US3868259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Denture adhesive preparation
Assignee: Warner Lambert Co LLC
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Filing: 1974-06-05
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Granted: 1975-02-25
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Expires: 1994-06-05
Abstract
Abstract An improved anhydrous denture adhesive is prepared to contain a mixture of a cationic polymeric material and a synthetic antionic gum material as the adhesive ingredient. The mixture may be formulated as a powder or anhydrous paste, which, when applied to dentures and exposed to moisture, develops superior adhesive properties. Suitable cationic materials include at least one Olower alkyl-trimethylammonium chloride-substituted-anhydroglucose polymer. As the anionic component there may be used at least one synthetic gum including carboxymethyl celluloses and cellulose sulfates.
Inventors
- 👤 James J Keegan
- 👤 Howard Rubin
- 👤 Ram N Gidwani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:07
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/30; A61K6/35
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
37 words
A DENTURE ADHESIVE COMPRISING A SUBSTANTIALLY ANHYDROUS MIXTURE OF: A. FROM ABOUT 1.0% TO ABOUT 80% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE DENTURE ADHESIVE, OF AT LEAST ONE CATIONIC POLYMERIC MATERIAL HAVING THE FORMULA
Claim 2
Dependent Claim
37 words
A DENTURE ADHESIVE COMPRISING A SUBSTANTIALLY ANHYDROUS MIXTURE OF: A. FROM ABOUT 1.0% TO ABOUT 80% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE DENTURE ADHESIVE, OF AT LEAST ONE CATIONIC POLYMERIC MATERIAL HAVING THE FORMULA
Claim 3
Dependent Claim
57 words
A denture adhesive according to calim 1 wherein, in the cationic polymeric material of (A) X is chlorine, the average value of n per anhydroglucose unit of said cellulose ether is from about 0.1 to about 0.5, and the average value of m+p per anhydroglucose unit of said cellulose ehter is from about 0.1 to about 2.5.
Claim 4
Dependent Claim
57 words
A denture adhesive according to calim 1 wherein, in the cationic polymeric material of (A) X is chlorine, the average value of n per anhydroglucose unit of said cellulose ether is from about 0.1 to about 0.5, and the average value of m+p per anhydroglucose unit of said cellulose ehter is from about 0.1 to about 2.5.
Claim 5
Dependent Claim
39 words
A denture adhesive according to claim 2 comprising a substantially anhydrous mixture of from about 3.0% to about 50% by weight of the cationic polymeric material, and from about 30% to about 90% by weight of the anionic gum.
Claim 6
Dependent Claim
15 words
A denture adhesive according to claim 3 wherein the anionic gum is a carboxymethylcellulose gum.
Claim 7
Dependent Claim
18 words
A denture adhesive according to claim 4 wherein the anionic gum is at least one sodium caboxymethylcellulose gum.
Claim 8
Dependent Claim
33 words
A denture adhesive according to claim 1 which additionally contains from about 10% to about 75% by weight, based on the weight of the total denture adhesive compositions of non-toxic, powdered, excipient materials.
Claim 9
Dependent Claim
46 words
A denture adhesive according to claim 1 which additionally contains from about 30% to about 75% by weight, based on the weight of the total denture adhesive composition of at least one cream base material selected from the group consisting of petrolatum, natural and synthetic oils.
Claim 10
Dependent Claim
56 words
A denture adhesive according to claim 1 which additionally contains from about 30% to about 75% by weight, based on the weight of the total denture adhesive composition, of a cream base material which is a combination of mineral oil with a minor amount of a polyethylene wax having a molecular weight of 1,000 to 20,000.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |