发明名称 Process for heat sealing a water soluble film in the presence of water
摘要 A process for heat sealing a water soluble film to a water soluble member, wherein an aqueous composition is applied to at least one of the surfaces of said film and said member before said surfaces are heat sealed together.
申请公布号 US2004182049(A1) 申请公布日期 2004.09.23
申请号 US20040483667 申请日期 2004.01.13
申请人 DUFFIELD PAUL JOHN 发明人 DUFFIELD PAUL JOHN
分类号 B29C65/00;(IPC1-7):B65B7/00;B65D85/808;B65D85/00;B65D79/00;B65D65/46 主分类号 B29C65/00
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