发明名称 |
THERMAL LID SEALING METHOD AND APPARATUS |
摘要 |
A method and apparatus are disclosed for heat sealing two thermoplastic parts by clamping the parts together with a cooled clamp so that the edges of the parts are exposed and melting the edges together by contacting them with a hot seal head, preferably including a polymer dam, and preferably involving a layer of a protective material interposed between the hot seal head and the parts to be sealed. |
申请公布号 |
EP0483918(A3) |
申请公布日期 |
1993.04.14 |
申请号 |
EP19910202770 |
申请日期 |
1991.10.24 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
THOMAS, JOHN SHERIDAN, JR. |
分类号 |
B29C65/18;B65B7/28 |
主分类号 |
B29C65/18 |
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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