US4259383A
Expired / Lapsed
US
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Disinfecting tissue
Assignee: STWB Inc
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Filing: 1979-06-26
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Granted: 1981-03-31
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Expires: 1999-06-26
Abstract
Abstract A disinfecting tissue comprising an absorbent material having incorporated therein a disinfecting agent selected from (a) organic percarboxylic acids; (b) mixtures of a hydrogen peroxide donor with an organic carboxylic acid anhydride or a acyloxy-benzoic or -benzenesulfonic acid; and (c) a carboxylic acid amide; as defined in the specification. The disinfectant tissues are useful for the disinfection of the skin, hands, and inanimate surfaces.
Inventors
- 👤 Heinz Eggensperger
- 👤 Dieter Rehn
- 👤 Wolfgang Beilfuss
- 👤 Helmut Nolte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:34
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/34; A47; A47K; A47K10/00; A47K10/16; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/234; Y10T428/239; Y10T428/24; Y10T428/24479; Y10T428/24562; Y10T428/24777; Y10T428/24793
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
307 words
A disinfecting tissue comprising an absorbent material having incorporated therein a disinfecting agent where the disinfecting agent is selected from the group consisting of: (a) an organic percarboxylic acid of the formula ##STR4## where R 1 , R 2 and R 3 independently are hydrogen, chlorine, bromine, fluorine, nitro, cyano, trifluoromethyl, carboxy, methoxycarbonyl, aminocarbonyl, straight or branched alkyl having from 1 to 5 carbon atoms, phenyl, methoxy, ethoxy, acetyloxy, acetyl or hydroxysulfonyl, provided that at least one of R 1 , R 2 and R 3 is not hydrogen, or R 2 and R 3 , when attached to adjacent ring carbon atoms, form together with the adjacent ring carbon atoms an aromatic ring; (b) a mixture comprising an agent capable of generating hydrogen peroxide in water; and a compound selected from the group consisting of an organic carboxylic acid anhydride, and an acyloxy acid of the formula ##STR5## where R 4 is lower-alkyl which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, lower-alkoxy, lower-alkanoyloxy, carboxy and halo; or R 4 is phenyl which is unsubstituted or substituted by a substituent selected from the group consisting of lower-alkyl, lower-alkoxy, hydroxy and halo; and R 5 is carboxy or hydroxysulfonyl, and water-soluble salts of the acyloxy-acid; and (c) a carboxylic acid amide of the formula ##STR6## where R 6 , R 7 and R 8 independently are hydrogen, lower-alkyl, cycloalkyl, aryl or aryl-lower-alkyl, or R 6 and R 7 together with the carbonyl and nitrogen respectively to which they are attached form a lactam having from 4 to 8 ring atoms; and mixtures of two or all three of (a), (b) and (c); wherein the tissue is comprised of two layers of the absorbent material which are joined to form a multiplicity of pockets, the disinfecting agent being disposed in the pockets.
Claim 2
Dependent Claim
307 words
A disinfecting tissue comprising an absorbent material having incorporated therein a disinfecting agent where the disinfecting agent is selected from the group consisting of: (a) an organic percarboxylic acid of the formula ##STR4## where R 1 , R 2 and R 3 independently are hydrogen, chlorine, bromine, fluorine, nitro, cyano, trifluoromethyl, carboxy, methoxycarbonyl, aminocarbonyl, straight or branched alkyl having from 1 to 5 carbon atoms, phenyl, methoxy, ethoxy, acetyloxy, acetyl or hydroxysulfonyl, provided that at least one of R 1 , R 2 and R 3 is not hydrogen, or R 2 and R 3 , when attached to adjacent ring carbon atoms, form together with the adjacent ring carbon atoms an aromatic ring; (b) a mixture comprising an agent capable of generating hydrogen peroxide in water; and a compound selected from the group consisting of an organic carboxylic acid anhydride, and an acyloxy acid of the formula ##STR5## where R 4 is lower-alkyl which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, lower-alkoxy, lower-alkanoyloxy, carboxy and halo; or R 4 is phenyl which is unsubstituted or substituted by a substituent selected from the group consisting of lower-alkyl, lower-alkoxy, hydroxy and halo; and R 5 is carboxy or hydroxysulfonyl, and water-soluble salts of the acyloxy-acid; and (c) a carboxylic acid amide of the formula ##STR6## where R 6 , R 7 and R 8 independently are hydrogen, lower-alkyl, cycloalkyl, aryl or aryl-lower-alkyl, or R 6 and R 7 together with the carbonyl and nitrogen respectively to which they are attached form a lactam having from 4 to 8 ring atoms; and mixtures of two or all three of (a), (b) and (c); wherein the tissue is comprised of two layers of the absorbent material which are joined to form a multiplicity of pockets, the disinfecting agent being disposed in the pockets.
Claim 3
Dependent Claim
31 words
A disinfectant tissue in accordance with claim 1 wherein the disinfecting agent comprises a mixture of an agent capable of generating hydrogen peroxide in water and an organic carboxylic acid anhydride.
Claim 4
Dependent Claim
62 words
A disinfectant tissue in accordance with claim 2 wherein the agent capable of generating hydrogen peroxide in water is a salt of an inorganic peracid selected from the group consisting of alkali metal perborate, alkali metal percarbonate, alkali metal perphosphate, alkali metal peroxide, alkali metal peroxydisulfate, alkali metal percarbamate, ammonium perborate, ammonium percarbonate, ammonium perphosphate, ammonium peroxide, ammonium peroxydisulfate and ammonium percarbamate.
Claim 5
Dependent Claim
50 words
A disinfecting tissue in accordance with claim 3 wherein the carboxylic acid anhydride is selected from the group consisting of succinic anhydride, maleic anhydride, glutaric anhydride, phthalic anhydride, itaconic anhydride, homophthalic anhydride, 1,2,4,5-benzene-tetracarboxylic acid anhydride, 1,2,4-benzene-tricarboxylic acid anhydride, 1,2,3-benzene-tricarboxylic acid anhydride, benzoylcitric acid anhydride, dibenzoyltartaric acid anhydride and benzoic anhydride.
Claim 6
Dependent Claim
26 words
A disinfectant tissue in accordance with claim 4 wherein the inorganic peracid is alkali metal percarbonate and the disinfecting agent is succinic anhydride or benzoic anhydride.
References Cited (Backward Citations)
US1955891A
Cited
US2381852A
Cited
US2709665A
Cited
US3490454A
Cited
US3594468A
Cited
US3817702A
Cited
US3964486A
Cited
US4029758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |