| 发明名称 |
FILTER MEDIUM AND METHOD OF MAKING SAME |
| 摘要 |
<p>A filter medium having a water-laid web of fibers, at least 70% of which are cellulose, impregnated with resin in a pattern at its wire side to a depth of 15 to 45% of its total thickness, the pattern having zones free from resin amounting to 35 to 60% of the total area of the wire side, each zone having at least one dimension no greater than 4 mm.</p> |
| 申请公布号 |
CA1073372(A) |
申请公布日期 |
1980.03.11 |
| 申请号 |
CA19770279554 |
申请日期 |
1977.05.31 |
| 申请人 |
HOLLINGSWORTH & VOSE COMPANY |
发明人 |
LAWSON, GROVER C.;WILSON, JAMES C. |
| 分类号 |
B01D39/14;B01D39/18;(IPC1-7):01D39/18 |
主分类号 |
B01D39/14 |
| 代理机构 |
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代理人 |
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| 地址 |
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