Disposable containers coated with a latex coating

Details Disposable containers coated with a latex coating Disposable containers coated with a latex coating

B - Operations, Transporting

65

D

B65D 1/00 (2006.01) B65D 25/00 (2006.01)

Patent

CA 2549781

A molded thermoplastic container e.g. cup, bowl made from expandable thermoplastic particles e.g. expandable polystyrene, has a latex coating, e.g. latex of methyl methacrylate and styrene copolymer, latex of methyl acrylate and styrene copolymer, latex of acrylic acid and styrene copolymer, and latex of butadiene and styrene copolymer, applied to at least its inner surface via dipping, brushing or spraying processes for improved leakage and/or stain resistance and/or storage longevity. The coating may be applied to the outer surface of the container for leak resistance and printing purposes. A related method for forming the container, an article of manufacture, and an improved method for storing liquid and food substances are also disclosed.

Un récipient thermoplastique moulé, par exemple, une tasse, un bol formé de particules thermoplastiques expansibles, telles que par exemple du polystyrène expansible, comporte un revêtement en latex, par exemple du latex de copolymère de méthacrylate de méthyle et de styrène, du latex de copolymère d'acrylate de méthyle et de styrène, du latex de copolymère d'acide acrylique et de styrène et du latex de copolymère de butadiène et de styrène, appliqué au moins sur sa surface interne par immersion, brossage ou pulvérisation afin d'assurer une meilleure résistance aux fuites et/ou aux taches et/ou une durée de stockage accrue. Le revêtement peut être appliqué sur l'autre surface du récipient pour conférer une résistance aux fuites et permettre l'impression. La présente invention concerne également un procédé correspondant de formation du récipient, un article manufacturé et un procédé amélioré de stockage de substances liquides et alimentaires.

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