Anti-bacterial/anti-viral coatings, coating process and...

A - Human Necessities – 01 – N

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Details

A01N 25/34 (2006.01) A01N 25/24 (2006.01) A01N 39/02 (2006.01) A01N 59/12 (2006.01) A61K 31/085 (2006.01) A61K 47/32 (2006.01)

Patent

CA 2301019

The invention relates to a method of imparting anti-pathogenic properties to a substrate material comprising: (a) preparing a coating composition containing an anti-pathogenic agent consisting essentially of PVP-I and N-9 in a ratio of from about 100:0 to about 0:100 of PVP-I to N-9, the coating composition further containing a pre-mix solution with which the anti-pathogenic agent is intimately mixed in a ratio of from about 6:4 to about 8:2 of agent to pre-mix on a dry basis, and having a percent solids content of from about 5 % to about 35 % solids; (b) feeding the anti-pathogenic coating composition into a coating machine; (c) loading substrate onto the coating machine; (d) operating the coating machine such that the coating composition comes into intimate contact with at least one surface of the substrate; and (e) drying the coated substrate material. The invention further relates to the preparation of coating composition and to the composition itself.

L'invention concerne un procédé destiné à conférer des propriétés antipathogènes à une matière de substrat et consistant: (a) à préparer une composition de revêtement contenant un agent antipathogène composé essentiellement de PVP-I et de N-9 en un rapport compris entre environ 100:0 et environ 0:100 de PVP-I par rapport au N-9, composition de revêtement contenant également une solution prémélangée à laquelle l'agent antipathogène est mélangé intimement en un rapport compris entre environ 6:4 et environ 8:2 d'agent par rapport au prémélange sur une base sèche, et renfermant une teneur en solides exprimée en pourcentage compris entre environ 5 % et environ 35 % de solides; (b) à alimenter une machine de revêtement avec la composition de revêtement antipathogène; (c) à charger le substrat sur la machine de revêtement; (d) à faire fonctionner ladite machine de revêtement de manière que la composition de revêtement vienne en contact intime avec au moins une surface de substrat; et (e) à sécher la matière du substrat revêtu. L'invention concerne également la préparation de la composition de revêtement ainsi que la composition proprement dite.

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