发明授权
- 专利标题： Strengthened cordierite having minor amounts of calcia
- 专利标题（中）： 加强少量钙化堇青石
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申请号： US42996申请日： 1987-04-27
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公开(公告)号： US4745092A公开(公告)日： 1988-05-17
- 发明人: Arthur R. Prunier, Jr.
- 申请人： Arthur R. Prunier, Jr.
- 申请人地址： MI Midland
- 专利权人： The Dow Chemical Company
- 当前专利权人： The Dow Chemical Company
- 当前专利权人地址： MI Midland
- 主分类号： C04B35/195
- IPC分类号： C04B35/195 ; C04B35/04
摘要：
Synthetic raw materials are used to prepare a sintered refractory body consisting essentially of doped cordierite having from about 47.5 to about 56 weight percent SiO.sub.2, from about 31 to about 40 weight percent Al.sub.2 O.sub.3, from about 12 to about 19 weight percent MgO, from about 0.15 to about 1 weight percent CaO, from zero to 250 ppm Na.sub.2 O, and from zero to about 150 ppm K.sub.2 O, the body having a flexural strength of at least about 20,000 psi (about 140 MPa).
公开/授权文献
- US5880344A Soybean cultivator 942336625656 公开/授权日：1999-03-09
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