BLENDS OF POLYPROPYLENE AND ETHYLENE COPOLYMER AND FILMS MADE FROM THE BLEND

A COMPOSITION OF MATTER COMPRISES A BLEND OF PROPYLENE HOMOPOLYMER OR COPOLYMER, AND ETHYLENE COPOLYMER. ETHYLENE VINYL ACETATE COPOLYMER (EVA), VERY LOW DENSITY POLYETHYLENE (VLDPE), AND ETHYLENE ALPHA OLEFIN COPOLYMER ARE PREFERRED ETHYLENE COPOLYMERS. VLDPE WITH A HIGH MOLECULAR WEIGHT (LOW MELT...

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Bibliographische Detailangaben
Hauptverfasser:	ALLEN C WILLIAMS, JR, MARTIN NELSON, HENRY G SCHIRMER
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Zusammenfassung:	A COMPOSITION OF MATTER COMPRISES A BLEND OF PROPYLENE HOMOPOLYMER OR COPOLYMER, AND ETHYLENE COPOLYMER. ETHYLENE VINYL ACETATE COPOLYMER (EVA), VERY LOW DENSITY POLYETHYLENE (VLDPE), AND ETHYLENE ALPHA OLEFIN COPOLYMER ARE PREFERRED ETHYLENE COPOLYMERS. VLDPE WITH A HIGH MOLECULAR WEIGHT (LOW MELT INDEX), AND WITH A BROAD MOLECULAR WEIGHT DISTRIBUTION (HIGH FLOW RATE RATIO) IS PREFERRED. A MULTILAYER FILM COMPRISES A FIRST LAYER COMPRISING A PROPYLENE HOMOPLYMER OR COPOLYMER, OR BLEND, AND AT LEAST ONE OUTER SEALABLE LAYER. (FIG. 1)