US4590065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable flavor-containing dentifrice
Assignee: Colgate Palmolive Co
•
Filing: 1985-04-18
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Granted: 1986-05-20
•
Expires: 2005-04-18
Abstract
Abstract A dentifrice composition that reduces the migration/absorption of flavor into plastic packaging materials, containing a flavor oil in combination with about 5.0%-50.0% and preferably 12.0% by weight of the total flavor oils of polyvinyl pyrrolidone (PVP), dispersed in a dental vehicle. The dentifrice composition may be in the form of a paste, cream or gel. It is essential that the flavor oil and PVP be premixed prior to its addition to the dentifrice composition, preferably as a final step in its formulation.
Inventors
- 👤 Stanley E. Piechota, Jr.
- 👤 Dorinda A. Sparacio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:18
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/92; A61K8/922; A61K8/72; A61K8/81; A61K8/817; A61K8/8176; A61Q; A61Q11/00; A61K2800/00; A61K2800/80; A61K2800/87
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
73 words
A plastic packaged toothpaste or gel dentifrice composition free of free flavor oil tending to migrate to, and be absorbed by plastic packaging and thereby having improved stability against flavor loss by migration and abosrption of free flavor oil into plastic package components comprising 0.01-5% by weight of a flavor oil colloidally bound with about 5.0% to 50.0% by weight of the total flavor oils of polyvinylpyrrolidone, dispersed in a flavor-free dental vehicle.
Claim 2
Dependent Claim
73 words
A plastic packaged toothpaste or gel dentifrice composition free of free flavor oil tending to migrate to, and be absorbed by plastic packaging and thereby having improved stability against flavor loss by migration and abosrption of free flavor oil into plastic package components comprising 0.01-5% by weight of a flavor oil colloidally bound with about 5.0% to 50.0% by weight of the total flavor oils of polyvinylpyrrolidone, dispersed in a flavor-free dental vehicle.
Claim 3
Dependent Claim
18 words
The dentifrice according to claim 1, wherein the flavor oil constitutes about 0.5-3.0% by weight of the composition.
Claim 4
Dependent Claim
19 words
The dentifrice according to claim 1, wherein the polyvinylpyrrolidone has an average molecular weight of 5,000 to approximately 1,000,000.
Claim 5
Dependent Claim
20 words
The dentifrice according to claim 1, wherein the polyvinylpyrrolidone has an average molecular weight of about 60,000 to approximately 1,000,000.
Claim 6
Dependent Claim
18 words
The dentifrice according to claim 4, wherein the polyvinylpyrrolidone constitutes about 12.0% by weight of the flavor oils.
Claim 7
Dependent Claim
25 words
The dentifrice according to claim 5, which is in the form of a toothpaste containing about 15-75% by weight of a water insoluble polishing agent.
Claim 8
Dependent Claim
26 words
The dentifrice according to claim 5, which is in the form of a dental gel containing about 15-75% by weight of water insoluble silica polishing agent.
Claim 9
Dependent Claim
10 words
The dentifrice according to claim 1, containing about 0.5-5% surfactant.
Claim 10
Dependent Claim
18 words
The dentifrice according to claim 8, containing a liquid content of about 20-75% by weight of the composition.
Claim 11
Dependent Claim
14 words
The toothpaste according to claim 6, wherein the polishing agent is dicalcium phosphate dihydrate.
Claim 12
Dependent Claim
15 words
The dentifrice according to claim 7 wherein the polishing agent is silica containing combined alumina.
Claim 13
Dependent Claim
22 words
The dentifrice according to claim 9, containing about 0.1-5% by weight of a fluorine-containing compound capable of releasing fluorine ions in water.
Claim 14
Dependent Claim
21 words
The toothpaste according to claim 10, wherein the flavor oil comprises a mixture of oil of peppermint and oil of spearmint.
Claim 15
Dependent Claim
22 words
The dental gel according to claim 11, wherein the flavor oil is a mixture of oil of peppermint and oil of spearmint.
Claim 16
Dependent Claim
43 words
A method of preparing the dentifrice of claim 1, which comprises admixing the flavor oil and the polyvinylpyrrolidone to form a colloidal premix, followed by admixing said premix with the other formula components, and tubing or packaging the final mixture in plastic material.
Claim 17
Dependent Claim
47 words
A plastic packaged dentifrice composition having improved stability against flavor loss into plastic package components comprising a premix of flavor oil colloidally bound with about 5-50% by weight of the total flavor oils of polyvinylpyrrolidone, dispersed in a dental vehicle containing a water insoluble dental polishing agent.
Claim 18
Dependent Claim
47 words
A plastic packaged dentifrice composition having improved stability against flavor loss into plastic package components comprising a premix of flavor oil colloidally bound with about 5-50% by weight of the total flavor oils of polyvinylpyrrolidone, dispersed in a dental vehicle containing a water insoluble dental polishing agent.
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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 |