US6123966A
Expired / Lapsed
US
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Stabilized two-part disinfecting system and compositions and methods related thereto
Assignee: Ecolab USA Inc
•
Filing: 1998-09-03
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Granted: 2000-09-26
•
Expires: 2018-09-03
Abstract
Abstract A stabilized two-part disinfecting system comprising a first part and a second part adapted to be mixed to yield an aqueous disinfecting composition. The first part contains a non-esterifying acid and an alcohol-containing humectant or antifreeze, while the second part contains a salt of an organic acid and an optional metal chlorite. Methods for making a disinfecting composition by mixing the two-part disinfecting system, as well as for disinfecting substrates by contact therewith, are also disclosed.
Inventors
- 👤 Robert D. Kross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/36
Claims Analysis
Total Claims: 57
Claim 1
Independent Claim
316 words
A stabilized two-part disinfecting system comprising a first part and a second part adapted to be mixed to yield an aqueous disinfecting composition, wherein: the first part comprises a non-esterifying inorganic acid, or a non-esterifying organic acid selected from the group consisting of organic sulphonic acid and organic phosphonic acid, or a mixture thereof, and an alcohol-containing humectant or antifreeze selected from the group consisting of a monohydroxy alcohol, a polyhydroxy alcohol, an alkyl ether of polyhydroxy alcohol and mixtures thereof; and the second part comprises a salt of an organic carboxylic acid, a metal chlorite and a base, wherein the base is present in the second part at a concentration sufficient to adjust the pH of the second part to a value ranging from about 9.0 to 11.5; and wherein the non-esterifying inorganic acid or non-esterifying organic acid is present in the first part at a concentration so that, when combined with the second part, it is sufficient to convert at least 50% of the salt of the organic carboxylic acid to its corresponding acid form and to reduce the pH of the disinfecting composition to a level below about 5.0; the alcohol-containing humectant or antifreeze is present in the first part at a concentration so that, when combined with the second part, it is present within the disinfecting composition at a concentration ranging from about 2% to about 40% by weight; the salt of the organic carboxylic acid is present in the second part at a concentration so that, when combined with the first part, it is present within the disinfecting composition at a concentration ranging from about 0.25% to about 10% by weight; and the metal chlorite is present in the second part at a concentration so that, when combined with the first part, it is present within the disinfecting composition at a concentration ranging from about 0.005% to about 1% by weight.
Claim 2
Dependent Claim
316 words
A stabilized two-part disinfecting system comprising a first part and a second part adapted to be mixed to yield an aqueous disinfecting composition, wherein: the first part comprises a non-esterifying inorganic acid, or a non-esterifying organic acid selected from the group consisting of organic sulphonic acid and organic phosphonic acid, or a mixture thereof, and an alcohol-containing humectant or antifreeze selected from the group consisting of a monohydroxy alcohol, a polyhydroxy alcohol, an alkyl ether of polyhydroxy alcohol and mixtures thereof; and the second part comprises a salt of an organic carboxylic acid, a metal chlorite and a base, wherein the base is present in the second part at a concentration sufficient to adjust the pH of the second part to a value ranging from about 9.0 to 11.5; and wherein the non-esterifying inorganic acid or non-esterifying organic acid is present in the first part at a concentration so that, when combined with the second part, it is sufficient to convert at least 50% of the salt of the organic carboxylic acid to its corresponding acid form and to reduce the pH of the disinfecting composition to a level below about 5.0; the alcohol-containing humectant or antifreeze is present in the first part at a concentration so that, when combined with the second part, it is present within the disinfecting composition at a concentration ranging from about 2% to about 40% by weight; the salt of the organic carboxylic acid is present in the second part at a concentration so that, when combined with the first part, it is present within the disinfecting composition at a concentration ranging from about 0.25% to about 10% by weight; and the metal chlorite is present in the second part at a concentration so that, when combined with the first part, it is present within the disinfecting composition at a concentration ranging from about 0.005% to about 1% by weight.
Claim 3
Dependent Claim
16 words
The system of claim 1 wherein the metal chlorite is an alkali or alkaline earth chlorite.
Claim 4
Dependent Claim
15 words
The system of claim 1 wherein the metal chlorite is sodium chlorite or potassium chlorite.
Claim 5
Dependent Claim
12 words
The system of claim 1 wherein the metal chlorite is sodium chlorite.
Claim 6
Dependent Claim
43 words
The system of claim 1 wherein the metal chlorite is present in the second part at a concentration so that, when combined with the first part, it is present within the disinfecting composition at a concentration ranging from 0.05% to 0.5% by weight.
Claim 7
Dependent Claim
43 words
The system of claim 1 wherein the metal chlorite is present in the second part at a concentration so that, when combined with the first part, it is present within the disinfecting composition at an concentration ranging from 0.1% to 0.4% by weight.
Claim 8
Dependent Claim
34 words
The system of claim 1 wherein the base is present in the second part at a concentration sufficient to adjust the pH of the second part to a value ranging from 10.5 to 11.0.
Claim 9
Dependent Claim
13 words
The system of claim 1 wherein the base is an alkali metal hydroxide.
Claim 10
Dependent Claim
16 words
The system of claim 8 wherein the alkali metal hydroxide is sodium potassium or lithium hydroxide.
Claim 11
Dependent Claim
11 words
The system of claim 8 wherein the base is sodium hydroxide.
Claim 12
Dependent Claim
21 words
The system of claim 1 wherein the salt of the organic carboxylic acid is a salt of an alpha-hydroxy carboxylic acid.
Claim 13
Dependent Claim
18 words
The system of claim 11 wherein the alpha-hydroxy carboxylic acid has a pK ranging from 2.8 to 4.2.
Claim 14
Dependent Claim
20 words
The system of claim 11 wherein the alpha-hydroxy carboxylic acid is glycolic, lactic, malic, mandelic, citric, tartaric, or mixtures thereof.
Claim 15
Dependent Claim
13 words
The system of claim 11 wherein the alpha-hydroxy carboxylic acid is lactic acid.
Claim 16
Dependent Claim
21 words
The system of claim 1 wherein the salt of the organic carboxylic acid is a potassium, sodium or quarternary ammonium salt.
Claim 17
Dependent Claim
22 words
The system of claim 1 wherein the salt of the organic carboxylic acid is sodium or potassium lactate, mandelate, citrate or malate.
Claim 18
Dependent Claim
16 words
The system of claim 1 wherein the salt of the organic carboxylic acid is sodium lactate.
Claim 19
Dependent Claim
47 words
The system of claim 1 wherein the salt of the organic carboxylic acid is present in the second part at a concentration so that, when combined with the first part, it is present within the disinfecting composition at a concentration ranging from 0.5% to 5.0% by weight.
Claim 20
Dependent Claim
47 words
The system of claim 1 wherein the salt of the organic carboxylic acid is present in the second part at a concentration so that, when combined with the first part, it is present within the disinfecting composition at an concentration ranging from 1.0% to 3.0% by weight.
Claim 21
Dependent Claim
18 words
The system of claim 1 wherein the non-esterifying inorganic acid is sulfuric, phosphoric, hydrochloric, nitric, or mixtures thereof.
Claim 22
Dependent Claim
13 words
The system of claim 20 wherein the non-esterifying inorganic acid is phosphoric acid.
Claim 23
Dependent Claim
18 words
The system of claim 20 wherein the non-esterifying inorganic acid is sodium acid sulfate or sodium dihydrogen phosphate.
Claim 24
Dependent Claim
24 words
The system of claim 1 wherein the non-esterifying organic acid is an alkyl or aryl sulfonic acid or an alkyl or aryl phosphonic acid.
Claim 25
Dependent Claim
51 words
The system of claim 1 wherein the non-esterifying inorganic or non-esterifying organic acid is present in the first part at a concentration so that, when combined with the second part, it is sufficient to convert at least 70% of the salt of the organic carboxylic acid to its corresponding acid form.
Claim 26
Dependent Claim
51 words
The system of claim 1 wherein the non-esterifying inorganic or non-esterifying organic acid is present in the first part at a concentration so that, when combined with the second part, it is sufficient to convert at least 90% of the salt of the organic carboxylic acid to its corresponding acid form.
Claim 27
Dependent Claim
51 words
The system of claim 1 wherein the non-esterifying inorganic acid or non-esterifying organic acid is present in the first part at a concentration so that, when combined with the second part, it is sufficient to lower the pH of the disinfecting composition to a value from about 2.3 to about 5.0.
Claim 28
Dependent Claim
50 words
The system of claim 1 wherein the non-esterifying inorganic acid or non-esterifying organic acid is present in the first part at a concentration so that, when combined with the second part, it is sufficient to lower the pH of the disinfecting composition to a value from 2.5 to about 5.0.
Claim 29
Dependent Claim
50 words
The system of claim 1 wherein the non-esterifying inorganic acid or non-esterifying organic acid is present in the first part at a concentration so that, when combined with the second part, it is sufficient to lower the pH of the disinfecting composition to a value from 2.7 to about 5.0.
Claim 30
Dependent Claim
15 words
The system of claim 1 wherein the alcohol-containing humectant or antifreeze is the monohydroxy alcohol.
Claim 31
Dependent Claim
15 words
The system of claim 29 wherein the monohydroxy alcohol is ethyl alcohol, n-propanol or isopropanol.
Claim 32
Dependent Claim
20 words
The system of claim 1 wherein the alcohol-containing humectant or antifreeze is the polyhydroxy alcohol or the alkyl ether thereof.
Claim 33
Dependent Claim
31 words
The system of claim 31 wherein the polyhydroxy alcohol or the alkyl ether thereof is glycerin, sorbitol, 1,2-propylene glycol, 1,3-propylene glycol, dipropylene glycol, alkyl ethers of dipropylene glycol, or mixtures thereof.
Claim 34
Dependent Claim
15 words
The system of claim 1 wherein the alcohol-containing humectant or antifreeze is the alcohol-containing humectant.
Claim 35
Dependent Claim
13 words
The system of claim 33 wherein the alcohol-containing humectant is glycerin or sorbitol.
Claim 36
Dependent Claim
15 words
The system of claim 1 wherein the alcohol-containing humectant or antifreeze is the alcohol-containing antifreeze.
Claim 37
Dependent Claim
13 words
The system of claim 35 wherein the alcohol-containing antifreeze is a propylene glycol.
Claim 38
Dependent Claim
45 words
The system of claim 1 wherein the alcohol-containing humectant or antifreeze is present in the first part at a concentration so that, when combined with the second part, it is present within the disinfecting composition at a concentration ranging from 3% to 25% by weight.
Claim 39
Dependent Claim
45 words
The system of claim 1 wherein the alcohol-containing humectant or antifreeze is present in the first part at a concentration so that, when combined with the second part, it is present within the disinfecting composition at an concentration ranging from 5% to 15% by weight.
Claim 40
Dependent Claim
22 words
The system of claim 1 wherein the first part and the second part are adapted to be mixed in about equal volumes.
Claim 41
Dependent Claim
23 words
The system of claim 1 wherein the first and the second part are adapted to be mixed at a volume ratio of 1:1.
Claim 42
Dependent Claim
56 words
The system of claim 1 wherein the concentrations of the non-esterifying inorganic and/or non-esterifying organic acid and the alcohol-containing humectant or antifreeze in the first part are from about 0.002% to about 1.0% by weight for the non-esterifying inorganic acid or non-esterifying organic acid, and about 4% to about 80% for the alcohol-containing humectant or antifreeze.
Claim 43
Dependent Claim
54 words
The system of claim 39 wherein the concentrations of the salt of the organic carboxylic acid and the metal chlorite in the second part are from about 0.5% to about 20% by weight for the salt of the organic carboxylic acid, and from about 0.01% to about 2% by weight for the metal chlorite.
Claim 44
Dependent Claim
16 words
The system of claim 1 wherein the first part is an aqueous solution, cream or gel.
Claim 45
Dependent Claim
16 words
The system of claim 1 wherein the second part is an aqueous solution, cream or gel.
Claim 46
Dependent Claim
24 words
The system of claim 1 wherein at least one of the first part or the second part is in solid or non-aqueous liquid form.
Claim 47
Dependent Claim
25 words
The system of claim 1 wherein the disinfecting composition further comprises a textural modifier, wetting agent, thickening agent, film-forming polymer, colorant, preservative, or mixture thereof.
Claim 48
Dependent Claim
21 words
A disinfecting composition formed by mixing the first part and the second part of the two-part disinfecting composition of claim 1.
Claim 49
Dependent Claim
24 words
A method for making a disinfecting composition comprising mixing the first part and the second part of the two-part disinfecting composition of claim 1.
Claim 50
Dependent Claim
25 words
The method of claim 48 wherein both the first part and the second part are in the form of an aqueous solution, cream or gel.
Claim 51
Dependent Claim
21 words
The method of claim 48 wherein at least one of the first part or second part is in a concentrated form.
Claim 52
Dependent Claim
20 words
The method of claim 50 wherein the concentrated from is mixed with water prior to mixing with the other component.
Claim 53
Dependent Claim
20 words
The method of claim 50 wherein the concentrated form is mixed with the other component, and then diluted with water.
Claim 54
Dependent Claim
26 words
The method of claim 48 wherein at least one of the first part or second part is in the form of a solid or non-aqueous liquid.
Claim 55
Dependent Claim
28 words
A method for disinfecting a substrate comprising contacting the substrate with an effective amount of a disinfecting composition formed by mixing the two-part disinfecting system of claim 1.
Claim 56
Dependent Claim
16 words
The method of claim 54 wherein the substrate is skin or tissue of a warm-blooded animal.
Claim 57
Dependent Claim
15 words
The method of claim 54 wherein the substrate is a teat of a dairy cow.
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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) | 2003-09-26 | 2004-03-27 | 2004-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-09-26 | 2008-03-27 | 2008-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-09-26 | 2012-03-27 | 2012-09-26 | $7700.00 | Window Closed / Lapsed |