US4921692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anticalculus oral composition
Assignee: Colgate Palmolive Co
•
Filing: 1989-02-08
•
Granted: 1990-05-01
•
Expires: 2009-02-08
Abstract
Abstract An oral composition such as a 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 07:35
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/24; A61K8/72; A61K8/81; A61K8/8164; A61Q; A61Q11/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
100 words
In an anticalculus oral composition containing in an orally acceptable vehicle one or a mixture of water soluble alkali metal hexametaphosphate salts as essential anticalculus agents, 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 hexametaphosphate salt 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 wt. % of a water soluble alkali metal or ammonium synthetic anionic linear polymeric polycarboxylate.
Claim 2
Dependent Claim
100 words
In an anticalculus oral composition containing in an orally acceptable vehicle one or a mixture of water soluble alkali metal hexametaphosphate salts as essential anticalculus agents, 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 hexametaphosphate salt 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 wt. % of a water soluble alkali metal or ammonium synthetic anionic linear polymeric polycarboxylate.
Claim 3
Dependent Claim
21 words
A composition according to claim 1 wherein said alkali metal in said hexametaphosphates is sodium or potassium or a mixture thereof.
Claim 4
Dependent Claim
11 words
A composition according to any of claim 2 containing sodium hexametaphosphate.
Claim 5
Dependent Claim
22 words
A composition according to any one of claims 1 to 3 containing about 0.1 to about 7 wt. % of said hexametaphosphates.
Claim 6
Dependent Claim
22 words
A composition according to any one of claims 1 to 3 containing about 2 to about 7 wt. % of said hexametaphosphates.
Claim 7
Dependent Claim
25 words
A composition according to any one of claims 1 to 5 wherein said polymeric polycarboxylate has a molecular weight of about 1,000 to about 1,000,000.
Claim 8
Dependent Claim
29 words
A composition according to any one of claims 1 to 6 wherein said polymeric polycarboxylate comprises a copolymer of maleic anhydride or acid with another polymerizable ethylenically unsaturated monomer.
Claim 9
Dependent Claim
13 words
A composition according to claim 7 wherein said monomer is methyl vinyl ether.
Claim 10
Dependent Claim
23 words
A composition according to any one of claims 7 or 8 wherein said copolymer has a molecular weight of about 30,000 to 1,000,000.
Claim 11
Dependent Claim
16 words
A composition according to claim 9 wherein said molecular weight is about 30,000 to about 500,000.
Claim 12
Dependent Claim
13 words
A composition according to claim 9 wherein said molecular weight is about 70,000.
Claim 13
Dependent Claim
30 words
A composition according to any one of claims 1 to 11 wherein said polymeric polycarboxylate comprises a 1:4 to 4:1 copolymer of vinyl methyl ether and maleic acid or anhydride.
Claim 14
Dependent Claim
21 words
A composition according to any one of claims 1 to 12 which has a pH of about 4.5 to about 9.
Claim 15
Dependent Claim
15 words
A composition according to claim 13 wherein said pH is about 5.5 to about 8.
Claim 16
Dependent Claim
22 words
A composition according to any one of claims 1 to 14 wherein said fluoride ion source comprises sodium fluoride or sodium monofluorophosphate.
Claim 17
Dependent Claim
31 words
A composition according to any one of claims 1 to 15 which contains an amount of fluoride ion source sufficient to supply about 800 to about 1500 ppm of fluoride ion.
Claim 18
Dependent Claim
29 words
A composition according to any one of claims 1 to 16 which is in the form of a toothpaste, gel or cream and contains a dentally acceptable polishing agent.
Claim 19
Dependent Claim
12 words
A composition according to claim 17 wherein said polishing agent comprises silica.
Claim 20
Dependent Claim
28 words
A composition according to any one of claims 1 to 16 which is in the form of a mouthwash and said orally acceptable vehicle is a water-alcohol mixture.
Claim 21
Dependent Claim
18 words
A composition according to any one of claims 1 to 19 wherein said vehicle also contains a humectant.
References Cited (Backward Citations)
US4421527A
Cited
US4272509A
Cited
US4340583A
Cited
US4420312A
Cited
US4348381A
Cited
US4627977A
Cited
US4806340A
Cited
US4806342A
Cited
US4808401A
Cited
US4808400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-30 | 1993-10-30 | 1994-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-30 | 1997-10-30 | 1998-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-30 | 2001-10-30 | 2002-05-01 | $7700.00 | Window Closed / Lapsed |