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1. 发明授权

US06838021B2 Irregular shaped copper particles and methods of use 失效
标题翻译：不规则形状的铜颗粒和使用方法
公开(公告)号：US06838021B2
公开(公告)日：2005-01-04
申请号：US10013629
申请日：2001-12-10
申请人： Rajesh Khatter , Anil V. Nadkarni , Hsiao L. Cheng
发明人： Rajesh Khatter , Anil V. Nadkarni , Hsiao L. Cheng
IPC分类号： B22F1/00 , C22C1/04 , H01B1/02 , H01B1/22 , H05K1/09 , H05K3/32 , B22F9/08
CPC分类号： H01B1/026 , B22F1/0014 , B22F2009/0828 , B22F2998/10 , C22C1/0425 , H01B1/22 , H05K1/095 , H05K3/321 , B22F9/082 , B22F1/0088
摘要： The present invention provides water atomized copper powder comprising substantially irregular shaped copper particles having at least a median D50 particle size of from about 10 μm to about 50 μm. The powders of the present invention are suitable for use in electrically conductive compositions, such as copper-based adhesives. The present invention also provides methods of making these copper powders.
摘要翻译：本发明提供了包含基本上不规则形状的铜颗粒的水雾化铜粉末，其具有至少中等D50粒度为约10μm至约50μm。本发明的粉末适用于导电组合物，例如铜基粘合剂。本发明还提供了制造这些铜粉的方法。

2. 发明授权

US4439468A Platinum coated silver powder 失效
标题翻译：铂镀银银粉
公开(公告)号：US4439468A
公开(公告)日：1984-03-27
申请号：US412366
申请日：1982-08-25
申请人： Anthony Liang , Hsiao L. Cheng
发明人： Anthony Liang , Hsiao L. Cheng
IPC分类号： C09D5/24 , H01B1/02 , H01L23/482 , B22F1/02 , C23C3/02
CPC分类号： H01L23/4828 , C09D5/24 , H01B1/02 , H01L2924/0002
摘要： A metallic powder having a core of silver and an outer layer of platinum wherein the silver is from about 90 to about 99.5% by weight of the total composition. A process for producing such a powder comprising forming a first aqueous slurry of silver powder, an appropriate amount of lignosulfonate ammonia and water, forming a second slurry of platinum as a platinum-ammonium complex dispersed in a water soluble alkanol, mixing the first and second slurry, adjusting the pH of the mixture to a range of from about 8 to about 10, adding an appropriate amount of hydrazine to the mixture maintaining the resultant slurry at about 40.degree. C. to 60.degree. C. for an appropriate time to coat the platinum onto the silver, then separating the platinum-coated silver powder from the remainder of the slurry.
摘要翻译：一种具有银核和外层铂的金属粉末，其中银的总组合物重量为约90至约99.5％。一种制备这种粉末的方法，包括形成银粉末的第一含水浆液，适量的木质素磺酸铵和水，形成分散在水溶性烷醇中的作为铂 - 铵络合物的铂的第二浆料，将第一和第二浆液，将混合物的pH调节至约8至约10的范围内，向混合物中加入适量的肼，保持所得浆液在约40℃至60℃下适当的时间涂覆铂在银上，然后将铂包覆的银粉与剩余的浆料分离。

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