Patent US4307076A successfully refreshed from Google Patents.
US4307076A
Expired / Lapsed
US
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Toothpaste compositions
Assignee: Colgate Palmolive Co
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Filing: 1980-12-19
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Granted: 1981-12-22
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Expires: 2000-12-19
Abstract
Abstract A toothpaste composition comprising a vehicle containing about 45-80% by weight of liquid phase, comprising up to about 35% by weight of the toothpaste of sorbitol and at least about 25% by weight of the toothpaste of water and a solid phase including about 3-10% by weight of the toothpaste of gelling agent comprising at least about 3% by weight of the toothpaste of polyvinyl pyrrolidone as an agent to reduce drying and tube plugging.
Inventors
- 👤 Kenneth Harvey
- 👤 Stephen T. Connors
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:02
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/34; A61K8/345; A61K8/72; A61K8/81; A61K8/817; A61K8/8176
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
128 words
A tubed toothpaste composition comprising a vehicle containing about 45-80% by weight of liquid phase, consisting essentially of from about 15% up to about 35% by weight of the toothpaste of sorbitol and at least about 25% by weight of the toothpaste of water and a solid phase including about 3-10% by weight of the toothpaste of gelling agent wherein drying readily occurs and a hard plug forms at the cap end of a toothpaste tube particularly when the tube is permitted to remain open, typically within about 7 hours of being left open, making it very difficult to effectively extract the paste from the tube, the improvement comprising said toothpaste containing in said gelling agent at least about 3% by weight of the toothpaste of polyvinyl pyrrolidone.
Claim 2
Dependent Claim
128 words
A tubed toothpaste composition comprising a vehicle containing about 45-80% by weight of liquid phase, consisting essentially of from about 15% up to about 35% by weight of the toothpaste of sorbitol and at least about 25% by weight of the toothpaste of water and a solid phase including about 3-10% by weight of the toothpaste of gelling agent wherein drying readily occurs and a hard plug forms at the cap end of a toothpaste tube particularly when the tube is permitted to remain open, typically within about 7 hours of being left open, making it very difficult to effectively extract the paste from the tube, the improvement comprising said toothpaste containing in said gelling agent at least about 3% by weight of the toothpaste of polyvinyl pyrrolidone.
Claim 3
Dependent Claim
19 words
A toothpaste composition claimed in claim 1 wherein said sorbitol is present in amount of about 15-25% by weight.
Claim 4
Dependent Claim
19 words
A toothpaste composition claimed in claim 1 wherein said water is present in amount of about 25-50% by weight.
Claim 5
Dependent Claim
19 words
A toothpaste composition claimed in claim 2 wherein said water is present in amount of about 25-45% by weight.
Claim 6
Dependent Claim
21 words
A toothpaste composition claimed in claim 1, wherein about 15-50% by weight of a dentally acceptable water-insoluble polishing agent is present.
Claim 7
Dependent Claim
14 words
A toothpaste composition claimed in claim 5 wherein said polishing agent is sodium aluminosilicate.
Claim 8
Dependent Claim
17 words
A toothpaste composition claimed in claim 1 wherein about 3-6% by weight of polyvinyl pyrrolidone is present.
Claim 9
Dependent Claim
16 words
A toothpaste composition claimed in claim 1 wherein said gelling agent additionally comprises sodium carboxymethyl cellulose.
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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) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |