译：银基颗粒和电接触材料的制造工艺
公开(公告)号：US20100167051A1
公开(公告)日：2010-07-01
申请号：US12294802
申请日：2007-03-29
申请人： Dan V. Goia , Sebastian Fritzsche , Bernd Kempf , Peter Braumann , Thierry Charles Simon Vandevelde
发明人： Dan V. Goia , Sebastian Fritzsche , Bernd Kempf , Peter Braumann , Thierry Charles Simon Vandevelde
IPC分类号： B32B15/02 , B22F9/18 , C22C5/06 , C01G5/00
CPC分类号： B22F1/0014 , B22F1/0018 , B22F9/24 , B82Y30/00 , C01G5/00 , C01P2004/64 , C01P2006/40 , C09C1/62 , H01H1/021 , H01H1/0233 , H01H1/0237 , H01H1/027 , H01H11/048 , H01R13/03 , Y10T428/2982
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 1000° 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。由于有机分散剂的存在，所得到的（+）氧化物物质是热不稳定的，因此该物质在低于1000℃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。

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