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US4064231A
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Dentifrice composition
Assignee: Kao Corp
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Filing: 1976-08-18
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Granted: 1977-12-20
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Expires: 1996-08-18
Abstract
Abstract A dentifrice composition comprising a water-soluble fluoride of the type customarily added to dentifrices as a caries-preventing agent, in an amount of 100 to 2,000 ppm calculated as fluorine, and 0.3 to 13% by weight of montmorillonite having the following composition (% by weight, calculated on an anhydrous basis):
Inventors
- 👤 Toshiro Asakawa
- 👤 Atsuo Ishida
- 👤 Shizuo Hayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:49
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/26
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
70 words
A dentifrice composition containing a water-soluble fluorine-containing caries-preventing agent in an amount of from 100 to 2,000 ppm calculated as fluorine, and from 0.3 to 13 percent by weight of montmorillonite having the composition, in terms of percent by weight, calculated on an anhydrous basis, ______________________________________
SiO.sub.2 60.0 to 70.0
MgO 2.0 to 5.0
Fe.sub.2 O.sub.3
zero to 2.0
Al.sub.2 O.sub.3
20.0 to 30.0
Na.sub.2 O 2.0 to 5.0
______________________________________
Claim 2
Dependent Claim
70 words
A dentifrice composition containing a water-soluble fluorine-containing caries-preventing agent in an amount of from 100 to 2,000 ppm calculated as fluorine, and from 0.3 to 13 percent by weight of montmorillonite having the composition, in terms of percent by weight, calculated on an anhydrous basis, ______________________________________
SiO.sub.2 60.0 to 70.0
MgO 2.0 to 5.0
Fe.sub.2 O.sub.3
zero to 2.0
Al.sub.2 O.sub.3
20.0 to 30.0
Na.sub.2 O 2.0 to 5.0
______________________________________
Claim 3
Dependent Claim
30 words
A dentifrice as claimed in claim 1 containing from 300 to 1,200 ppm, calculated as fluorine, or said caries-preventing agent, and from 1 to 6% by weight of said substance.
Claim 4
Dependent Claim
49 words
A dentifrice composition as claimed in claim 1 in which the balance of said composition consists essentially of from 5 to 70wt. % of a polishing agent, from 5 to 40 wt. % of a swelling agent, from 0.5 to 5 wt. % of a foaming agent and water.
References Cited (Backward Citations)
US3855147A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |