Antimicrobial coated metal sheet

A - Human Necessities – 01 – N

Patent

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Details

A01N 59/16 (2006.01) A01N 25/34 (2006.01) B05D 7/14 (2006.01) C09D 5/14 (2006.01)

Patent

CA 2446098

The present invention relates to metallic sheets having an improved antimicrobial property and also related to a method of manufacturing such sheets. More particularly, it relates to the continuous coating on metallic sheets with a resin composition containing antimicrobial additives. The surface of the metallic article is afforded antimicrobial properties by coating a liquid dispersion or solution of fine particles made of an antimicrobial ingredient on the surface of the metallic sheet dispersed in a uniform layer and cured or dried to affix to the metallic surface. The inorganic antibacterial particles are metal component-supporting oxides and zeolite powders. The inorganic antibacterial core particles have at least a primary surface coating of at least one metal or metal compound having antimicrobial properties. Roll coasters apply the coating. The metallic article generally includes sheet articles made of metals, for example, metallic sheets made of stainless steel, conventional steel sheets and aluminum sheets or plate.

L'invention concerne des tôles métalliques possédant des propriétés antimicrobiennes améliorées et leur procédé de fabrication. L'invention porte, notamment, sur l'application continue sur des tôles métalliques d'une composition résineuse contenant des additifs antimicrobiens. On confère des propriétés antimicrobiennes à la surface de l'article métallique en appliquant sur la surface de la tôle métallique une dispersion ou une solution liquide de particules fines constituées d'un ingrédient antimicrobien, dispersées en couche homogène et cuites ou séchées, de sorte qu'elles se fixent à la surface métallique. Les particules antimicrobiennes inorganiques sont des oxydes portant des composants métalliques et des poudres de zéolite. Les particules centrales antibactériennes inorganiques présentent au moins un premier revêtement de surface constitué d'au moins un métal ou d'un composé métallique possédant des propriétés antibactériennes. On utilise des applicateurs à rouleau pour appliquer le revêtement. L'article métallique comprend généralement des articles en feuille faits de métaux, par exemple, des tôles métalliques en acier inoxydable, des tôles d'acier classiques ainsi que des plaques ou des tôles en aluminium.

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