US4590066A
Expired / Lapsed
US
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Oral compositions
Assignee: Procter and Gamble Co
•
Filing: 1985-02-19
•
Granted: 1986-05-20
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Expires: 2005-02-19
Abstract
Abstract Disclosed are oral compositions containing particular pyrophosphate salts which provide an anticalculus benefit.
Inventors
- 👤 John J. Parran, Jr.
- 👤 Nabil Y. Sakkab
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:12
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61Q; A61Q11/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
116 words
A toothpaste composition comprising: (a) from about 10% to about 70% of which will allow for the pyrophosphate ion concentration specified below; (b) an amount of a fluoride ion source sufficient to supply from about 50 ppm to about 3500 ppm of fluoride ions; (c) an amount of a pyrophosphate salt selected from the group consisting of dialkali metal and mixtures of dialkali metal and tetraalkali metal pyrophosphate salts sufficient to provide at least 1.5% P 2 O 7 -4 ; and (d) the remainder water; wherein the pH of said composition is from about 6.0% to about 10.0 and the composition does not contain more than about 4.0% K 4 P 2 O 7 .
Claim 2
Dependent Claim
116 words
A toothpaste composition comprising: (a) from about 10% to about 70% of which will allow for the pyrophosphate ion concentration specified below; (b) an amount of a fluoride ion source sufficient to supply from about 50 ppm to about 3500 ppm of fluoride ions; (c) an amount of a pyrophosphate salt selected from the group consisting of dialkali metal and mixtures of dialkali metal and tetraalkali metal pyrophosphate salts sufficient to provide at least 1.5% P 2 O 7 -4 ; and (d) the remainder water; wherein the pH of said composition is from about 6.0% to about 10.0 and the composition does not contain more than about 4.0% K 4 P 2 O 7 .
Claim 3
Dependent Claim
15 words
A toothpaste composition according to claim 1 wherein sodium fluoride is the fluoride ion source.
Claim 4
Dependent Claim
22 words
An oral composition according to claim 1 wherein the pyrophosphate ion is provided by a mixture of disodium pyrophosphate and tetrasodium pyrophosphate.
Claim 5
Dependent Claim
24 words
A toothpaste composition according to claim 1 wherein the pyrophosphate ion is provided by a mixture of disodium pyrophosphate, tetrasodium pyrophosphate and tetrapotassium pyrophosphate.
Claim 6
Dependent Claim
21 words
A toothpaste composition according to claim 1 which in addition contains from about 0 to about 10% of a sudsing agent.
Claim 7
Dependent Claim
20 words
A toothpaste composition according to claim 1 which in addition contains from about 0.1% to about 1.0% of a binder.
Claim 8
Dependent Claim
20 words
A toothpaste composition according to claim 1 which in addition contains from about 0 to about 70% of a humectant.
Claim 9
Dependent Claim
16 words
A toothpaste composition in accordance with claim 1 wherein the dental abrasive is β-phase calcium pyrophosphate.
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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) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |