US4547361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing of cinnamic aldehyde-containing flavors with propylene glycol and dipropylene glycol
Assignee: Colgate Palmolive Co
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Filing: 1984-02-10
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Granted: 1985-10-15
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Expires: 2004-02-10
Abstract
Abstract Dentifrice formulations having improved stability against discoloration upon aging comprising an unsaturated aldehyde flavoring agent selected from the group consisting of cinnamic aldehyde and citral and an effective amount in excess of 5% and preferably about 10-45% of a color stabilizer selected from the group consisting of propylene glycol, dipropylene glycol and mixtures thereof, in a dental vehicle free of oxidizing agents such as peracids and salts thereof and maintained at a pH below 8.5 and preferably acid to slightly alkaline (about 5-7.5).
Inventors
- 👤 Robert J. Steltenkamp
- 👤 Miriam L. Douglass
- 👤 Gerard E. Natarelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:55
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/31; A61K8/33; A61K8/34; A61K8/345; A61K2800/00; A61K2800/40; A61K2800/52
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
79 words
A white dentifrice formulation having improved stability against yellowing discoloration upon aging, comprising about 0.1-1% by weight of an unsaturated aldehyde-containing flavorant selected from the group consisting of cinnamic aldehyde and citral, which is subject to discoloration with aging, and an effective amount in excess of 5% by weight of propylene glycol or dipropylene glycol to impart color stability against aging, in a dental vehicle free of oxidizing agents and having a slightly acid to alkaline pH below 8.5.
Claim 2
Dependent Claim
79 words
A white dentifrice formulation having improved stability against yellowing discoloration upon aging, comprising about 0.1-1% by weight of an unsaturated aldehyde-containing flavorant selected from the group consisting of cinnamic aldehyde and citral, which is subject to discoloration with aging, and an effective amount in excess of 5% by weight of propylene glycol or dipropylene glycol to impart color stability against aging, in a dental vehicle free of oxidizing agents and having a slightly acid to alkaline pH below 8.5.
Claim 3
Dependent Claim
18 words
The dentifrice, according to claim 1, wherein the discoloration inhibitor constitutes about 10-45% by weight of the formulation.
Claim 4
Dependent Claim
15 words
The dentifrice according to claim 2 wherein the dental vehicle is an anhydrous dental cream.
Claim 5
Dependent Claim
15 words
A dentifrice according to claim 2 wherein the dental vehicle is an aqueous dental cream.
Claim 6
Dependent Claim
17 words
The dentifrice according to claim 2, wherein the dentifrice has a pH of about 5 to 7.5.
Claim 7
Dependent Claim
27 words
The dentifrice according to claim 5, wherein the dentifrice is a white color stabilized dental cream, containing about 20-70% by weight of a water insoluble polishing agent.
Claim 8
Dependent Claim
16 words
The dentifrice according to claim 6, which additionally contains about 0.5-1% by weight of titanium dioxide.
Claim 9
Dependent Claim
24 words
The dentifrice according to claim 5, wherein the dentifrice is a white color stabilized mouthwash, containing a liquid content of about 90-98% by weight.
Claim 10
Dependent Claim
19 words
The dental cream according to claim 6 containing 1% cinnamic aldehyde flavor and 22% propylene glycol as discoloration inhibitor.
Claim 11
Dependent Claim
19 words
The dental cream according to claim 6 containing 1% cinnamic aldehyde flavor and 35% dipropylene glycol as discoloration inhibitor.
Claim 12
Dependent Claim
17 words
The anhydrous dental cream according to claim 3 containing 1% cinnamic aldehyde flavor and 43% propylene glycol.
Claim 13
Dependent Claim
21 words
The anhydrous dental cream according to claim 3, containing 1% cinnamic aldehyde flavor and 22% propylene glycol and 1% titanium dioxide.
Claim 14
Dependent Claim
18 words
The mouthwash according to claim 8, which is anhydrous, and contains 10-15% propylene glycol and 0.1-0.5% cinnamic aldehyde.
Claim 15
Dependent Claim
19 words
The mouthwash according to claim 8 containing 0.1-0.5% by weight of a flavor composition containing cinnamic aldehyde or citral.
Claim 16
Dependent Claim
20 words
A dental cream according to claim 7 containing 0.1-1% by weight of a flavor composition containing cinnamic aldehyde or citral.
Claim 17
Dependent Claim
10 words
A dentifrice according to claim 1 containing about 0.05-5% surfactant.
Claim 18
Dependent Claim
25 words
A dentifrice according to claim 1, in the form of a dental cream containing a liquid content of about 20-75% by weight of the composition.
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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) | 1988-10-14 | 1989-04-15 | 1989-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-14 | 1993-04-15 | 1993-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-14 | 1997-04-15 | 1997-10-15 | $7700.00 | Window Closed / Lapsed |