Polypropylene containers

Details Polypropylene containers Polypropylene containers

B - Operations, Transporting

65

D

B65D 1/34 (2006.01) A23C 1/00 (2006.01) B32B 27/32 (2006.01)

Patent

CA 2499588

A container comprises a substrate and a multi-layer film. The substrate has a bottom wall and a continuous base wall in which the continuous base wall encompasses the bottom wall and extends upwardly therefrom. The substrate comprises at least one particulate mineral filler and polypropylene. The multi- layer film is attached to the substrate. The multi-layer film comprises at least a first layer and a second layer. The first layer comprises a metallocene-catalyzed polyolefin. The second layer comprises polypropylene. The substrate and the multi-layer film are made in the absence of ethylene vinyl alcohol copolymer (EVOH), ethylene vinyl acetate copolymer (EVA), and ethylene methyl acrylate copolymer (EMA).

La présente invention concerne un contenant qui comprend un substrat et un film multicouche. Le substrat comporte une paroi inférieure et une paroi de base continue, laquelle paroi de base continue entoure la paroi inférieure et s'étend vers le haut depuis celle-ci. Le substrat renferme au moins une charge minérale particulaire et du polypropylène. Le film multicouche est attaché au substrat. Le film multicouche comprend au moins une première couche et une seconde couche. La première couche comprend une polyoléfine catalysée par un métallocène. La seconde couche comprend du polypropylène. Le substrat et le film multicouche sont réalisés en l'absence de copolymère éthylène vinyle alcool (EVOH), de copolymère éthylène vinyle acétate (EVA) et de copolymère éthylène méthyle acrylate (EMA).

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