US5256701A
Expired / Lapsed
US
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Disinfectant composition
Assignee: Meiji Seika Kaisha Ltd
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Filing: 1991-11-19
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Granted: 1993-10-26
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Expires: 2011-11-19
Abstract
Abstract A disinfectant composition comprising an aqueous solution or an alcoholic aqueous solution in a concentration of 83 v/v % or less which contains hydroxypropyl cellulose in a concentration of from 0.5 to 10 w/v %, iodine in a concentration of from 0.01 to 1.0 w/v %, and an iodide in a concentration of not more than 0.5 w/v %. The composition has reduced skin irritation while exhibiting sufficient bactericidal and viricidal activity.
Inventors
- 👤 Zenzo Tamura
- 👤 Kuniko Shoji
- 👤 Chieko Azegami
- 👤 Takao Kunisada
- 👤 Kaoru Hosoi
- 👤 Kiwa Suzuki
- 👤 Shikifumi Kitazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:11
CPC Classifications
A; A01; A01N; A01N59/00; A01N59/12; A61; A61K; A61K33/00; A61K33/18; A61K47/00; A61K47/50; A61K47/51; A61K47/56; A61K47/61; A61P; A61P17/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
40 words
An aqueous disinfectant composition consisting essentially of 0.5-10 w/v % of hydroxypropyl cellulose, 0.01-1.0 w/v % of iodine, 0-0.5 w/v % of an iodide, 0-83 v/v % of an alcohol and water in an amount to make up the balance.
Claim 2
Dependent Claim
40 words
An aqueous disinfectant composition consisting essentially of 0.5-10 w/v % of hydroxypropyl cellulose, 0.01-1.0 w/v % of iodine, 0-0.5 w/v % of an iodide, 0-83 v/v % of an alcohol and water in an amount to make up the balance.
Claim 3
Dependent Claim
21 words
A disinfectant composition as claimed in claim 1, wherein said iodide is selected from potassium iodide, sodium iodide and hydrogen iodide.
Claim 4
Independent Claim
68 words
A method of disinfecting skin, tissue, or instruments in need of disinfection, comprising applying to said skin, tissue, or instruments in need of disinfection, an effective disinfecting amount of an aqueous composition consisting essentially of 0.5-10 w/v % of hydroxypropyl cellulose, 0.01-1.0 w/v % of iodine, 0-0.5 w/v % of an iodide, 0-83 v/v % of an alcohol and water in an amount to make up the balance.
Claim 5
Independent Claim
68 words
A method of disinfecting skin, tissue, or instruments in need of disinfection, comprising applying to said skin, tissue, or instruments in need of disinfection, an effective disinfecting amount of an aqueous composition consisting essentially of 0.5-10 w/v % of hydroxypropyl cellulose, 0.01-1.0 w/v % of iodine, 0-0.5 w/v % of an iodide, 0-83 v/v % of an alcohol and water in an amount to make up the balance.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-25 | 1997-04-26 | 1997-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-25 | 2001-04-26 | 2001-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-25 | 2005-04-26 | 2005-10-26 | $7700.00 | Window Closed / Lapsed |