US4356168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opacified dental cream containing a binary fluorine-providing system
Assignee: Colgate Palmolive Co
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Filing: 1981-05-11
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Granted: 1982-10-26
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Expires: 2001-05-11
Abstract
Abstract An opacified dental cream which effects dental remineralization and reduces caries formation. The opacified dental cream contains a binary fluorine providing system which provides fluorine from sodium monofluorophosphate and from sodium fluoride, a synthetic precipitated silica containing up to about 1% by weight of alumina polishing agent and an opacifying agent.
Inventors
- 👤 Kenneth Harvey
- 👤 Stephen T. Connors
- 👤 Eric Baines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:39
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/24; A61K8/29
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
105 words
An opaque dental cream comprising 2-7% by weight water, 50-80% by weight of humectant, about 0.1-5% by weight of gelling agent, about 7-8% by weight of silica filler supplementing said gelling agent, about 1-5% by weight of surface active agent, 0.5-2% by weight of an opacifying agent selected from the group consisting of titanium dioxide and zinc oxide and mixtures thereof, a binary fluorine-providing system which provides about 750-1225 ppm fluoride from sodium monofluorophosphate and 50-1000 ppm fluorine from sodium fluoride and 15-20% by weight of a polishing agent consisting essentially of a sodium aluminosilicate synthetic precipitated silica containing about 1% of alumina interbonded therewith.
Claim 2
Dependent Claim
105 words
An opaque dental cream comprising 2-7% by weight water, 50-80% by weight of humectant, about 0.1-5% by weight of gelling agent, about 7-8% by weight of silica filler supplementing said gelling agent, about 1-5% by weight of surface active agent, 0.5-2% by weight of an opacifying agent selected from the group consisting of titanium dioxide and zinc oxide and mixtures thereof, a binary fluorine-providing system which provides about 750-1225 ppm fluoride from sodium monofluorophosphate and 50-1000 ppm fluorine from sodium fluoride and 15-20% by weight of a polishing agent consisting essentially of a sodium aluminosilicate synthetic precipitated silica containing about 1% of alumina interbonded therewith.
Claim 3
Dependent Claim
15 words
A dental cream as claimed in claim 1 wherein the opacifying agent is titanium dioxide.
Claim 4
Dependent Claim
16 words
A dental cream as claimed in claim 1 wherein the sodium fluoride provides 50-100 ppm fluorine.
Claim 5
Dependent Claim
16 words
A dental cream as claimed in claim 2 containing about 0.5-1% by weight of dicalcium phosphate.
Claim 6
Dependent Claim
22 words
A dental cream as claimed in claim 1 containing about 0.1-0.3% of pearlescent titanium dioxide coated mica flakes distributed as visible particles.
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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) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |