US4217342A
Expired / Lapsed
US
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Magnesium polycarboxylate complexes as anticalculus agents
Assignee: Colgate Palmolive Co
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Filing: 1979-05-25
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Granted: 1980-08-12
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Expires: 1999-05-25
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
2026-10-26 13:13
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: 8
Claim 1
Independent Claim
108 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 sulfoacrylic oligomer having an average molecular weight of less than 1000 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
108 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 sulfoacrylic oligomer having an average molecular weight of less than 1000 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
38 words
A composition in accordance with claim 1, wherein the sulfoacrylic oligomer is represented by the following structure: ##STR7## Wherein M is an alkali metal or the ammonium ion, and n is less than 10 and greater than 6.
Claim 4
Dependent Claim
14 words
A composition in accordance with claim 1, wherein said magnesium compound is magnesium oxide.
Claim 5
Dependent Claim
14 words
A composition in accordance with claim 1, wherein said magnesium compound is magnesium chloride.
Claim 6
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 7
Dependent Claim
17 words
A method in accordance with claim 5 which comprises washing the oral cavity with an aqueous mouthrinse.
Claim 8
Dependent Claim
16 words
A method in accordance with claim 5 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) | 1983-08-12 | 1984-02-11 | 1984-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-12 | 1988-02-11 | 1988-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-12 | 1992-02-11 | 1992-08-12 | $7700.00 | Window Closed / Lapsed |