Antimicrobial composites, films, labelstocks and labels

Details Antimicrobial composites, films, labelstocks and labels Antimicrobial composites, films, labelstocks and labels

A - Human Necessities

01

N

A01N 59/00 (2006.01) A01N 25/10 (2006.01) A01P 1/00 (2006.01) C08K 3/18 (2006.01) C08L 73/00 (2006.01) C08G 67/02 (2006.01)

Patent

CA 2543496

This invention relates to antimicrobial composites, films, labelstocks and labels. The antimicrobial composites comprise a mixture of (A) a terpolymer prepared from a mixture comprising (i) an olefin, (ii) at least one copolymerizable comonomer comprising ethylenically unsaturated organic acids or esters, vinyl esters of saturated carboxylic acids and mixtures of two or more thereof, and (iii) carbon monoxide, and (B) an antimicrobial composition which comprises at least one metal chlorite and at least one hydrophilic material capable of reacting with the metal chlorite when exposed to water. The composites which are described herein are useful in preparing films, labelstocks and labels which exhibit the desirable antimicrobial properties by providing a controlled release of chlorine dioxide gas over an extended period of time.

L'invention concerne des composites, films, étiquettes autocollantes et étiquettes antimicrobiens. Ces composites antimicrobiens se composent d'un mélange de: (A) un terpolymère préparé à partir d'un mélange comprenant (i) une oléfine, (ii) au moins un comonomère copolymérisable comprenant des esters vinyliques d'acides carboxyliques saturés, des esters ou acides organiques insaturés en éthylène, et des mélanges d'au moins deux de ceux-ci, et (iii) du monoxyde de carbone; et (B) une composition antimicrobienne qui comprend au moins un chlorite métal et au moins une matière hydrophile pouvant réagir avec le chlorite métal lorsqu'elle est exposée à l'eau. Ces composites sont utiles dans la préparation de films, autocollants et étiquettes possédant les propriétés antimicrobiennes recherchées grâce à la libération contrôlée de dioxyde de chlore gazeux sur une période prolongée.

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