US3956478A
Expired / Lapsed
US
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Dentifrice composition
Assignee: Colgate Palmolive Co
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Filing: 1975-05-06
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Granted: 1976-05-11
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Expires: 1995-05-06
Abstract
Abstract Dentifrice composition containing a monofluorophosphate and polishing agent containing calcium carbonate and insoluble alkali metal metaphosphate, alumina or mixture thereof. The ratio of calcium carbonate to insoluble alkali metal metaphosphate and to alumina is about 3:1 to about 1000:1. This dentifrice retains a desirable level of soluble fluoride upon aging and when insoluble alkali metal metaphosphate is present, does not cause substantial corrosion of unlined aluminum containers.
Inventors
- 👤 William James King
- 👤 Leo Thomas Murray
- 👤 Gerhard Martin Salzmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:23
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/526
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
68 words
A dentifrice composition comprising a water-soluble monofluorophosphate in amount which provides about 0.01-1% by weight fluorine to the dentifrice and about 20-95% by weight of a water-insoluble compatible polishing material consisting essentially of a mixture of calcium carbonate with hydrated alumina; the ratio of said calcium carbonate to said hydrated alumina being about 3:1 to about 1000:1; said dentifrice having an initial pH of about 7 to 9.5.
Claim 2
Dependent Claim
68 words
A dentifrice composition comprising a water-soluble monofluorophosphate in amount which provides about 0.01-1% by weight fluorine to the dentifrice and about 20-95% by weight of a water-insoluble compatible polishing material consisting essentially of a mixture of calcium carbonate with hydrated alumina; the ratio of said calcium carbonate to said hydrated alumina being about 3:1 to about 1000:1; said dentifrice having an initial pH of about 7 to 9.5.
Claim 3
Dependent Claim
14 words
The dentifrice composition claimed in claim 1 wherein said water-soluble monofluorophosphate is sodium monofluorophosphate.
Claim 4
Dependent Claim
34 words
The dentifrice composition claimed in claim 2 wherein said polishing agent is present in an amount of about 20% to about 75% by weight of said composition and said composition is a dental cream.
Claim 5
Dependent Claim
20 words
The dentifrice composition claimed in claim 2 wherein said monofluorophosphate is present in an amount of about 0.76% by weight.
Claim 6
Dependent Claim
23 words
The dentifrice composition claimed in claim 2 wherein the ratio of said calcium carbonate to said alumina is about 3:1 to about 100:1.
Claim 7
Dependent Claim
23 words
The dentifrice composition claimed in claim 2 wherein the ratio of said calcium carbonate to said alumina is about 35:1 to about 52:1.
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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |