专利名称：Heat sealable packaging film comprising
propylene polymer substrate and olefinsurface layer blend of polybutene-1 and anethylene or a propylene copolymer
发明人：Milton L. Weiner申请号：US06/202904申请日：19801103公开号：US04339494A公开日：19820713
摘要：Multiple-layer, heat-sealable films are described comprising a substrate layerof polypropylene homopolymer or copolymer, or blends thereof with compatiblepolyolefins; and at least one heat-sealable surface layer of a blend poly(1-butene), and acopolymer of ethylene or propylene and a higher olefin. The films are prepared byextrusion coating or coextrusion and can be oriented.
申请人：MOBIL OIL CORPORATION
代理人：Charles A. Huggett,Edward J. Trojnar,John K. AboKhair
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