发明名称 |
Method of forming plastisol gaskets in container closures fabricated from synthetic plastic resins. |
摘要 |
<p>Gaskets are formed in container closures fabricated from polyolefin resins exhibiting substantially no response to heat activation by radio frequency electrical energy by introducing a vinyl chloride plastisol containing a vinyl chloride polymer resin and a plasticizer having a loss factor in the range of 0.1-12 into the closure. The closure is preheated to 55° to 100°C by conventional means and then the plastisol is fused in the closure by exposure to a field of radio frequency electrical energy.</p> |
申请公布号 |
EP0220908(A2) |
申请公布日期 |
1987.05.06 |
申请号 |
EP19860308124 |
申请日期 |
1986.10.20 |
申请人 |
CONTINENTAL WHITE CAP, INC. |
发明人 |
KEHE, ALFRED W.;FETTERS, THOMAS T. |
分类号 |
B29C45/00;B29C33/02;B29C35/12;B29C70/80;B29D99/00;B29L31/26;(IPC1-7):B29C67/18;B29C41/20 |
主分类号 |
B29C45/00 |
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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