专利名称：Heat sealable packaging film comprising
propylene polymer substrate and a surfacelayer blend of ethylene copolymer andpropylene copolymer
发明人：Milton L. Weiner申请号：US06/202973申请日：19801103公开号：US04340640A公开日：19820720
摘要：Multiple layer, heat sealable films are described comprising a substrate layer ofpolypropylene homopolymers or copolymers, or blends thereof with compatiblepolyolefins, and at least one heat sealable surface layer of a blend of a copolymer ofethylene and a higher olefin, and a copolymer of propylene and a higher olefin. The filmsare prepared by extrusion 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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