US4444756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iodine containing disinfectants
Assignee: Ecolab USA Inc
•
Filing: 1982-05-03
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Granted: 1984-04-24
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Expires: 2002-05-03
Abstract
Abstract Aqueous disinfectant concentrates and solutions containing iodine, potassium or sodium iodide, and orthophosphoric acid in controlled quantities, including, optionally, a phosphonic acid with complexing properties. Also, a method of disinfecting a surface comprising applying to such surface a solution of the invention.
Inventors
- 👤 Hans-Joachim Schlussler
- 👤 Ferdinand Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:21
CPC Classifications
A; A01; A01N; A01N59/00; A01N59/12; A01N59/26; A61; A61P; A61P17/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
86 words
An aqueous concentrate, useful in the preparation of disinfecting solutions, consisting essentially of (a) from about 0.1 to about 3% by weight of I 2 ; (b) from about 0.2 to about 6% by weight of either (i) potassium iodide, (ii) sodium iodide, or (iii) a mixture of potassium iodide and sodium iodide; (c) from about 1 to about 15% by weight of phosphoric acid; and (d) from about 0.1 to about 3% by weight of a phosphonic acid having the ability to complex calcium ions.
Claim 2
Dependent Claim
86 words
An aqueous concentrate, useful in the preparation of disinfecting solutions, consisting essentially of (a) from about 0.1 to about 3% by weight of I 2 ; (b) from about 0.2 to about 6% by weight of either (i) potassium iodide, (ii) sodium iodide, or (iii) a mixture of potassium iodide and sodium iodide; (c) from about 1 to about 15% by weight of phosphoric acid; and (d) from about 0.1 to about 3% by weight of a phosphonic acid having the ability to complex calcium ions.
Claim 3
Dependent Claim
23 words
A concentrate in accordance with claim 1 wherein the range of iodide in (b) is from about 2 to about 4% by weight.
Claim 4
Dependent Claim
24 words
A concentrate in accordance with claim 1 wherein the range of I 2 in (a) is from about 1 to about 2% by weight.
Claim 5
Dependent Claim
34 words
A concentrate in accordance with claim 1, 2, or 3 wherein in (d) from about 1 to about 2% by weight of a phosphonic acid having the ability to complex calcium ions is present.
Claim 6
Dependent Claim
92 words
An aqueous disinfectant solution comprising from about 0.1 to about 10% by weight of a concentrate consisting essentially of: (a) from about 0.1 to about 3% by weight of I 2 ; (b) from about 0.2 to about 6% by weight of either (i) potassium iodide, (ii) sodium iodide, or (iii) a mixture of potassium iodide and sodium iodide; (c) from about 1 to about 15% by weight of phosphoric acid; and (d) from about 0.1 to about 3% by weight of a phosphonic acid having the ability to complex calcium ions.
Claim 7
Dependent Claim
92 words
An aqueous disinfectant solution comprising from about 0.1 to about 10% by weight of a concentrate consisting essentially of: (a) from about 0.1 to about 3% by weight of I 2 ; (b) from about 0.2 to about 6% by weight of either (i) potassium iodide, (ii) sodium iodide, or (iii) a mixture of potassium iodide and sodium iodide; (c) from about 1 to about 15% by weight of phosphoric acid; and (d) from about 0.1 to about 3% by weight of a phosphonic acid having the ability to complex calcium ions.
Claim 8
Dependent Claim
25 words
A solution in accordance with claim 5 in which from about 0.5 to about 2% by weight of said concentrate is present in the solution.
Claim 9
Dependent Claim
26 words
A solution in accordance with claim 5 wherein the range of iodide in (b) in the concentrate is from about 2 to about 4% by weight.
Claim 10
Dependent Claim
27 words
A solution in accordance with claim 5 wherein the range of I 2 in (a) in the concentrate is from about 1 to about 2% by weight.
Claim 11
Dependent Claim
35 words
A solution in accordance with claim 5, 6, 7, or 8 wherein in (d) from about 1 to about 2% by weight of a phosphonic acid having the ability to complex calcium ions is present.
Claim 12
Dependent Claim
103 words
A process for disinfecting a surface comprising contacting said surface with an aqueous disinfectant solution containing from about 0.1 to about 10% by weight of a concentrate consisting essentially of: (a) from about 0.1 to about 3% by weight of I 2 ; (b) from about 0.2 to about 6% by weight of either (i) potassium iodide, (ii) sodium iodide, or (iii) a mixture of potassium iodide and sodium iodide; (c) from about 1 to about 15% by weight of phosphoric acid; and (d) from about 0.1 to about 3% by weight of a phosphonic acid having the ability to complex calcium ions.
Claim 13
Dependent Claim
103 words
A process for disinfecting a surface comprising contacting said surface with an aqueous disinfectant solution containing from about 0.1 to about 10% by weight of a concentrate consisting essentially of: (a) from about 0.1 to about 3% by weight of I 2 ; (b) from about 0.2 to about 6% by weight of either (i) potassium iodide, (ii) sodium iodide, or (iii) a mixture of potassium iodide and sodium iodide; (c) from about 1 to about 15% by weight of phosphoric acid; and (d) from about 0.1 to about 3% by weight of a phosphonic acid having the ability to complex calcium ions.
Claim 14
Dependent Claim
26 words
A process in accordance with claim 10 in which from about 0.5 to about 2% by weight of said concentrate is present in the disinfectant solution.
Claim 15
Dependent Claim
26 words
A process in accordance with claim 10 wherein the range of iodide in (b) in the concentrate is from about 2 to about 4% by weight.
Claim 16
Dependent Claim
27 words
A process in accordance with claim 10 wherein the range of I 2 in (a) in the concentrate is from about 1 to about 2% by weight.
Claim 17
Dependent Claim
35 words
A process in accordance with claim 10, 11, 12 or 13 wherein in (d) from about 1 to about 2% by weight of a phosphonic acid having the ability to complex calcium ions is present.
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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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |