发明授权
- 专利标题: Ultra-thin pure flexible graphite calendered sheet and method of manufacture
- 专利标题(中): 超薄纯柔性石墨压延片及其制造方法
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申请号: US574807申请日: 1990-08-30
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公开(公告)号: US5149518A公开(公告)日: 1992-09-22
- 发明人: Robert A. Mercuri , George Getz , Ronald A. Greinke , Ronald A. Howard
- 申请人: Robert A. Mercuri , George Getz , Ronald A. Greinke , Ronald A. Howard
- 申请人地址: CT Danbury
- 专利权人: Ucar Carbon Technology Corporation
- 当前专利权人: Ucar Carbon Technology Corporation
- 当前专利权人地址: CT Danbury
- 主分类号: C04B35/536
- IPC分类号: C04B35/536
摘要:
A process for forming pinhole free ultra-thin flexible sheet material from natural graphite comprising treating low ash natural graphite particles with an oxidizing agent to intercalate the graphite, introducing the particles after they are dried to less than 2% by weight water into a furnace preheated to at least 2000.degree. F. to cause rapid expansion to a specific volume of at least 800 cc/gm and compressing the expanded graphite to below 8 mils in thickness with a density of less than 1.3 g/cc.
公开/授权文献
- US5806653A Roller assembly for a passenger conveyor step chain 公开/授权日:1998-09-15
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