发明名称 Thermoplastic multi-layer barrier packaging film and bags made therefrom
摘要 Disclosed is a multi-layer heat-shrinkable (oriented) film having a barrier layer of polyvinylidene chloride copolymer and having an outer layer of polyamide. The polyamide layer is directly adhered to the barrier layer. Also disclosed is a method to make the film and barrier bags made therefrom.
申请公布号 US4755402(A) 申请公布日期 1988.07.05
申请号 US19870021113 申请日期 1987.03.03
申请人 W. R. GRACE & CO., CRYOVAC DIV. 发明人 OBERLE, TIMOTHY T.
分类号 B65D30/02;B29C61/06;B32B7/02;B32B27/30;B32B27/34;(IPC1-7):B65D65/02 主分类号 B65D30/02
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