US4183914A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnesium polycarboxylate complexes and anticalculus agents
Assignee: Individual
•
Filing: 1977-12-19
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Granted: 1980-01-15
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Expires: 1997-12-19
Abstract
Abstract A novel composition to prevent and control dental calculus containing as the essential agent, a magnesium polycarboxylate complex formed by the reaction or interaction of a magnesium compound with a polycarboxylate selected from the group consisting of maleic acid copolymers, sulfoacrylic acid oligomers, and tricarboxy-oxa-butanol or pentanol.
Inventors
- 👤 Abdul Gaffar
- 👤 Maria C. S. Gaffar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:57
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/72; A61K8/81; A61K8/8164; A61K9/00; A61K9/0012; A61K9/0053; A61K9/0056; A61K9/0058; A61Q; A61Q11/00; A61K2800/00; A61K2800/40; A61K2800/58
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
115 words
An oral composition comprising a dental cream, mouthrinse, troche or lozenge, chewing gum, dental tablet or powder or mouthspray containing as the essential anticalculus agent, a magnesium polycarboxylate complex of a magnesium compound and a polycarboxylate compound in the ratio of 1:40 to about 4:1 magnesium compound to polycarboxylate and having a pH of about 4.5-7.8, wherein said polycarboxylate contains ionizable carboxyl groups and is a copolymer of maleic acid or anhydride and of an olefin having 2 or more carbon atoms per molecule, and is ionically bound to a dissociable, physiologically acceptable magnesium compound, wherein said magnesium compound constitutes about 0.01-5% by weight and the polycarboxylate constitutes about 0.1-10% by weight of the composition.
Claim 2
Dependent Claim
115 words
An oral composition comprising a dental cream, mouthrinse, troche or lozenge, chewing gum, dental tablet or powder or mouthspray containing as the essential anticalculus agent, a magnesium polycarboxylate complex of a magnesium compound and a polycarboxylate compound in the ratio of 1:40 to about 4:1 magnesium compound to polycarboxylate and having a pH of about 4.5-7.8, wherein said polycarboxylate contains ionizable carboxyl groups and is a copolymer of maleic acid or anhydride and of an olefin having 2 or more carbon atoms per molecule, and is ionically bound to a dissociable, physiologically acceptable magnesium compound, wherein said magnesium compound constitutes about 0.01-5% by weight and the polycarboxylate constitutes about 0.1-10% by weight of the composition.
Claim 3
Dependent Claim
56 words
A composition in accordance with claim 1, wherein the copolymer of maleic acid or anhydride has recurring groups: ##STR10## wherein M and M 1 are individually hydrogen, sodium, potassium or ammonium and may be the same or different, and X is selected from the group consisting of ethylene, styrene, isobutylene, methylvinyl ether, and ethyl vinyl ether.
Claim 4
Dependent Claim
19 words
A composition in accordance with claim 2, wherein said polycarboxylate is a copolymer of maleic anhydride and methylvinyl ether.
Claim 5
Dependent Claim
14 words
A composition in accordance with claim 1, wherein said magnesium compound is magnesium oxide.
Claim 6
Dependent Claim
14 words
A composition in accordance with claim 1, wherein said magnesium compound in magnesium chloride.
Claim 7
Dependent Claim
43 words
A method of preventing and controlling dental calculus which comprises applying the composition of claim 1 to the oral cavity, wherein the magnesium polycarboxylate complex adsorbs onto the oral surfaces forming a reservoir of magnesium ions which is slowly released within said cavity.
Claim 8
Dependent Claim
17 words
A method in accordance with claim 6 which comprises washing the oral cavity with an aqueous mouthrinse.
Claim 9
Dependent Claim
16 words
A method in accordance with claim 6 which comprises brushing the teeth with a dental cream.
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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) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |