Patent US4869898A successfully refreshed from Google Patents.
US4869898A
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Anticalculus oral composition
Assignee: Colgate Palmolive Co
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Filing: 1988-01-25
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Granted: 1989-09-26
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Expires: 2008-01-25
Abstract
Abstract An oral composition such as toothpaste (including gel or cream), mouthwash, lozenge, chewing gum or tooth powder containing a calculus-inhibiting amount of a linear molecularly dehydrated polyphosphate salt and, to inhibit enzymatic hydrolysis of said polyphosphate salt in saliva, a combination of a fluoride ion-providing source and a synthetic linear polymeric polycarboxylate.
Inventors
- 👤 Abdul Gaffar
- 👤 Thomas G. Polefka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:29
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8164; A61K8/19; A61K8/24; A61Q; A61Q11/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
113 words
In an anticalculus dentifrice composition containing in an orally acceptable vehicle one or a mixture of water soluble alkali metal pyrophosphates as essential anticalculus agents, a dentally acceptable polishing agent, and an amount of a fluoride ion source sufficient to supply about 25 ppm to about 2,000 ppm of fluoride ions, the improvement wherein salivary hydrolysis of P--O--P bonds in said pyrophosphates by phosphatase enzymes is inhibited consisting essentially of including in said composition an effective inhibiting amount therefor within the range of about 0.05% to about 3% of a water soluble alkali metal or ammonium synthetic anionic linear polymeric polycarboxylate salt, said composition when applied to teeth being effective to inhibit calculus.
Claim 2
Dependent Claim
113 words
In an anticalculus dentifrice composition containing in an orally acceptable vehicle one or a mixture of water soluble alkali metal pyrophosphates as essential anticalculus agents, a dentally acceptable polishing agent, and an amount of a fluoride ion source sufficient to supply about 25 ppm to about 2,000 ppm of fluoride ions, the improvement wherein salivary hydrolysis of P--O--P bonds in said pyrophosphates by phosphatase enzymes is inhibited consisting essentially of including in said composition an effective inhibiting amount therefor within the range of about 0.05% to about 3% of a water soluble alkali metal or ammonium synthetic anionic linear polymeric polycarboxylate salt, said composition when applied to teeth being effective to inhibit calculus.
Claim 3
Dependent Claim
14 words
A composition according to claim 1 wherein said fluoride ion source comprises sodium fluoride.
Claim 4
Dependent Claim
23 words
A composition according to claim 2 wherein said linear polymeric polycarboxylate comprises a copolymer of vinyl methyl ether and maleic acid or anhydride.
Claim 5
Dependent Claim
19 words
A composition according to claim 3 wherein said copolymer has a molecular weight of about 30,000 to about 500,000.
Claim 6
Dependent Claim
15 words
A composition according to claim 3 wherein said polyphosphate salt consists essentially of tetraalkalimetal pyrophosphates.
Claim 7
Dependent Claim
24 words
A method of inhibiting the formation of dental calculus comprisnig applying to teeth a calculus-inhibiting amount of a composition as defined in claim 1.
Claim 8
Dependent Claim
22 words
A composition according to claim 1 wherein said alkali metal in said pyrophosphates is independently sodium or potassium or a mixture thereof.
Claim 9
Dependent Claim
16 words
A composition according to claim 3 wherein said copolymer has a molecular weight of about 70,000.
Claim 10
Dependent Claim
17 words
A composition according to claim 1 containing about 0.005 to about 1.0% of said fluoride ion source.
Claim 11
Dependent Claim
87 words
A dentifrice composition according to claim 1 having a pH of about 4.5 to about 9 and made with, approximately by weight, (a) 2 to 7% of water soluble tetraalkali metal pyrophosphate salts, (b) 0.005 to 1.0% of fluoride-providing compound, (c) a water soluble alkali metal or ammonium synthetic anionic linear polymeric polycarboxylate salt having a molecular weight of about 1,000 to about 1,000,000, and (d) an orally acceptable vehicle containing a dentally acceptable polishing agent, said composition when applied to teeth being effective to inhibit calculus.
Claim 12
Dependent Claim
55 words
A dentifrice composition according to claim 10 wherein component (a) consists essentially of a mixture of different such pyrophosphate salts, component (b) comprises sodium fluoride, and component (c) comprises a sodium salt of a hydrolyzed copolymer of vinyl methyl ether and maleic acid or anhydride having a molecular weight of about 30,000 to about 500,000.
Claim 13
Dependent Claim
17 words
A dentifrice composition according to claim 11 wherein said copolymer has a molecular weight of about 70,000.
Claim 14
Dependent Claim
13 words
A dentifrice composition according to claim 11 containing about 6% of component (a).
Claim 15
Dependent Claim
35 words
A dentifrice composition according to claim 1 having a pH of about 4.5 to abuot 9 and containing about 0.1 to about 7% of one or a mixture of water soluble alkali metal pyrophosphate salts.
Claim 16
Dependent Claim
20 words
A dentrifice composition according to claim 14 wherein said polycarboxylate has a molecular weight of about 1,000 to about 1,000,000.
Claim 17
Dependent Claim
20 words
A dentrifice composition according to claim 1 wherein said polycarboxylate has a molecular weight of about 1,000 to about 1,000,000.
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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) | 1992-09-25 | 1993-03-27 | 1993-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-25 | 1997-03-27 | 1997-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-25 | 2001-03-27 | 2001-09-26 | $7700.00 | Window Closed / Lapsed |