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US3936385A
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US
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Denture cleanser
Assignee: Colgate Palmolive Co
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Filing: 1973-08-09
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Granted: 1976-02-03
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Expires: 1993-08-09
Abstract
Abstract Effervescent denture cleanser having excellent plaque-removing properties. It comprises a source of free chlorine, such as a dichloroisocyanurate, and a peroxygen compound effervescently reactive therewith in water, so as to give a denture soaking solution containing at least 100 ppm active chlorine and having a pH of at least about 9, preferably at least 10, and more preferably about 10.6 to 11.5.
Inventors
- 👤 Shu-Sing Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:46
CPC Classifications
A; A61; A61Q; A61Q11/00; A61Q11/02; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/22; A61K2800/00; A61K2800/20; A61K2800/22; A61K2800/222
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
155 words
A solid denture cleanser which on mixing with water effervesces and dissolves in the water to form a solution for soaking dentures, said cleanser comprising a dry stable mixture of a peroxygen compound which yields active oxygen on admixture with water and a chlorine compound which liberates hypochlorite chlorine on contact with water, said peroxygen compound being reactive with the components of said mixture in the presence of said water to liberate bubbles of gas effervesantly, said chlorine compound being present in amount sufficient to provide an amount of hypochlorite chlorine such that the atomic ratio of hypochlorite chlorine to active oxygen of said peroxygen compound is at least greater than about 1.1:1 whereby to provide at least about 100 ppm. of hypochlorite chlorine in water solution after oxygen formation has ceased and an alkaline material comprising a water-soluble anhydrous, alkaline salt which is sufficiently alkaline to give a pH of at least about 9.
Claim 2
Dependent Claim
155 words
A solid denture cleanser which on mixing with water effervesces and dissolves in the water to form a solution for soaking dentures, said cleanser comprising a dry stable mixture of a peroxygen compound which yields active oxygen on admixture with water and a chlorine compound which liberates hypochlorite chlorine on contact with water, said peroxygen compound being reactive with the components of said mixture in the presence of said water to liberate bubbles of gas effervesantly, said chlorine compound being present in amount sufficient to provide an amount of hypochlorite chlorine such that the atomic ratio of hypochlorite chlorine to active oxygen of said peroxygen compound is at least greater than about 1.1:1 whereby to provide at least about 100 ppm. of hypochlorite chlorine in water solution after oxygen formation has ceased and an alkaline material comprising a water-soluble anhydrous, alkaline salt which is sufficiently alkaline to give a pH of at least about 9.
Claim 3
Dependent Claim
31 words
A cleanser as in claim 1 further containing from about 0.01 to 1% of surfactant selected from the group consisting of anionic, nonionic, cationic and amphoteric surfactants capable of promoting foaming.
Claim 4
Dependent Claim
52 words
A cleanser as in claim 1 further containing at least one tabletting aid selected from the group consisting of binders, lubricants and disintegrating aids substantially inert under the conditions of use of the cleanser, the total amount of said tabletting aid being less than 50% of the total weight of cleanser composition.
Claim 5
Dependent Claim
38 words
A cleanser as in claim 5 wherein said tabletting aid is selected from the group consisting of glucose, gum acacia, gelatin, sucrose, starches, talc, magnesium stearate and polyethylene glycol having a molecular weight of from 600 to 4,000.
Claim 6
Dependent Claim
22 words
A cleanser as in claim 3 in the form of a tablet having a volume of from about 1 to 5 cc.
Claim 7
Dependent Claim
45 words
A cleanser as in claim 3 in the form of a powder the granules of which have particle sizes within the range such as to pass through a U.S. Standard 10 or 20 mesh sieve and be retained on a U.S. Standard 40 mesh sieve.
Claim 8
Dependent Claim
23 words
A cleanser as in claim 1 in which said alkaline material is present in amount to give a pH of above about 10.5.
Claim 9
Dependent Claim
51 words
A cleanser as in claim 1 in which said peroxygen compound comprises sodium perborate monohydrate, potassium monopersulfate or sodium carbonate peroxhydrate or mixtures thereof and said chlorine compound comprises sodium or potassium dichloroisocyanurate, trichloroisocyanuric acid, or mixtures thereof, and said alkaline material comprises sodium carbonate or trisodium phosphate or mixtures thereof.
Claim 10
Dependent Claim
16 words
A cleanser as in claim 1 in which said atomic ratio is at least about 2:1.
Claim 11
Dependent Claim
61 words
A cleanser as in claim 9, the proportions and nature of the ingredients thereof being such that when 3.6 grams of the composition is mixed with 120 ml of water, at the conclusion of the effervescence the pH of the resulting solution is about 10.6 to 11.5 and the active chlorine content of the resulting solution is at least 100 ppm.
Claim 12
Dependent Claim
18 words
A cleanser as in claim 10 in which said active chlorine content is up to about 1500 ppm.
Claim 13
Dependent Claim
17 words
A cleanser as in claim 11 in which said active chlorine content is above about 400 ppm.
Claim 14
Dependent Claim
20 words
A cleanser as in claim 10 in which said atomic ratio is in the range of about 2:1 to 3:1.
Claim 15
Dependent Claim
14 words
A cleanser as in claim 10 in which said atomic ratio is about 2.2:1.
Claim 16
Dependent Claim
17 words
A cleanser as in claim 13 in which said peroxygen compound is a hydrogen peroxide addition compound.
Claim 17
Dependent Claim
39 words
A cleanser as in claim 1 in which said peroxygen compound is a water-soluble monopersulfate which reacts with at least one alkaline component of said cleanser, on admixture of said cleanser with said water, to give off oxygen bubbles.
Claim 18
Dependent Claim
22 words
A cleanser as in claim 16 in which said peroxygen compound is potassium monopersulfate and said reactive alkaline component comprises trisodium phosphate.
Claim 19
Dependent Claim
24 words
Process for cleaning dentures comprises mixing water with a solid denture cleanser as defined in claim 1 and soaking said denture in said solution.
Claim 20
Dependent Claim
36 words
Process for cleaning dentures having dental plaque thereon as set forth in claim 18 in which said solution has a pH of about 10.6 to 11.5 and an active chlorine content of at least 100 ppm.
Claim 21
Dependent Claim
20 words
Process as in claim 19 in which said chlorine content is in the range of about 400 to 1500 ppm.
Claim 22
Dependent Claim
95 words
A denture cleanser as in claim 1 and comprising a first coloring agent and a second coloring agent, both of said agents being bleached by the action of said solution on standing, with said first coloring agent being bleached more rapidly, said first coloring agent being present in such concentration that its color predominates in said solution initially and for a plurality of minutes thereafter, the color of said second coloring agent thereafter becoming visible on standing for a period of less than 1 hour, owing to loss of color of said first coloring agent.
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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) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |