发明名称 |
CORONA TREATMENT OF PERFORATED FILM |
摘要 |
<p>CORONA TREATMENT OF PERFORATED FILM A perforated thermoplastic film with tapered capillaries which has an increased liquid flow rate through the tapered capillaries and a method for making such a film. The method includes subjecting a perforated thermoplastic film having tapered capillaries to a corona discharge treatment sufficient to increase the flow rate of liquid through said perforated film. The film made in accordance with the invention has a much higher liquid transmission rate than the perforated film of the prior art. Furthermore, the film may be treated with a corona discharge continuously as the film is being formed and perforated.</p> |
申请公布号 |
CA1191478(A) |
申请公布日期 |
1985.08.06 |
申请号 |
CA19820403043 |
申请日期 |
1982.05.14 |
申请人 |
ETHYL CORPORATION |
发明人 |
THOMAS, PAUL E.;RALEY, GARLAND E. |
分类号 |
B29C71/04;(IPC1-7):B29C71/04 |
主分类号 |
B29C71/04 |
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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