Plastic container having a carbon-treated internal surface

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 1/40 (2006.01) B29C 41/08 (2006.01) B29C 49/02 (2006.01) B29C 49/24 (2006.01) B32B 27/28 (2006.01) B65D 1/02 (2006.01)

Patent

CA 2499311

A blow molded container having barrier properties and including an upper wall portion having an opening, an intermediate sidewall portion positioned beneath the upper wall portion, and a base portion positioned beneath the intermediate sidewall portion to support the container. The container includes a molded outer layer having an inner surface and an outer surface formed from at least 40% of recycled plastic, and a carbon coating formed on the inner surface of the outer layer and adhered thereto and substantially coextensive with the outer layer, wherein said carbon coating has a thickness of less than about 10 microns. A blow molded multi-layer container is also provided having an upper wall portion, including an opening; an intermediate sidewall portion positioned beneath the upper wall portion; and a base portion positioned beneath the intermediate sidewall portion, the base portion being adapted to dependently or independently support the container. The container includes (i) a molded inner layer formed from a plastic material, the inner layer having a vertical length and a carbon-treated inner surface: and (ii) a molded outer layer formed from recycled plastic that is substantially coextensive with the inner layer.

Un contenant moulé par soufflage avec propriété barrière est constitué d'une paroi supérieure dotée d'une ouverture, d'une paroi latérale intermédiaire placée sous la paroi supérieure, et d'une base positionnée sous la paroi latérale intermédiaire servant à soutenir le contenant. Le contenant comprend également une couche extérieure moulée dont les surfaces interne et externe sont constituée d'au moins 40% de plastique recyclé, et un revêtement de carbone appliqué et collé sur la surface interne de la couche externe et sensiblement co-extensif avec la couche externe, sur laquelle ledit revêtement de carbone forme une épaisseur d'environ 10 microns. Un contenant multi-couches moulé par soufflage est également fourni et doté d'une paroi supérieure comprenant une ouverture, d'une paroi latérale intermédiaire placée sous la paroi supérieure, et d'une base positionnée sous la paroi latérale intermédiaire; la base étant adaptée pour soutenir le contenant de façon solidaire ou indépendante. Le contenant inclut : (i) une couche interne moulée en matière plastique, disposée verticalement et dotée d'une surface interne traitée au carbone et (ii) une couche externe moulée, formée de plastique recyclé sensiblement co-extensif avec la couche interne.

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