US4806340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticalculus oral composition
Assignee: Colgate Palmolive Co
•
Filing: 1986-03-20
•
Granted: 1989-02-21
•
Expires: 2006-03-20
Abstract
Abstract An oral dentifrice composition such as a toothpaste, dental gel, toothpowder, dental tablet or lozenge containing as anticalculus agent about 4.3% to about 7% of alkali metal pyrophosphates comprising at least 4.3% of tetrapotassium pyrophosphate alone or admixed with up to 2.7% of tetrasodium pyrophosphate, and as inhibitors against enzymatic hydrolysis of such agent in saliva, a fluoride and preferably up to about 3% of a synthetic anionic polymeric polycarboxylate, and use of such composition in a program of oral hygiene and/or for inhibiting dental calculus.
Inventors
- 👤 Abdul Gaffar
- 👤 Thomas G. Polefka
- 👤 Robert J. Ferlauto, Jr.
- 👤 Rosemarie M. Crisafulli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:51
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/30; A61K8/33; A61K8/39; A61K8/20; A61K8/21; A61K8/24; A61K8/25; A61K8/72; A61K8/81; A61K8/8164; A61K8/90; A61Q; A61Q11/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
126 words
In a method of inhibitng dental calculus by applying to the teeth a dentifrice composition in the form of a toothpaste, dental gel, toothpowder, dental tablet or lozenge and containing in an orally acceptable vehicle tetrapotassium pyrophosphate or mixtures of tetrapotassiuim and tetrasodium pyrophosphates as essential anticalculus agents, and an amount of a fluoride ion source sufficient to supply about 25 ppm to about 5,000 ppm of fluoride ion, the improvement whereby salivary hydrolysis of pyrophosphate by alkaline phosphatase is inhibited consisting essentially of including in said dentifrice composition an effective inhibiting amount therefor within the range of about 0.05 to about 3 wt. % of a syntehtic anionic polymeric polycarboxylate, said dentifrice composition being substantially free from solid gritty particles composed of undissolved tetrasodium pyrophosphate.
Claim 2
Dependent Claim
126 words
In a method of inhibitng dental calculus by applying to the teeth a dentifrice composition in the form of a toothpaste, dental gel, toothpowder, dental tablet or lozenge and containing in an orally acceptable vehicle tetrapotassium pyrophosphate or mixtures of tetrapotassiuim and tetrasodium pyrophosphates as essential anticalculus agents, and an amount of a fluoride ion source sufficient to supply about 25 ppm to about 5,000 ppm of fluoride ion, the improvement whereby salivary hydrolysis of pyrophosphate by alkaline phosphatase is inhibited consisting essentially of including in said dentifrice composition an effective inhibiting amount therefor within the range of about 0.05 to about 3 wt. % of a syntehtic anionic polymeric polycarboxylate, said dentifrice composition being substantially free from solid gritty particles composed of undissolved tetrasodium pyrophosphate.
Claim 3
Dependent Claim
44 words
A method according to claim 1 wherein said composition contains about 4.3 to about 7 wt. % of alkali metal pyrophosphate comprising at least about 4.3 wt. % of tetrapotassium pyrophosphate alone or admixed with up to about 2.7 wt. % of tetrasodium pyrophosphate.
Claim 4
Dependent Claim
23 words
A method according to claim 2 wherein said composition cotains tetrapotassium and tetrasoidum pyrophosphates in an approximate weight ratio of 4.3:2.7 to 6:1.
Claim 5
Dependent Claim
13 words
A method according to claim 3 wherein said approximate weight ratio is 4.5:1.5.
Claim 6
Independent Claim
25 words
A method according to any one of claims 1 to 3 wherein said polymeric olycarboxylate has a molecular weight of about 1,000 to about 1,000,000.
Claim 7
Dependent Claim
16 words
A method according to claim 5 wherein said molecular weight is about 30,000 to about 1,000,000.
Claim 8
Dependent Claim
16 words
A method according to claim 5 wherein said molecular weight is about 50,000 to about 300,000.
Claim 9
Independent Claim
32 words
A method according to any one of claims 1 to 7 wherein said polymeric polycarboxylate is a 1:4 to 4:1 copolymer of maleic anhydride or acid with another polymerizable ethylenically unsaturated monomer.
Claim 10
Dependent Claim
13 words
A method according to claim 8 wherein said monomer is methyl vinyl ether.
Claim 11
Dependent Claim
17 words
A method according to claim 9 wherein the said copolymer has a molecular weight of about 70,000.
Claim 12
Independent Claim
22 words
A method according to any of claims 1 to 10 wherein said composition has a pH of about 4.5 to about 10.
Claim 13
Independent Claim
20 words
A method according to any of claims 1 to 11 wherein said fluoride source comprises sodium fluoride or sodium monofluorophosphate.
Claim 14
Independent Claim
28 words
A method according to any one of claims 1 to 12 wherein said composition is in the form of a toothpaste further containing a dentally acceptable polishing agent.
Claim 15
Independent Claim
29 words
A method according to any one of claims 1 to 12 wherein said composition is in the form of a dental gel further containing a dentally acceptable polishing agent.
Claim 16
Independent Claim
21 words
A method according to any one of claims 1 to 12 wherein said composition is in the form of a lozenge.
References Cited (Backward Citations)
US3137632A
Cited
US2772203A
Cited
US2941926A
Cited
US3429963A
Cited
US3927202A
Cited
US3894147A
Cited
US3976765A
Cited
US4314990A
Cited
US4314990B1
Cited
US4515772A
Cited
US4590066A
Cited
US4684518A
Cited
US4627977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |