Patent US4465661A successfully refreshed from Google Patents.
US4465661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oral product having improved taste
Assignee: BASF Corp
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Filing: 1983-02-16
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Granted: 1984-08-14
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Expires: 2003-02-16
Abstract
Abstract Oral products such as mouthwashes and dentifrices are disclosed which utilize a polyoxyethylene derivative of a fatty alcohol having 15 to 20 carbon atoms wherein the polyoxyethylene chains are responsible for about 50 to about 90 percent of the molecular weight of the surfactant. Unexpectedly, the nonionic surfactants solubilize peppermint oil and other flavorants at ambient temperatures and below so that the mouthwash compositions of the invention remain clear and haze free. The visually clear dental creams of the invention also maintain their clarity at ambient temperatures and below. Both mouthwash and dental creams of the invention are free of the usual bitter surfactant taste.
Inventors
- 👤 Irving R. Schmolka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:53
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/86; A61K8/92; A61K8/922; A61Q; A61Q11/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
122 words
An aqueous mouthwash free from unpleasant, bitter surfactant taste which is stable, visually clear, and haze free at ambient temperatures consisting essentially of about 60 to about 95 percent by weight of water, about 0.05 to about 3.0 percent by weight of peppermint oil, about 0.1 to about 5.0 percent by weight of a nonionic surfactant consisting essentially of a polyoxyethylene derivative of the fatty alcohol having about 15 to about 20 carbon atoms wherein about 50 to about 90 percent by weight of said nonionic surfactant is derived from ethylene oxide and from about 5 to about 20 percent by weight of ethanol or isopropanol and the weight ratio of said nonionic surfactant to said peppermint oil is greater than 1.5:1.
Claim 2
Dependent Claim
122 words
An aqueous mouthwash free from unpleasant, bitter surfactant taste which is stable, visually clear, and haze free at ambient temperatures consisting essentially of about 60 to about 95 percent by weight of water, about 0.05 to about 3.0 percent by weight of peppermint oil, about 0.1 to about 5.0 percent by weight of a nonionic surfactant consisting essentially of a polyoxyethylene derivative of the fatty alcohol having about 15 to about 20 carbon atoms wherein about 50 to about 90 percent by weight of said nonionic surfactant is derived from ethylene oxide and from about 5 to about 20 percent by weight of ethanol or isopropanol and the weight ratio of said nonionic surfactant to said peppermint oil is greater than 1.5:1.
Claim 3
Dependent Claim
20 words
A mouthwash according to claim 1 wherein the weight ratio of said surfactant to said peppermint oil is about 10:1.
Claim 4
Dependent Claim
31 words
A mouthwash according to claim 1 further including a humectant selected from the group consisting of glycerine, sorbitol and propylene glycol in an amount up to about 12 percent by weight.
Claim 5
Dependent Claim
15 words
The mouthwash of claim 3 including glycerinein an amount of about 10 percent by weight.
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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) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |