BREATHABLE, EXTENSIBLE FILMS MADE WITH TWO-COMPONENT SINGLE RESINS

A film formed from a two-component single resin including two components, not blended or co-polymerized, but inter-polymerized. The two components may have different densities and/or different melt indexes, with the resulting resin having properties of a blend of the two components but with improved...

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Bibliographische Detailangaben
1. Verfasser:	POTNIS, PRASAD, SHRIKRISHNA
Format:	Patent
Sprache:	eng ; fre ; ger
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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Beschreibung
Zusammenfassung:	A film formed from a two-component single resin including two components, not blended or co-polymerized, but inter-polymerized. The two components may have different densities and/or different melt indexes, with the resulting resin having properties of a blend of the two components but with improved durability and improved cross-directional extension properties compared to a conventional blend. The two components may be linear low density polyethylene and a metallocene-catalyzed polymer, for example. The film may also include calcium carbonate to provide breathability. The film has a more uniform cross-directional gauge profile and can be extended more uniformly. The film has cross-direction extensibility at a low force, for example, between about 25% and about 50% at a force below 500 grams per 3 inches.