Antimicrobial textiles comprising peroxide
AssigneeQuick-Med Technologies, Inc.
InventorsWilliam Toreki, Albina Mikhaylova, Susan Leander, Bernd Liesenfeld, Gerald M. Olderman
Life of this patent
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Abstract
This invention pertains to method for imparting a durable antimicrobial activity to substrates, particularly textiles. An acetate-free metal and peroxide antimicrobial treatment formulation is prepared from a metal derivative, hydrogen peroxide and a source of hydroxide ion. The substrate is treated with the composition and dried to afford the treated substrate with antimicrobial activity. Zinc salts, ions, or complexes are preferred.
Claims31
A process of preparing an antimicrobial article comprising the steps of
- (a) providing an aqueous mixture consisting essentially of (1) hydrogen peroxide and (2) one or more chloride, bromide, nitrate, or sulfate salts of magnesium, zinc, or zirconium,
- (b) adding a source of hydroxide ion to the aqueous mixture to produce an antimicrobial treatment formulation having a degree of neutralization of about 50 to 100%,
- (c) applying said antimicrobial treatment formulation of step (b) to an article, and then
- (d) drying the article,
- wherein the molar ratio of hydrogen peroxide to said one or more chloride, bromide, nitrate, or sulfate salts of magnesium, zinc, or zirconium in the aqueous mixture is equal to or greater than 1:1, wherein an acetate-free complex of magnesium, zinc, or zirconium derivatives comprising a mixture of a hydroxide and an peroxide is incorporated into said article, and whereby durable antimicrobial activity is imparted to said article.
A process for preparing an antimicrobial article comprising the steps of
- (a) providing an aqueous binder composition as produced by homogenizing an aqueous mixture of a source of hydroxide ion and one or more chloride, bromide, nitrate, or sulfate salts of magnesium, zinc, or zirconium,
- (b) adding sufficient aqueous hydrogen peroxide to the homonogenized aqueous mixture of step (a) to produce a treatment formulation wherein the molar ratio of hydrogen peroxide to said one or more chloride, bromide, nitrate, or sulfate salts of magnesium, zinc, or zirconium is equal to or greater than 1:1, then
- (c) applying said treatment formulation of step (b) to an article, and
- (d) drying the article which has been treated with said antimicrobial treatment formulation,
- wherein an acetate-free complex of magnesium, zinc, or zirconium derivatives comprising a mixture of a hydroxide and a peroxide is incorporated into said article, and whereby durable antimicrobial activity is imparted to said article.
A process for preparing an antimicrobial article comprising the steps of
- (a) providing an aqueous binder composition as produced by homogenizing an aqueous mixture of a source of hydroxide ion and one or more chloride, bromide, nitrate, or sulfate salts of magnesium, zinc, or zirconium,
- (b) applying the homogenized aqueous mixture of step (a) to an article, then
- (c) exposing said article to aqueous hydrogen peroxide, and
- (d) drying said article which has been treated with said binder composition and aqueous hydrogen peroxide,
- wherein an acetate-free complex of magnesium, zinc, or zirconium derivatives comprising a mixture of a hydroxide and a peroxide is incorporated into said article, and whereby durable antimicrobial activity is imparted to said article.
Dependencies are inferred from the claim text.