发明名称 |
Composite chromatographic article |
摘要 |
A composite chromatographic article comprising: (a) a polytetrafluoroethylene fibril matrix, and (b) non-swellable sorptive particles enmeshed in said matrix, the ratio of non-swellable sorptive particles to polytetrafluoroethylene being in the range of 19:1 to 4:1 by weight, said composite article having a net surface energy in the range of 20 to 300 milliNewtons per meter.
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申请公布号 |
US4906378(A) |
申请公布日期 |
1990.03.06 |
申请号 |
US19880274767 |
申请日期 |
1988.11.22 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
HAGEN, DONALD F.;ST. MARY, STEVEN J.;ERREDE, LOUISE A. |
分类号 |
B01J20/28 |
主分类号 |
B01J20/28 |
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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