发明名称 |
INNER MANDREL |
摘要 |
The object of the present invention is to provide an internal mandrel for cooling a tubular thin film where air layer is not remaining in the lower side cooler of the internal mandrel, so that the tubular thin film can be continuously and stably produced. In the internal mandrel for directly cooling the tubular thin film while using external circularly shaped cooling tank where the tubular thin film is downwardly extruded through a circular slit of the die, the internal mandrel is characterized in that coolant for cooling a lower most part of the internal mandrel is flown in such a direction as to oppose to the tubular thin film. <IMAGE> |
申请公布号 |
EP1475215(B1) |
申请公布日期 |
2016.04.13 |
申请号 |
EP20030701130 |
申请日期 |
2003.01.21 |
申请人 |
KOHJIN FILM & CHEMICALS CO., LTD. |
发明人 |
WATANABE, KOJI;MURAKAMI, SHINJI;KOJOH, HISASHI |
分类号 |
B29C47/88;B29C35/16;B29C47/86;B29C47/92 |
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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