US4518585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen peroxide disinfecting and sterilizing compositions
Assignee: STWB Inc
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Filing: 1979-11-20
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Granted: 1985-05-21
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Expires: 1999-11-20
Abstract
Abstract Aqueous acidic disinfecting and sterilizing compositions containing hydrogen peroxide, a surfactant and an aqueous alcoholic mixture of a tertiary amine and a fatty acid alkanolamide are non-irritating, have in-use stability and are effective for cold and warm sterilization.
Inventors
- 👤 Donald F. Greene
- 👤 Virginia L. Urban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:30
CPC Classifications
A; A01; A01N; A01N59/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
103 words
An aqueous disinfecting and sterilizing composition consisting essentially of by weight of the composition: (a) from about 0.5 to about 50 percent of hydrogen peroxide, (b) from about 0.1 to about 30 percent of a surfactant which is compatible with hydrogen peroxide, (c) from about 0.1 to about 3 percent of an organic or inorganic acid, (d) from 0 to about 1 percent of an organic triazole corrosion inhibitor, (e) from about 0.01 to about 1 percent of an aqueous-alcoholic mixture of a tertiary amine and a fatty acid alkanolamide and (f) the balance water; said composition havng a pH below about 5.
Claim 2
Dependent Claim
103 words
An aqueous disinfecting and sterilizing composition consisting essentially of by weight of the composition: (a) from about 0.5 to about 50 percent of hydrogen peroxide, (b) from about 0.1 to about 30 percent of a surfactant which is compatible with hydrogen peroxide, (c) from about 0.1 to about 3 percent of an organic or inorganic acid, (d) from 0 to about 1 percent of an organic triazole corrosion inhibitor, (e) from about 0.01 to about 1 percent of an aqueous-alcoholic mixture of a tertiary amine and a fatty acid alkanolamide and (f) the balance water; said composition havng a pH below about 5.
Claim 3
Dependent Claim
54 words
A composition according to claim 1 wherein the surfactant is selected from the group consisting of ethoxylated fatty alcohols containing from 11 to 15 carbon atoms in the alcohol and from 3 to 40 moles of ethylene oxide, ethylenediamine-reacted block copolymers of polyoxyethylene-polyoxypropyene, ethylene glycol-reacted polyoxyethylene-polyoxypropylene copolymers, alkyl phenol ethoxylates, and fatty imidazoline derivatives.
Claim 4
Dependent Claim
12 words
A composition according to claim 2 wherein the corrosion inhibitor is benzotriazole.
Claim 5
Dependent Claim
12 words
A composition according to claim 3 wherein the acid is phosphoric acid.
Claim 6
Dependent Claim
62 words
A composition according to claim 4 wherein in the aqueous-alcoholic mixture of a tertiary amine and fatty acid alkanolamide, the alcohol is isopropyl alcohol in amount about 5 percent of the mixture, the tertiary amine is methenamine in amount about 20 percent of the mixture and the fatty acid alkanolamide is in amount about 20 to about 30 percent of the mixture.
Claim 7
Dependent Claim
18 words
A composition according to claim 5 wherein the hydrogen peroxide concentration is from about 0.5 to 7.5 percent.
Claim 8
Dependent Claim
65 words
A composition according to claim 6 wherein (a) the hydrogen peroxide concentration is about 7.5 percent, (b) the surfactant concentration is about 1 percent, (c) the phosphoric acid concentration is about 0.85 percent, (d) the benzotriazole concentration is from 0 to about 0.1 percent, and (e) the aqueous-isopropyl alcoholic methenamine-fatty acid alkanolamide mixture concentration is about 0.2 percent; and the pH is below about 3.
Claim 9
Dependent Claim
16 words
A composition according to claim 2 wherein the surfactant is an ethylenediamine-reacted block copolymer of polyoxyethylene-polyoxypropylene.
Claim 10
Dependent Claim
18 words
A composition according to claim 8 wherein the acid is phosphoric acid and the corrosion inhibitor is benzotriazole.
Claim 11
Dependent Claim
63 words
A composition according to claim 9 wherein in the aqueous-alcoholic mixture of a tertiary amine and a fatty acid alkanolamide the alcohol is isopropyl alcohol in amount about 5 percent of the mixture, the tertiary amine is methenamine in amount about 20 percent of the mixture and the fatty acid alkanolamide is in amount about 20 to about 30 percent of the mixture.
Claim 12
Dependent Claim
19 words
A composition according to claim 10 wherein the hydrogen peroxide concentration is from about 0.5 to about 7.5 percent.
Claim 13
Dependent Claim
61 words
A composition according to claim 11 wherein (a) the hydrogen peroxide concentration is about 7.5 percent, (b) the concentration of the ethylenediamine-reacted block copolymer of polyoxyethylene-polyoxypropylene is about 1 percent, (c) the phosphoric acid concentration is about 0.85 percent, (d) the benzotriazole concentration is about 0.1 percent, and (e) the aqueous-isopropyl alcoholic methenamine-fatty acid alkanolamide mixture concentration is about 0.2 percent.
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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) | 1988-05-20 | 1988-11-19 | 1989-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-20 | 1992-11-19 | 1993-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-20 | 1996-11-19 | 1997-05-21 | $7700.00 | Window Closed / Lapsed |