发明名称 |
Process for encapsulation of cellulose based substrate using non-electromagnetic heating |
摘要 |
A method for encapsulating a cellulose based substrate with polymeric films involves heating the respective films using a non-electrogmagnetic radiation heating source and providing a pressure differential between an environment defined between the films and an environment external to the films so that conformance of the film to the cellulose based substrate is promoted. The cellulose based substrate is entirely encapsulated by the films and the films are sealed around the peripheral edges of the container as well as edges that are defined adjacent slots and cutouts.
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申请公布号 |
US7247216(B2) |
申请公布日期 |
2007.07.24 |
申请号 |
US20040880018 |
申请日期 |
2004.06.29 |
申请人 |
WEYERHAEUSER CO. |
发明人 |
MUISE, JR., LEGAL REPRESENTATIVE H. DONALD;HORSFIELD BRIAN C.;WILHITE GERALD |
分类号 |
B29C65/00;B29C65/02;B29C65/14;B32B37/00;B32B37/22 |
主分类号 |
B29C65/00 |
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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