Solid concentrate iodine composition
AssigneeEcolab Inc.
InventorSandra L. Bull
Life of this patent
Estimating the term…
Abstract
A solid iodine concentrate composition comprising an iodine complex, and a solidifier wherein said iodine complex comprises a complexing agent and an iodine source present in a ratio of at least 1.5:1.
Claims36
A storage stable cast solid iodine concentrate composition consisting essentially of:
- (a) an iodine complex consisting essentially of from about 5 wt-% to 25 wt-% of a nonionic surfactant complexing agent and an iodine source present in a ratio of from about 1.5:1 to about 3:1 complexing agent to iodine wherein the concentration of titratable iodine is about 2 wt-% or greater of the composition;
- (b) from about 30 wt-% to 70 wt-% of urea;
- and
- (c) an effective pH lowering amount of acidulant.
A storage stable cast solid iodine concentrate composition consisting essentially of:
- (a) an iodine complex consisting essentially of an iodine source and a complexing agent, said complexing agent consisting of from about 5 wt-% to 25 wt-% of a nonionic surfactant wherein said complexing agent and said iodine are present in a concentration ratio ranging from about 1.5:1 to about 3:1 complexing agent to iodine wherein the concentration of titratable iodine is about 3 wt-% or greater of the composition;
- (b) from about 40 wt-% to 60 wt-% of urea;
- and
- (c) from about 5 wt-% to 50 wt-% of an acidulant said acidulant selected from the group consisting of phosphoric acid, sodium bisulfate, sulfamic acid, or citric acid.
A storage stable solid iodine concentrate composition consisting essentially of:
- (a) from about 10 wt-% to about 25 wt-% of an iodine complex, said complex consisting essentially of an iodine source and from about 5 wt-% to 25 wt-% complexing agent in a concentration ratio of at least about 1.5:1 to 3:1 complexing agent to iodine, wherein the concentration or titratable iodine is greater than 3 wt-% of the composition, said complexing agent comprising a nonionic surfactant selected from the group consisting of a polyoxypropylene-polyoxyethylene block copolymer, an alkyl alcohol alkoxylate, or mixtures thereof, and said iodine source comprises iodine;
- (b) from about 40 wt-% to about 60 wt-% of urea;
- and
- (c) from about 30 wt-% to about 40 wt-% of an acidulant said acidulant comprising a compound selected from the group consisting of phosphoric acid, sodium bisulfate, sulfamic acid, citric acid, or combinations thereof.
A method of using a storage stable cast solid iodine concentrate composition consisting essentially of a complexing composition, wherein said iodine complex consists essentially of an iodine source and from about 5 wt-% to 25 wt-% of a nonionic surfactant complexing agent, from about 30 wt-% to 70 wt-% of a urea solidifier, and an effective pH lowering amount of an acidulant, said method comprising the step of dissolving said concentrate composition to form an antimicrobial solution and applying said solution to the desired surface.
Dependencies are inferred from the claim text.