发明公开
- 专利标题： Process for making paste for sealing porous layers
- 专利标题（中）： 用于密封多孔层的方法
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申请号： EP86201929申请日： 1983-09-29
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公开(公告)号： EP0220787A3公开(公告)日： 1987-11-19
- 发明人: Feigenbaum, Haim , Pudick, Sheldon , Singh, Rajindar
- 申请人： ENGELHARD CORPORATION
- 专利权人： ENGELHARD CORPORATION
- 当前专利权人： ENGELHARD CORPORATION
- 优先权： US430142 19820930
- 主分类号： C09K03/10
- IPC分类号： C09K03/10 ; H01M08/02
摘要：
A paste for sealing porous gas distribution plates in fuel cells is prepared by
(a) mixing silicon carbide powder, polyethylene oxide and polytetrafluoroethylene together to form a paste mixture (b) sintering the mixture (c) adding concentrated phosphoric acid,
and (d) mixing said acid with said sintered mixture to form a paste of uniform consistency.
(a) mixing silicon carbide powder, polyethylene oxide and polytetrafluoroethylene together to form a paste mixture (b) sintering the mixture (c) adding concentrated phosphoric acid,
and (d) mixing said acid with said sintered mixture to form a paste of uniform consistency.
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