发明名称 |
Quenching of polymeric film |
摘要 |
In the electrostatic pinning of molten polymeric film, especially polyethylene terephthalate film, to a quenching drum, the insulators for those parts of the pinning electrode positioned outside the edges of the film are adjusted to follow the transverse fluctuations which may occur in the film edges so as to prevent sparking between the electrode and the margins of the quenching drum outside the film edges.
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申请公布号 |
US4071589(A) |
申请公布日期 |
1978.01.31 |
申请号 |
US19760676673 |
申请日期 |
1976.04.14 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES LIMITED |
发明人 |
LATHAM, RAYMOND JOHN;HOLLOWAY, ARTHUR JOHN |
分类号 |
B29C47/88;(IPC1-7):B29D7/22 |
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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