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Priority to JP18723285UpriorityCriticalpatent/JPH0234032Y2/ja
Publication of JPS6294834UpublicationCriticalpatent/JPS6294834U/ja
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Publication of JPH0234032Y2publicationCriticalpatent/JPH0234032Y2/ja
Heat sealable packaging film comprising propylene polymer substrate and olefin surface layer blend of polybutene-1 and an ethylene or a propylene copolymer