发明名称 |
Device for laying a film emerging from a slot die onto a rotating take-off roll |
摘要 |
A device for laying a molten film 3 emerging from a slot die 2 onto a rotating take-off chill roll 1 has at least one electrode which is arranged parallel to and at a short distance from the surface of the take-off roll 1 and to which a high voltage in the range from 4 to 12 kV is applied. This electrode is, for example, a metal strip 5 which has a tapering sharp edge 6 that is oriented toward the surface of the take-off roll 1. In addition to this metal strip 5, a second electrode 27 is arranged at a distance from the surface of the take-off roll. This second electrode is a metal strip without a strip edge and has applied to it a voltage of a magnitude that is equal to or different from that of the metal strip 5. As a result, electric fields are formed in addition to the electric field from the one metal strip electrode 5.
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申请公布号 |
US6120278(A) |
申请公布日期 |
2000.09.19 |
申请号 |
US19980179322 |
申请日期 |
1998.10.27 |
申请人 |
MITSUBISHI POLYESTER FILM GMBH |
发明人 |
ZIMMERMANN, UWE;MUELLER, HARALD;WACKER, DETLEF |
分类号 |
B29C47/88;B29L7/00;B65H20/00;B65H23/00;H02N13/00;(IPC1-7):B29C39/42 |
主分类号 |
B29C47/88 |
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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