发明授权
- 专利标题: Free flowing powder and process for producing it
- 专利标题(中): 自由流动的粉末和生产过程
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申请号: US672502申请日: 1976-03-31
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公开(公告)号: US4028095A公开(公告)日: 1977-06-07
- 发明人: John M. Laferty, Jr. , Joseph E. Ritsko , David J. Port
- 申请人: John M. Laferty, Jr. , Joseph E. Ritsko , David J. Port
- 申请人地址: CT Stamford
- 专利权人: GTE Sylvania Incorporated
- 当前专利权人: GTE Sylvania Incorporated
- 当前专利权人地址: CT Stamford
- 主分类号: B22F1/00
- IPC分类号: B22F1/00 ; C23C4/08 ; C22C1/04
摘要:
Free flowing powders, such as for flame spray applications, are produced by spray drying a slurry of finely divided particles of the metal in a solvent-binder system to produce agglomerates, wherein the binder is a soluble compound of the metal. These agglomerates possess sufficient green strength to be screened and exhibit higher apparent densities than comparable powders agglomerated with conventional organic binders. When these powders are heated in a reducing atmosphere above the decomposition temperature of the binder, the binder converts to base metal and harmless by-products, such as nitrogen and water thus avoiding contamination of the product, equipment and work area usually associated with conventional organic binders.
公开/授权文献
- US5635448A Herbicidal composition for upland farming and weeding method 公开/授权日:1997-06-03
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