US4867897A
Expired / Lapsed
US
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Germicidal iodophor composition
Assignee: MDT Corp
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Filing: 1987-08-03
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Granted: 1989-09-19
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Expires: 2007-08-03
Abstract
Abstract A germicidal composition capable of action as an antiseptic or as a disinfectant contains a solvent, iodine and an anionic surfactant, such as nonylphenoxy(ethyleneoxy)4 ethanol sulfate. An admixture with sodium lauryl sulfate is preferred. Said composition, when diluted with water, has a free iodine content greater than that of the iodophors. Methods of making and using the composition are also disclosed.
Inventors
- 👤 Robert A. Kolstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:14
CPC Classifications
A; A61; A61K; A61K33/00; A61K33/18; A01; A01N; A01N59/00; A01N59/12
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
85 words
A germicidal composition having a dilution of use consisting essentially of: a liquid solvent for iodine; iodine in admixture with said liquid solvent; and an anionic surfactant in admixture with said liquid solvent and said iodine, said anionic surfactant comprising nonylphenoxypolyethyleneoxy ethanol sulfate, said iodine and said anionic surfactant being present in such concentrations that when said germicidal composition is diluted with water to its dilution of use, free iodine is present in said diluted composition at a concentration greater than that of an iodophor.
Claim 2
Dependent Claim
85 words
A germicidal composition having a dilution of use consisting essentially of: a liquid solvent for iodine; iodine in admixture with said liquid solvent; and an anionic surfactant in admixture with said liquid solvent and said iodine, said anionic surfactant comprising nonylphenoxypolyethyleneoxy ethanol sulfate, said iodine and said anionic surfactant being present in such concentrations that when said germicidal composition is diluted with water to its dilution of use, free iodine is present in said diluted composition at a concentration greater than that of an iodophor.
Claim 3
Dependent Claim
15 words
The germicidal composition of claim 1 wherein said liquid solvent for iodine comprises isopropyl alcohol.
Claim 4
Dependent Claim
10 words
The germicidal composition of claim 1 including sodium lauryl sulfate.
Claim 5
Dependent Claim
15 words
The germicidal composition of claim 3 wherein said anionic surfactant comprises nonylphenoxy(ethyleneoxy) 4 ethanol sulfate.
Claim 6
Dependent Claim
32 words
The germicidal composition of claim 4 including an acidifying agent present in an amount effective to adjust the pH of said composition to within the range of about 3 to about 6.
Claim 7
Dependent Claim
13 words
The germicidal composition of claim 5 wherein said acidifying agent is phosphoric acid.
Claim 8
Dependent Claim
10 words
The germicidal composition of claim 1 including sodium dodecyl sulfate.
Claim 9
Dependent Claim
10 words
The germicidal composition of claim 6 including a nonionic surfactant.
Claim 10
Dependent Claim
15 words
The germicidal composition of claim 1 wherein said anionic surfactant is nonylphenoxy(ethyleneoxy) 2 ethanol sulfate.
Claim 11
Dependent Claim
15 words
The germicidal composition of claim 1 wherein said anionic surfactant is nonylphenoxy(ethyleneoxy) 6 ethanol sulfate.
Claim 12
Dependent Claim
15 words
The germicidal composition of claim 1 wherein said anionic surfactant is nonylphenoxy(ethyleneoxy) 8 ethanol sulfate.
Claim 13
Dependent Claim
14 words
The germicidal composition of claim 1 wherein said liquid solvent for iodine comprises ethanol.
Claim 14
Dependent Claim
32 words
The germicidal composition of claim 5 including an acidifying agent present in an amount effective to adjust the pH of said composition to within the range of about 3 to about 6.
Claim 15
Dependent Claim
13 words
The germicidal composition of claim 13 wherein said acidifying agent is phosphoric acid.
Claim 16
Dependent Claim
74 words
A germicidal composition having a dilution of use comprising isopropanol, iodine in admixture with said isopropanol, and nonylphenoxy(ethyleneoxy) 4 ethanol sulfate in admixture with said isopropanol and said iodine, said iodine and said nonylphenoxyl(ethyleneoxy) 4 ethanol sulfate being present in such quantities than when said germicidal composition is diluted with water to a dilution of use, free iodine is present in said diluted solution at a concentration of at least 40 milligrams per liter.
Claim 17
Dependent Claim
74 words
A germicidal composition having a dilution of use comprising isopropanol, iodine in admixture with said isopropanol, and nonylphenoxy(ethyleneoxy) 4 ethanol sulfate in admixture with said isopropanol and said iodine, said iodine and said nonylphenoxyl(ethyleneoxy) 4 ethanol sulfate being present in such quantities than when said germicidal composition is diluted with water to a dilution of use, free iodine is present in said diluted solution at a concentration of at least 40 milligrams per liter.
Claim 18
Dependent Claim
10 words
The germicidal composition of claim 15 including an acidifying agent.
Claim 19
Dependent Claim
12 words
The composition of claim 16 wherein said acidifying agent is phosphoric acid.
Claim 20
Dependent Claim
9 words
The composition of claim 17 including sodium lauryl sulfate.
Claim 21
Dependent Claim
63 words
In iodine releasing germicidal compositions of the type having iodine, an anionic surfactant, and water, the improvement comprising selecting said anionic surfactant from the group consisting essentially of nonylphenoxypolyethyleneoxy ethanol sulfate and mixtures of an anionic detergent consisting essentially nonylphenoxypolyethyleneoxy ethanol sulfate and a nonionic detergent so that free iodine is present in the composition at a concentration of 40 milligrams per liter.
Claim 22
Dependent Claim
63 words
In iodine releasing germicidal compositions of the type having iodine, an anionic surfactant, and water, the improvement comprising selecting said anionic surfactant from the group consisting essentially of nonylphenoxypolyethyleneoxy ethanol sulfate and mixtures of an anionic detergent consisting essentially nonylphenoxypolyethyleneoxy ethanol sulfate and a nonionic detergent so that free iodine is present in the composition at a concentration of 40 milligrams per liter.
Claim 23
Independent Claim
65 words
A method of disinfecting a surface comprising applying to said surface a germicidal composition comprising a liquid solvent for iodine, and anionic surfactant comprising nonylphenoxypolyethyleneoxy ethanol sulfate, free iodine and water, wherein said free iodine is present at a concentration of at least 40 milligrams per liter, and maintaining said germicidal composition in contact with said surface for a duration sufficient to disinfect said surface.
Claim 24
Independent Claim
65 words
A method of disinfecting a surface comprising applying to said surface a germicidal composition comprising a liquid solvent for iodine, and anionic surfactant comprising nonylphenoxypolyethyleneoxy ethanol sulfate, free iodine and water, wherein said free iodine is present at a concentration of at least 40 milligrams per liter, and maintaining said germicidal composition in contact with said surface for a duration sufficient to disinfect said surface.
Claim 25
Independent Claim
74 words
A method of making a germicidal composition comprising: dissolving iodine into a first solvent in a first container; dissolving an anionic detergent comprising nonylphenoxypolyethyleneoxy ethanol sulfate into a second solvent in a second container; dissolving a water soluble iodide into said second solvent in said second container, combining, in darkness, the contents of the first container with the contents of the second container, and diluting the combined solution with a predetermined quantity of water.
Claim 26
Independent Claim
74 words
A method of making a germicidal composition comprising: dissolving iodine into a first solvent in a first container; dissolving an anionic detergent comprising nonylphenoxypolyethyleneoxy ethanol sulfate into a second solvent in a second container; dissolving a water soluble iodide into said second solvent in said second container, combining, in darkness, the contents of the first container with the contents of the second container, and diluting the combined solution with a predetermined quantity of water.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |