EP0109279B1
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EP
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Hydrogen peroxide composition
Assignee: Ethicon Inc
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Filing: 1983-11-11
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Granted: 1988-06-15
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Expires: 2003-11-11
Abstract
Abstract An antimicrobial composition containing hydrogen peroxide is diaclosed. The composition is non-corrosive to surgical instruments and contains 4%-7% hydrogen peroxide, 0.1 % to 0.3% of a chelating agent, 0.1 % of a water soluble zinc compound, 0.1 % to 0.3% of a sodium cocoyl sarcosinate or is fatty acid-based analogs, an anionic surfactant selected from the group consisting of sodium n-decyl diphenylether disulfonate or sodium lauryl sulfate and a buffer system to maintain the pH of the composition in a pH range of from 4 to 6.
Inventors
- 👤 George William Willcockson
- 👤 David C.F. Law
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 19:38
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; A; A01; A01N; A01N59/00; C11D3/39; C11D3/3947
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
130 words
An aqueous disinfecting solution characterised by having a buffered pH of from 4 to 6.0 and comprising from 4% to 6% by weight hydrogen peroxide, from 0.1% to 0.3% by weight of an anionic surfactant selected from the group consisting of sodium lauryl sulfate and sodium n-decyl diphenylether disulfonate; from 0.1 % to 0.3% by weight of a sarcosinate surfactant selected from the group consisting of sodium cocoyl sarcosinate and sodium lauryl sarcosinate; 0.1% by weight of a water soluble zinc compound selected from the group consisting of zinc sulfate, zinc acetate, zinc nitrate and zinc gluconate; and from 0.1% to 0.3% by weight of a nitrogen containing chelating agent selected from the group consisting of N-(hydroxy-ethyl) ethylenediamine triacetic acid, ethylenediamine tetraacetic acid, diethylenetriamine pentaacetic acid, and their sodium salts.
Claim 2
Dependent Claim
130 words
An aqueous disinfecting solution characterised by having a buffered pH of from 4 to 6.0 and comprising from 4% to 6% by weight hydrogen peroxide, from 0.1% to 0.3% by weight of an anionic surfactant selected from the group consisting of sodium lauryl sulfate and sodium n-decyl diphenylether disulfonate; from 0.1 % to 0.3% by weight of a sarcosinate surfactant selected from the group consisting of sodium cocoyl sarcosinate and sodium lauryl sarcosinate; 0.1% by weight of a water soluble zinc compound selected from the group consisting of zinc sulfate, zinc acetate, zinc nitrate and zinc gluconate; and from 0.1% to 0.3% by weight of a nitrogen containing chelating agent selected from the group consisting of N-(hydroxy-ethyl) ethylenediamine triacetic acid, ethylenediamine tetraacetic acid, diethylenetriamine pentaacetic acid, and their sodium salts.
Claim 3
Dependent Claim
42 words
An aqueous disinfecting solution of Claim 1 in which the anionic surfactant is sodium n-decyl diphenyl ether disulfonate; the sarcosinate surfactant is sodium cocoyl sarcosinate; the water soluble zinc compound is zinc sulfate; and the chelating agent is N-(hydroxyl-ethyl) ethylenediamine triacetic acid.
Claim 4
Dependent Claim
21 words
A process of disinfecting metallic surgical instruments comprising contacting said instruments with a solution according to claim 1 or claim 2.
Claim 5
Dependent Claim
140 words
A process for preparing an aqueous disinfecting solution according to claim 1 comprising mixing from 4% to 6% by weight hydrogen peroxide, from 0.1% to 0.3% by weight of an anionic surfactant selected from the group consisting of sodium lauryl sulfate and sodium n-decyl diphenylether disulfonate; from 0.1 % to 0.3% by weight of a sarcosinate surfactant selected from the group consisting. of sodium cocoyl sarcosinate and sodium lauryl sarcosinate; 0.1% by weight of a water soluble zinc compound selected from the group consisting of zinc sulfate, zinc acetate, zinc nitrate and zinc gluconate; and from 0.1% to 0.3% by weight of a nitrogen containing chelating agent selected from the group consisting of N-(hydroxy-ethyl) ethylenediamine triacetic acid, ethylenediamine tetraacetic acid, diethylenetriamine pentaacetic acid and their sodium salts, with water and buffering the solution to a pH from 4 to 6.0.
References Cited (Backward Citations)
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