发明名称 |
Container closure |
摘要 |
A method for producing a foamed plastic product suitable as liner material for container closures, including the steps of extruding a polymer composition foamable at atmospheric pressure into an air space at atmospheric pressure and then into a liquid quenching agent for stopping foaming and for setting, wiping against the quenched composition, and maintaining the residence time of the composition in the air space as a function of bubbling from the composition during the wiping.
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申请公布号 |
US3971489(A) |
申请公布日期 |
1976.07.27 |
申请号 |
US19750562883 |
申请日期 |
1975.03.28 |
申请人 |
ALUMINUM COMPANY OF AMERICA |
发明人 |
WELCH, BING;WHEELER, WILLIAM R. |
分类号 |
C08J9/04;B29B7/00;B29C47/00;B29C47/14;B29C47/88;B29C47/92;B65D41/04;B65D51/16;B65D53/04;B65D53/06;(IPC1-7):B65D51/16 |
主分类号 |
C08J9/04 |
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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