US4241049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable dentifrice
Assignee: Colgate Palmolive Co
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Filing: 1975-10-10
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Granted: 1980-12-23
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Expires: 1995-10-10
Abstract
Abstract Dentifrice containing phosphate ion and flavoring oil and 1,6-di-(p-chlorophenyl biguanidohexane) and water soluble alkaline earth metal salt of a strong acid to stabilize the dentifrice against separation. Calcium and magnesium chlorides are typical stabilizers.
Inventors
- 👤 Daniel Colodney
- 👤 James Norfleet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:30
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K8/30; A61K8/40; A61K8/43
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
96 words
A process of preventing the separation into liquid and solid phases of an antibacterial dentifrice comprising forming the antibacterial dentifrice by adding to a single phase vehicle mass which comprises solids and liquids proportioned to cream or gel consistency and which contains about 0.01-5% by weight of flavoring oil and about 0.015-2% by weight of phosphate ion, as an antibacterial agent, 1,6-di-(p-chlorophenyl biguanido) hexane, in amount to provide about 0.01-5% by weight of the free base and about 0.25-10% by weight of a water-soluble alkaline earth metal salt of a strong acid to prevent phase separation.
Claim 2
Dependent Claim
96 words
A process of preventing the separation into liquid and solid phases of an antibacterial dentifrice comprising forming the antibacterial dentifrice by adding to a single phase vehicle mass which comprises solids and liquids proportioned to cream or gel consistency and which contains about 0.01-5% by weight of flavoring oil and about 0.015-2% by weight of phosphate ion, as an antibacterial agent, 1,6-di-(p-chlorophenyl biguanido) hexane, in amount to provide about 0.01-5% by weight of the free base and about 0.25-10% by weight of a water-soluble alkaline earth metal salt of a strong acid to prevent phase separation.
Claim 3
Dependent Claim
35 words
The process of preventing separation into liquid and solid phases of an antibacterial dentifrice as claimed in claim 1 wherein said water-soluble alkaline earth metal salt is present in amount of about 0,25-0.50% by weight.
Claim 4
Dependent Claim
42 words
The process of preventing separation into liquid and solid phases of an antibacterial dentifrice as claimed in claim 1 wherein said water-soluble alkaline earth metal salt is selected from the group consisting of water-soluble halides, nitrates and sulfates of magnesium and calcium.
Claim 5
Dependent Claim
29 words
The process of preventing separation into liquid and solid phases of an antibacterial dentifrice as claimed in claim 3 wherein said water-soluble alkaline earth metal salt is calcium chloride.
Claim 6
Dependent Claim
29 words
The process of preventing separation into liquid and solid phases of an antibacterial dentifrice as claimed in claim 3 wherein said water-soluble alkaline earth metal salt is magnesium chloride.
Claim 7
Dependent Claim
42 words
The process of preventing separation into liquid and solid phases of an antibacterial dentifrice as claimed in claim 1 wherein said vehicle solids include gelling agent and water-insoluble, dentally acceptable polishing agent and said vehicle liquids include water, humectant and flavoring oil.
Claim 8
Dependent Claim
30 words
The process of preventing separation into liquid and solid phases of an antibacterial dentifrice as claimed in claim 6 wherein said water-insoluble, dentally acceptable polishing agent is a phosphate salt.
Claim 9
Dependent Claim
28 words
The process of preventing separation into liquid and solid phases of an antibacterial dentifrice as claimed in claim 1 wherein sodium N-lauroyl sarcosinate is present in said vehicle.
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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |