BOTTLE CAP MADE FROM A MATERIAL COMPRISING POLYPROPYLENE, PARTICULATE CALCIUM CARBONATE AND ADDITIVES

An injection moulded polymeric household bottle cap made of a polypropylene composition comprising: particulate CaCO3; additive; and polypropylene; wherein the polypropylene composition in its solid form and with average wall thickness T has a flexural modulus, measured according to ASTM D790-07, be...

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Bibliographische Detailangaben
Hauptverfasser:	HUESMAN, JOE, DALISAY, HUBERTO, MIEL, MEADOWS, GRANT
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	An injection moulded polymeric household bottle cap made of a polypropylene composition comprising: particulate CaCO3; additive; and polypropylene; wherein the polypropylene composition in its solid form and with average wall thickness T has a flexural modulus, measured according to ASTM D790-07, being at least 95% of the flexural modulus measured on a reference polypropylene composition being substantially free of CaCO3 and having average wall thickness of at least T+10%. L'invention concerne une capsule de bouteille à usage domestique, en polymère moulé par injection, fait d'une composition de polypropylène comportant du CaCO3 particulaire, de l'additif et du polypropylène. La composition de polypropylène dans sa forme solide et avec une épaisseur de paroi moyenne T a un module de flexion, mesuré selon ASTM D790-07, qui est d'au moins 95 % du module de flexion mesuré sur une composition de polypropylène de référence sensiblement exempte de CaCO3 et dont l'épaisseur moyenne de paroi est d'au moins T + 10 %.