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POLYPROPYLENE MODIFICATION FOR IMPROVED ADHESION OF POLYPROPYLENE-BASED MULTILAYER PACKAGING FILM STRUCTURE TO VACUUM DEPOSITED ALUMINUM
POLYPROPYLENE MODIFICATION FOR IMPROVED ADHESION OF POLYPROPYLENE-BASED MULTILAYER PACKAGING FILM STRUCTURE TO VACUUM DEPOSITED ALUMINUM
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机译:聚丙烯改性,可改善聚丙烯基多层包装薄膜结构对真空沉积铝的粘附力
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摘要
There is provided a metallizable alkene or olefin polymer composition. The composition results from the blending of a modifier with an alkene or olefin polymer composition. The modifier is selected from the group consisting of: a maleic anhydride grafted ethylene copolymer, an ethylene copolymer containing acid monomers and/or ester monomers, an acid-grafted propylene copolymer, and a maleic anhydride grafted blend of a propylene copolymer with an ethylene copolymer. The resultant polymeric composition adheres surprisingly well to metal films and particularly well to aluminum film. The resultant composition also has unexpectedly favourable rheology properties making the composition efficient to use in co-extrusion processes. Also provided is a method of preparing the polymer compositions.
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