WHITE, CONFORMABLE FILMS FOR PRESSURE-SENSITIVE-LABELING APPLICATIONS

A squeezable, white polypropylene film is disclosed having a novel balance of conformability, stiffness, modulus, opacity, and whiteness. The film includes an ABCBA structure having a core layer of polypropylene resin with an elastomeric copolymer and a cavitating agent. Two intermediate layers of p...

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Bibliographische Detailangaben
Hauptverfasser:	AMBROISE, Benoit, HINMAN, Daniel, L, CLECKNER, Michael, D, SHEPPARD, Robert, M
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES 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 OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A squeezable, white polypropylene film is disclosed having a novel balance of conformability, stiffness, modulus, opacity, and whiteness. The film includes an ABCBA structure having a core layer of polypropylene resin with an elastomeric copolymer and a cavitating agent. Two intermediate layers of polypropylene resin are present on either side, the intermediate layers optionally including an elastomeric copolymer and a pigmenting agent. Two polymer skin layers surround the two intermediate layers. The resins are co-extruded into a biaxially oriented film having a thickness between 40 to 70 pm for use in pressure-sensitive labeling applications.