US4332791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toothpaste active against plaque comprising a copper compound and a silica polishing agent
Assignee: BELNDAX-WERKE R SCHNEIDER & Co
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Filing: 1981-04-09
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Granted: 1982-06-01
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Expires: 2001-04-09
Abstract
Abstract This invention relates to a novel toothpaste and more particularly, to a new toothpaste which includes a silica polishing agent and at least one copper compound. This toothpaste has proven effective against plaque formation on teeth but does not exhibit any of the side effects of the prior art formulations such as discoloring.
Inventors
- 👤 Helmut Raaf
- 👤 Dieter Becker
- 👤 Franz Frosch
- 👤 Helmut Harth
- 👤 Helmar R. Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:12
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/25
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
27 words
An aqueous toothpaste composition containing at least one water-soluble copper compound and at least one polishing agent, the major part of said polishing agent being silicon dioxide.
Claim 2
Dependent Claim
27 words
An aqueous toothpaste composition containing at least one water-soluble copper compound and at least one polishing agent, the major part of said polishing agent being silicon dioxide.
Claim 3
Dependent Claim
20 words
A method of reducing or preventing dental plaque formation comprising applying the composition of claim 1 to a tooth surface.
Claim 4
Dependent Claim
17 words
A toothpaste composition as claimed in claim 1 wherein said polishing agent is a silicon dioxide xerogel.
Claim 5
Dependent Claim
26 words
A toothpaste composition as claimed in claim 3 wherein said silicon dioxide xerogel has a surface of between about 150 and about 800 m 2 /g.
Claim 6
Dependent Claim
19 words
A toothpaste composition as claimed in claim 1 wherein said polishing agent is a partially dehydrated silicon dioxide hydrogel.
Claim 7
Dependent Claim
17 words
A toothpaste composition as claimed in claim 1 wherein said polishing agent is a crystalline silicon dioxide.
Claim 8
Dependent Claim
39 words
A toothpaste composition as claimed in claim 1 further including additional compatible polishing agents provided that the amount of said additional polishing agents present is less than 50% of the total amount of polishing agent present in said composition.
Claim 9
Dependent Claim
25 words
A toothpaste composition as claimed in claim 7 wherein said additional polishing agents are selected from the group consisting of powdered synthetic plastic polishing agents.
Claim 10
Dependent Claim
34 words
A toothpaste composition as claimed in claim 1 wherein the amount of copper compound present is between about 0.001% and about 5% by weight of the total composition based on the amount of copper.
Claim 11
Dependent Claim
34 words
A toothpaste composition as claimed in claim 9 wherein the amount of copper compound present is between about 0.05% and about 1.5% by weight of the total composition based on the amount of copper.
Claim 12
Dependent Claim
28 words
A toothpaste composition as claimed in claim 1 wherein said copper compound is selected from the group consisting of inorganic copper salts and copper salts of organic acids.
Claim 13
Dependent Claim
38 words
A toothpaste composition as claimed in claim 1 further including at least one compound selected from the group consisting of a moisturizer, a thickener, a binding agent, a surfactant, a flavouring agent, a preservative, and a fluorine compound.
Claim 14
Dependent Claim
18 words
A toothpaste composition as claimed in claim 11 wherein said copper compound is a water-soluble inorganic copper salt.
Claim 15
Dependent Claim
52 words
A toothpaste composition as claimed in claim 11 wherein said copper salt is at least one compound selected from the group consisting of copper citrate, copper tartrate, copper pantothenate, copper lactate, copper malate, copper mandelate, copper sorbate, copper benzoate, copper salicylate, copper gluconate, copper phytate, copper glycerophosphate, copper glycinate, and copper cinnamate.
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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) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |