Patent US4608088A successfully refreshed from Google Patents.
US4608088A
Expired / Lapsed
US
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Denture adherent powder
Assignee: Dento Med Industries Inc
•
Filing: 1984-03-22
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Granted: 1986-08-26
•
Expires: 2004-03-22
Abstract
Abstract A denture adherent preparation in powder form, which comprises an admixture of (a) from about 40-60% dental adhesive (b) from about 60-4% gel-forming mixture of a water-soluble alginate and a setting agent for the water-soluble alginate in an amount effective to cause gelation of an aqueous solution containing the water soluble alginate. The powder composition of the present invention comprising the gel-forming mixture and dental adhesive described above, may also be used as a depot formulation for delivery of therapeutic agents to the oral cavity.
Inventors
- 👤 Oddvin Lokken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:16
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/042; A61K6/00; A61K6/30; A61K6/35; A61K8/18; A61K8/72; A61K8/73; A61K8/731; A61K8/733; A61K9/00; A61K9/0012; A61K9/0053; A61K9/006; A61K9/20; A61K9/2004; A61K9/2022; A61K9/205; A61Q; A61Q11/00; A61K2800/00; A61K2800/40; A61K2800/59; A61K2800/594
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
89 words
A denture adherent preparation in powder form, which comprises an admixture of (a) from about 40% to about 60% of a dental adhesive; and (b) from about 60% to about 40% of a gel-forming mixture comprising from about 10 to about 20% of a water-soluble alginate, from about 5 to about 20% of a setting agent for the water-soluble alginate, from 0.5 to about 15% of a retarder and from about 5 to about 20% of a filler; all percentages being based on the total weight of the composition.
Claim 2
Dependent Claim
89 words
A denture adherent preparation in powder form, which comprises an admixture of (a) from about 40% to about 60% of a dental adhesive; and (b) from about 60% to about 40% of a gel-forming mixture comprising from about 10 to about 20% of a water-soluble alginate, from about 5 to about 20% of a setting agent for the water-soluble alginate, from 0.5 to about 15% of a retarder and from about 5 to about 20% of a filler; all percentages being based on the total weight of the composition.
Claim 3
Dependent Claim
20 words
The preparation according to claim 1, wherein said dental adhesive comprises a natural or synthetic gum or a mixture thereof.
Claim 4
Dependent Claim
15 words
The preparation according to claim 1, wherein said water-soluble alginate is sodium or potassium alginate.
Claim 5
Dependent Claim
25 words
The preparation according to claim 1, wherein said setting agent is calcium sulfate dihydrate, calcium sulfate hemihydrate or calcium sulfate anhydrate or a mixture thereof.
Claim 6
Dependent Claim
29 words
The preparation according to claim 1, wherein said retarder is an alkali metal salt having an anion that forms an insoluble or slightly soluble salt with the setting agent.
Claim 7
Dependent Claim
23 words
The preparation according to claim 1, including from 0.5 to 15% of an auxiliary agent, based on the total weight of the composition.
Claim 8
Dependent Claim
35 words
A denture adherent preparation in powder form, which comprises: ______________________________________
Weight Percent
______________________________________
Potassium alginate 15
CaSO.sub.4.2H.sub.2 O
12
Na.sub.3 PO.sub.4 2
Diatomaceous earth 20
Carboxymethylcellulose, sodium
25
Arabic gum 25
Flavoring, colorant.
1
______________________________________
Claim 9
Dependent Claim
35 words
A denture adherent preparation in powder form, which comprises: ______________________________________
Weight Percent
______________________________________
Potassium alginate 15
CaSO.sub.4.2H.sub.2 O
12
Na.sub.3 PO.sub.4 2
Diatomaceous earth 20
Carboxymethylcellulose, sodium
25
Arabic gum 25
Flavoring, colorant.
1
______________________________________
Claim 10
Dependent Claim
19 words
The preparation according to claim 1, wherein said dental adhesive is a mixture of karaya gum and sodium carboxymethylcellulose.
Claim 11
Dependent Claim
43 words
The preparation according to claim 2, wherein said natural gum is selected from the group consisting of karaya gum, tragacanth gum, acacia gum, arabic gum, locus bean gum, guar gum, Shiraz gum, pectin, pectinates, chicle gum, zapota gum, jelutong gum, and pontianak gum.
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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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |