发明名称 Method of filling and sealing RF-sealable packaging containers
摘要 Packaging containers which are closed, except for a pinch-type filling valve or filling-opening, are provided with an RF-sealable polymer, at least in the valve or opening, in order to be able to seal the valve or opening using RF frequency. Preferably, polymers which are sealable using MW energy are used, including, preferably, carbon monoxide-containing ethylene polymers.
申请公布号 US4660354(A) 申请公布日期 1987.04.28
申请号 US19850738008 申请日期 1985.05.28
申请人 THE DOW CHEMICAL COMPANY 发明人 LANCASTER, GERALD M.;KELLEY, DAVID C.
分类号 B65D33/16;B29C65/00;B29C65/02;B29C65/04;B29C65/14;B29C65/40;B32B27/04;B65D30/26;C08G67/02;C08J5/12;C09J173/00;(IPC1-7):B65B7/02 主分类号 B65D33/16
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