发明名称 Polmeric films and packages made therefrom
摘要 Heat sealable polymeric films having an outer, polymeric heat seal layer with a viscosity at its heat sealing temperatures such that it will flow into interstitial spaces between the fibers of a fibrous material and encapsulate the fibers at such temperatures, an intermediate polymeric layer in contact with the heat seal layer, the intermediate polymeric layer being capable of cohesively splitting when the heat sealed film is peeled, and at least one further polymeric layer, the heat seal layer being easier to fracture than the intermediate layer at the temperature at which peeling is to be effected so that heat seal layer ruptures rather than peeling continuing through the intermediate layer once peeling has been effected through the heat sealed zone.
申请公布号 GB9727169(D0) 申请公布日期 1998.02.25
申请号 GB19970027169 申请日期 1997.12.24
申请人 REXAM MEDICAL PACKAGING LTD 发明人
分类号 B32B7/06;B65D75/58 主分类号 B32B7/06
代理机构 代理人
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