US4889712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticalculus oral composition
Assignee: Colgate Palmolive Co
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Filing: 1988-03-18
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Granted: 1989-12-26
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Expires: 2008-03-18
Abstract
Abstract In an anticalculus oral composition containing in an orally acceptable vehicle one or a mixture of water soluble linear molecularly dehydrated alkali metal or ammonium polyphosphate salts as essential anticalculus agent, an amount of a fluoride ion source sufficient to supply about 25 ppm to about 2,000 ppm of fluoride ions, and one or a mixture of water soluble alkali metal or ammonium synthetic anionic polymeric polycarboxlate salts, the improvement comprising employing in said composition a polyphosphate ion:polycarboxylate salt weight ratio ranging from about 0.3:1 to about 2.5:1.
Inventors
- 👤 Abdul Gaffar
- 👤 Shek-Hong H. Lau
- 👤 John Afflito
- 👤 Arline M. Nykvist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:23
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/02; A61K8/0216; A61K8/24; A61K8/72; A61K8/81; A61K8/8164; A61K8/90; A61Q; A61Q11/00; A61K2800/00; A61K2800/80; A61K2800/92
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
88 words
In an anticalculus oral composition containing in an orally acceptable vehicle one or a mixture of water soluble linear molecularly dehydrated alkali metal or ammonium polyphosphate salts as essential anticalculus agent, an amount of a fluoride ion source sufficient to supply about 25 ppm to about 2,000 ppm of fluoride ions, and one or a mixture of water soluble alkali metal or ammonium synthetic anionic polymeric polycarboxylate salts, the improvement comprising employing in said composition a polyphosphate ion:polycarboxylate salt weight ratio ranging from about 0.3:1 to about 2.5:1.
Claim 2
Dependent Claim
88 words
In an anticalculus oral composition containing in an orally acceptable vehicle one or a mixture of water soluble linear molecularly dehydrated alkali metal or ammonium polyphosphate salts as essential anticalculus agent, an amount of a fluoride ion source sufficient to supply about 25 ppm to about 2,000 ppm of fluoride ions, and one or a mixture of water soluble alkali metal or ammonium synthetic anionic polymeric polycarboxylate salts, the improvement comprising employing in said composition a polyphosphate ion:polycarboxylate salt weight ratio ranging from about 0.3:1 to about 2.5:1.
Claim 3
Dependent Claim
14 words
A composition according to claim 1 wherein said fluoride ion source comprises sodium fluoride.
Claim 4
Dependent Claim
25 words
A composition according to any one of claims 1 or 2 wherein said polymeric polycarboxylate has a molecular weight of about 1,000 to about 1,000,000.
Claim 5
Dependent Claim
20 words
A composition according to any one of claims 1, 2 or 3 wherein said polymeric polycarboxylate comprises a carboxyvinyl polymer.
Claim 6
Dependent Claim
28 words
A composition according to any one of claims 1, 2 or 3 wherein said polymeric polycarboxylate comprises a copolymer of vinyl methyl ether and maleic acid or anhydride.
Claim 7
Dependent Claim
18 words
A composition according to claim 5 wherein said copolymer has a molecular weight of about 30,000 to 500,000.
Claim 8
Dependent Claim
16 words
A composition according to claim 5 wherein said copolymer has a molecular weight of about 70,000.
Claim 9
Dependent Claim
26 words
A composition accordng to any one of claims 1 to 7 containing about 0.1 to about 7 wt. percent of said polyphosphate salt or mixture thereof.
Claim 10
Dependent Claim
18 words
A composition according to any one of claims 1 to 8 wherein said polyphosphate salt comprises a pyrophosphate.
Claim 11
Dependent Claim
12 words
A composition according to claim 9 wherein said pyrophosphate comprises tetrasodium pyrophosphate.
Claim 12
Dependent Claim
20 words
A composition according to any one of claims 9 or 10 containing about 0.1 to below 3% of pyrophosphate ion.
Claim 13
Dependent Claim
19 words
A composition according to any one of claims 9 or 10 containing about 0.1 to 1.3% of pyrophosphate ion.
Claim 14
Dependent Claim
26 words
A composition according to any one of claims 1 to 12 wherein the weight ratio of polyphosphate ion:polycarboxylate salt ranges from about 0.8:1 to about 1.2:1.
Claim 15
Dependent Claim
30 words
A composition according to any one of claims 1 to 13 in the form of a toothpaste or gel further containing a dentally acceptable polishing agent and a gelling agent.
Claim 16
Dependent Claim
22 words
A composition according to any one of claims 1 to 13 in the form of a mouthwash containing an aqueous alcoholic vehicle.
Claim 17
Dependent Claim
17 words
A composition accordng to any one of claims 1 to 13 in the form of a lozenge.
Claim 18
Dependent Claim
17 words
A composition according to any one of claims 1 to 13 in the form of chewing gum.
Claim 19
Dependent Claim
20 words
A composition according to any one of claims 1 to 17 having a pH of about 4.5 to about 10.
Claim 20
Independent Claim
29 words
A method of inhibiting dental calculus comprising applying to dental surfaces in the oral cavity a calculus-inhibiting amount of a composition as defined in any one of claims 1-18.
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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) | 1992-12-25 | 1993-06-26 | 1993-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-25 | 1997-06-26 | 1997-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-25 | 2001-06-26 | 2001-12-26 | $7700.00 | Window Closed / Lapsed |