US4045364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Iodophor soap tissues
Assignee: Wyeth Holdings LLC
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Filing: 1976-06-11
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Granted: 1977-08-30
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Expires: 1996-06-11
Abstract
Abstract A disposable paper with a slightly abrasive surface impregnated with an iodophor and detergent is an excellent germicidal pre-wash in the surgical scrub routine or in any situation where it is important to impede the growth of microorganisms. By using substantially dry impregnated papers the product may be packaged and stored for at least 18 months without undue deterioration. In the presence of undue moisture, the paper degrades too fast for adequate storage.
Inventors
- 👤 Ferdinand Joseph Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
A; A61; A61Q; A61Q17/00; A61Q17/005; A61K; A61K8/00; A61K8/02; A61K8/0208; A61Q19/00; A61Q19/10; C; C11; C11D; C11D17/00; C11D17/04; C11D17/049; C11D3/00; C11D3/48; D; D21; D21H; D21H21/00; D21H21/14; D21H21/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
A single use wet strength paper useful in germicidal cleansing procedures impregnated with a mixture comprising: a. a nonionic detergent consisting of condensates of propylene oxide, propylene glycol and ethylene oxide forming a compound having a molecular weight of about 5,000 to about 10,000, about 18 parts; b. an anionic detergent consisting of sodium N-coconut-acid-N-methyl taurate, about 26 parts; c. an anionic detergent consisting of a coconut-oil acid ester of sodium isethionate, about 1 part; d. iodine, about 2.6 parts; e. sodium iodide about 1.5 parts; f. isopropanol about 5.0 parts; g. a weak organic acid, about .2 parts; and h. water, about 45.4 parts.
Claim 2
Dependent Claim
105 words
A single use wet strength paper useful in germicidal cleansing procedures impregnated with a mixture comprising: a. a nonionic detergent consisting of condensates of propylene oxide, propylene glycol and ethylene oxide forming a compound having a molecular weight of about 5,000 to about 10,000, about 18 parts; b. an anionic detergent consisting of sodium N-coconut-acid-N-methyl taurate, about 26 parts; c. an anionic detergent consisting of a coconut-oil acid ester of sodium isethionate, about 1 part; d. iodine, about 2.6 parts; e. sodium iodide about 1.5 parts; f. isopropanol about 5.0 parts; g. a weak organic acid, about .2 parts; and h. water, about 45.4 parts.
Claim 3
Dependent Claim
18 words
The single use wet strength paper of claim 1 wherein the iodine is present as a polyvinylpyrrolidone-iodine complex.
Claim 4
Dependent Claim
17 words
The single use wet strength paper of claim 1 wherein the weak organic acid is citric acid.
Claim 5
Independent Claim
129 words
A method of preparing a storage stable iodine containing dry paper tissue comprising: a. combining water, about 45.4 parts; weak organic acid, about .2 parts; sodium iodide about 1.5 parts, isopropanol about 5.0 parts, and iodine 2.6 parts in a stainless steel vessel and agitating to obtain a clear solution; b. heating a nonionic condensate of propylene glycol, ethylene oxide and propylene oxide, about 18 parts, until melted, c. adding slowly the iodine solution (a) to the molten condensates (b); d. incorporating water, a sodium N-coconut-acid-N-methyltaurate, about 26 parts, and a coconut-oil acid ester of sodium isethionate, about 1 part, into the iodine combination (c) thereby forming an iodine-detergent composition; e. impregnating paper tissues with said composition; and, f. drying to a water content of less than about 8%.
Claim 6
Independent Claim
129 words
A method of preparing a storage stable iodine containing dry paper tissue comprising: a. combining water, about 45.4 parts; weak organic acid, about .2 parts; sodium iodide about 1.5 parts, isopropanol about 5.0 parts, and iodine 2.6 parts in a stainless steel vessel and agitating to obtain a clear solution; b. heating a nonionic condensate of propylene glycol, ethylene oxide and propylene oxide, about 18 parts, until melted, c. adding slowly the iodine solution (a) to the molten condensates (b); d. incorporating water, a sodium N-coconut-acid-N-methyltaurate, about 26 parts, and a coconut-oil acid ester of sodium isethionate, about 1 part, into the iodine combination (c) thereby forming an iodine-detergent composition; e. impregnating paper tissues with said composition; and, f. drying to a water content of less than about 8%.
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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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |