US4264580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental cream composition
Assignee: Colgate Palmolive Co
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Filing: 1979-12-17
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Granted: 1981-04-28
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Expires: 1999-12-17
Abstract
Abstract Dental cream having a smooth texture with little tendency to form grain containing calcium carbonate polishing agent and sodium lauryl sulphate surface active agent having a broad distribution of alkyl groups containing 10-18 carbon atoms and as additive which reduces grain an alkali metal pyrophosphate or an anionic phosphate mono- and di-ester mixture.
Inventors
- 👤 Giacinto G. Barberio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:07
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K8/30; A61K8/46; A61K8/463; A61K8/55; A61K8/556; A61Q; A61Q11/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
A dental cream consisting essentially of a vehicle of water and humectant and a gelling agent, from 20 to 75% by weight of a polishing material wherein at least about 95% by weight of said polishing material is calcium carbonate, from 0.1 to 5% by weight of a surface active material including sodium lauryl sulphate having a broad distributin of alkyl groups, the C 10 content being about 1 to 8% by weight, the C 12 content being about 40 to 70% by weight, the C 14 content being about 13 to 30% by weight, the C 16 content being about 5 to 16% by weight and the C 18 content being about 0 to 23% by weight, and from 0.2 to 1% by weight of an additive of an anionic phosphate ester comprising a mixture of mono-ester of the formula ##STR3## di-ester of the formula ##STR4## wherein M' is hydrogen, alkali metal or ammonium, R is an alkyl group of 10-20 carbon atoms and n is an integer from 1 to 60.
Claim 2
Dependent Claim
173 words
A dental cream consisting essentially of a vehicle of water and humectant and a gelling agent, from 20 to 75% by weight of a polishing material wherein at least about 95% by weight of said polishing material is calcium carbonate, from 0.1 to 5% by weight of a surface active material including sodium lauryl sulphate having a broad distributin of alkyl groups, the C 10 content being about 1 to 8% by weight, the C 12 content being about 40 to 70% by weight, the C 14 content being about 13 to 30% by weight, the C 16 content being about 5 to 16% by weight and the C 18 content being about 0 to 23% by weight, and from 0.2 to 1% by weight of an additive of an anionic phosphate ester comprising a mixture of mono-ester of the formula ##STR3## di-ester of the formula ##STR4## wherein M' is hydrogen, alkali metal or ammonium, R is an alkyl group of 10-20 carbon atoms and n is an integer from 1 to 60.
Claim 3
Dependent Claim
20 words
The dental cream claims in claim 1 wherein said polishing agent is present in amount of about 40-55% by weight.
Claim 4
Dependent Claim
17 words
The dental cream claims in claim 2 wherein said calcium carbonate is the only polishing agent present.
Claim 5
Dependent Claim
36 words
The dental cream claims in claim 1 wherein said sodium lauryl sulphate contains about 3% C 10 ; 56% C 12 ; 21% C 14 ; 9% C 16 ; and 11% C 18 alkyl groups.
Claim 6
Dependent Claim
19 words
The dental cream claims in claim 1 wherein said additive is present in amount of about 0.2-0.5% by weight.
Claim 7
Dependent Claim
37 words
The dental cream claims in claim 1 wherein said anionic phosphate ester mixture contains alkyl groups of 16 to 18 carbon atoms and the weight ratio of mono-ester to di-ester is from about 1:10 to about 10:1.
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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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |