Biostatic polymer
AssigneeNovapharm Research (Australia) Pty Ltd
InventorSteven Kritzler
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Abstract
Methods and compositions effective for at least a week for prevention of microbial colony growth on a surface, for example an inanimate surface, where the surface is covered with a dry or substantially dry film formed from a composition comprising a polyvinyl alcohol and a quaternary ammonium compound. The film may be formed in situ by coating the surface with a solution or emulsion comprising a polyvinyl alcohol and a quaternary ammonium compound and then causing or allowing it to dry or substantially dry.
Claims26
A method effective for at least a week for prevention of microbial colony growth on an inanimate surface which is a plastic, metal, glass or ceramic surface, comprising the step of covering the surface with a dry film consisting essentially of a biostatic complex formed by a polyvinyl alcohol with a quaternary ammonium compound, wherein the biostatic complex is effective to reduce a population of P. Aeruginosa to less than 1 log within 24 hours, as tested according to the method of ASTM E2180-01, and to maintain the population at less than 1 log for at least 7 days, as tested according to the method of ASTM E2180-01.
A composition for prevention of microbial colony growth on an inanimate surface which is a plastic, metal, glass or ceramic surface, comprising a dry film consisting essentially of a biostatic complex formed by a polyvinyl alcohol with a quaternary ammonium compound, wherein the biostatic complex is effective to reduce a population of P. Aeruginosa to less than 1 log within 24 hours, as tested according to the method of ASTM E2180-01, and to maintain the population at less than 1 log for at least 7 days, as tested according to the method of ASTM E2180-01.
Dependencies are inferred from the claim text.