发明名称 |
Electrostatic pinning of extruded thermoplastic film |
摘要 |
Apparatus and process for the extrusion and quenching of thermoplastics films wherein the film is electrostatically pinned to a cooled quenching surface by means of a blade electrode having a charge-emitting edge which is non-linear and conforms substantially to the transverse curvature in the edge portions of the film.
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申请公布号 |
US4309368(A) |
申请公布日期 |
1982.01.05 |
申请号 |
US19800168416 |
申请日期 |
1980.07.10 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES LIMITED |
发明人 |
GROVES, DAVID J. |
分类号 |
B29B7/00;B29C31/00;B29C41/26;B29C47/00;B29C47/88;B29L7/00;(IPC1-7):B29D7/02;H05B7/06 |
主分类号 |
B29B7/00 |
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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