发明名称 |
Method for preparing hydrophilic silica gels with high pore volume |
摘要 |
A method for the preparation of hydrophilic silica gels with high pore volume. In the preferred method a hydrophilic silica hydrogel treated with an organosilicon compound to effect hydrophobing of the silica hydrogel is heated in the presence of an oxidizing atmosphere to a temperature sufficient to reduce the hydrophobicity imparted by the surface treatment thereby producing a hydrophilic silica gel having high pore volume.
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申请公布号 |
US6239243(B1) |
申请公布日期 |
2001.05.29 |
申请号 |
US19990329384 |
申请日期 |
1999.06.10 |
申请人 |
DOW CORNING CORPORATION |
发明人 |
DENG QIN;HAHN JAMES RICHARD;SHEPHARD KIERSTEN LYNN |
分类号 |
C01B33/152;C01B33/16;(IPC1-7):C01B33/14;B05D3/02;C08G77/06;C08K9/06 |
主分类号 |
C01B33/152 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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