| 发明名称 |
Method and apparatus for flow control |
| 摘要 |
Sizing materials are applied to porous substrates to retain fluids in the substrate for a discrete period of time. After that time period, the fluid is substantially completely released from the porous substrate. Sizing materials include alkyl ketene dimers, fluorocarbon resins, and fatty acid chlorides.
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| 申请公布号 |
US5447689(A) |
申请公布日期 |
1995.09.05 |
| 申请号 |
US19940203565 |
申请日期 |
1994.03.01 |
| 申请人 |
ACTIMED LABORATORIES, INC. |
发明人 |
GIBBONI, DAVID J.;MCGEEHAN, SUSAN M.;LAW, WAI T. |
| 分类号 |
G01N31/22;G01N33/487;G01N33/52;G01N33/543;(IPC1-7):G01N30/50 |
主分类号 |
G01N31/22 |
| 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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