US4165368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental prophylactic paste
Assignee: Colgate Palmolive Co
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Filing: 1978-12-11
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Granted: 1979-08-21
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Expires: 1998-12-11
Abstract
Abstract A dental prophylactic paste comprising an abrasive, a humectant, gelatin alone or in combination with silica gel or a water soluble silicate and optional flavoring and preservative ingredients having a viscosity in the range of 1200-150,000 centipoises at about 30°-40° C. which possesses improved flowability by which the paste can be poured through a nozzle under low pressure into individual containers as well as improved non-spatterability and cleaning efficiency in use by the dentist.
Inventors
- 👤 Maria C. Gaffar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:29
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/96; A61K8/965; A61K8/30; A61K8/33; A61K8/36; A61K8/362; A61K8/64; A61K8/65; A61Q; A61Q11/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
76 words
A dental prophylactic paste which is substantially non-spattering and has improved flowability through a nozzle under low pressure comprising an abrasive, a humectant and gelatin, the abrasive being present in an amount by weight of about 30-80% and the gelatin being present in an amount by weight of about 0.01 to 10.0%, which is sufficient to impart to said composition a viscosity of between 1200 and 150,000 centipoises at a temperature between 30° and 40° C.
Claim 2
Dependent Claim
76 words
A dental prophylactic paste which is substantially non-spattering and has improved flowability through a nozzle under low pressure comprising an abrasive, a humectant and gelatin, the abrasive being present in an amount by weight of about 30-80% and the gelatin being present in an amount by weight of about 0.01 to 10.0%, which is sufficient to impart to said composition a viscosity of between 1200 and 150,000 centipoises at a temperature between 30° and 40° C.
Claim 3
Dependent Claim
21 words
The dental prophylactic paste of claim 1 wherein the abrasive content is about 40-60% and the gelatin content is about 1-5%.
Claim 4
Dependent Claim
20 words
The dental prophylactic paste of claim 1 wherein the abrasive is a mineral compound and the humectant is a glycol.
Claim 5
Dependent Claim
17 words
The dental prophylactic paste of claim 1 wherein the abrasive is pumice and the humectant is glycerol.
Claim 6
Dependent Claim
29 words
The dental prophylactic paste of claim 1 and a fluoride compound present in an amount sufficient to provide a fluoride ion content of about 0.1 to 5.0% by weight.
Claim 7
Dependent Claim
20 words
The dental prophylactic paste of claim 1 and an alkali metal silicate in an amount of about 1-10% by weight.
Claim 8
Dependent Claim
18 words
The dental prophylactic paste of claim 1 and silica gel in an amount of about 1-10% by weight.
Claim 9
Dependent Claim
14 words
The dental prophylactic paste of claim 5 wherein the fluoride compound is ammonium silicofluoride.
Claim 10
Dependent Claim
19 words
The dental prophylactic paste of claim 1 and a thickener in an amount of 0.1 to 0.5% by weight.
Claim 11
Dependent Claim
82 words
A non-aqueous dental prophylactic paste which is substantially non-spatterable and has improved flowability through a nozzle under low pressure consisting essentially of an abrasive, a humectant, gelatin, a water soluble silicate and an acid anhydride, the abrasive being present in an amount by weight of about 30-80% and the gelatin in an amount of about 0.01 to 10.0%, which is sufficient to impart to said composition a viscosity of between 1200 to 150,000 centipoises at a temperature between 30° and 40° C.
Claim 12
Dependent Claim
82 words
A non-aqueous dental prophylactic paste which is substantially non-spatterable and has improved flowability through a nozzle under low pressure consisting essentially of an abrasive, a humectant, gelatin, a water soluble silicate and an acid anhydride, the abrasive being present in an amount by weight of about 30-80% and the gelatin in an amount of about 0.01 to 10.0%, which is sufficient to impart to said composition a viscosity of between 1200 to 150,000 centipoises at a temperature between 30° and 40° C.
Claim 13
Dependent Claim
35 words
The dental prophylactic paste of claim 10 wherein an alkali metal silicate is present in an amount of about 1-10% by weight and the anhydride is present in an amount of about 1-10% by weight.
Claim 14
Dependent Claim
43 words
The dental prophylactic paste in which the abrasive is present in about 40-60% by weight, the gelatin is present in about 1-5% by weight, sodium metasilicate is present in about 1-10% by weight and succinic anhydride is present in about 1-10% by weight.
Claim 15
Dependent Claim
43 words
The dental prophylactic paste in which the abrasive is present in about 40-60% by weight, the gelatin is present in about 1-5% by weight, sodium metasilicate is present in about 1-10% by weight and succinic anhydride is present in about 1-10% by weight.
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) | 1982-08-20 | 1983-02-19 | 1983-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-20 | 1987-02-19 | 1987-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-20 | 1991-02-19 | 1991-08-21 | $7700.00 | Window Closed / Lapsed |