发明名称 |
Process for manufacturing wet-felted and thermally bonded porous structures and porous structures formed by the process |
摘要 |
A process for manufacturing wet-felted and thermally bonded porous structures is provided to produce formed porous media for use in filters with improved filtration performance. The process includes the steps of forming a slurry with a primary media consisting of natural or synthetic fibers, a wet strength agent consisting of fibrillated fibers, and a binding agent; vacuum forming the slurry to produce a formed media; drying the formed media using a gas at a temperature below the melting temperature of the binding agent; bonding the formed media using a gas at a temperature above the melting temperature of the binding agent; and cooling the formed media using a gas at ambient temperature. The process produces a formed porous media with improved bonding which results in improved filtration performance.
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申请公布号 |
US6712939(B2) |
申请公布日期 |
2004.03.30 |
申请号 |
US20010793174 |
申请日期 |
2001.02.26 |
申请人 |
CUNO INCORPORATED |
发明人 |
CHEN WEI-CHIH;FAYE KATHARINE L. K.;SCHIMMEL MARK |
分类号 |
B01D39/00;B01D39/16;B01D39/20;B29C41/16;B29C43/20;B29K105/12;B29L31/14;D04H1/54;D21H21/20;(IPC1-7):D21F11/00;D21F13/00 |
主分类号 |
B01D39/00 |
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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