发明名称 |
Electret process and products. |
摘要 |
<p>A continuous process for the preparation of an electret and the products produced thereby, including filter fabrics, employs a continuous film or continuous filaments in the form of a tightly packed warp having a warp density as determined by light transmission of not more than 40%. The continuous film or continuous filament in the form of a tightly packed warp is continuously fed one or more times through a corona charging station having electrodes disposed on both sides of the material being treated, the material being treated being simultaneously heated while being subjected to a corona discharge of from 6 KV to 20 KV direct current.</p> |
申请公布号 |
EP0141674(A2) |
申请公布日期 |
1985.05.15 |
申请号 |
EP19840307668 |
申请日期 |
1984.11.07 |
申请人 |
CELANESE CORPORATION |
发明人 |
FELTON, CLINTON DALE;GIBSON, BAYLOR DEE;JAMISON, CHARLES EDWARD;MCWHORTER, WILLIAM O.;SERAD, GEORGE A. |
分类号 |
D06M10/00;B01D39/08;D06M10/02;D06M101/00;D06M101/16;D06M101/30;H01G7/02;(IPC1-7):H01G7/02 |
主分类号 |
D06M10/00 |
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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