US3868432A
Expired / Lapsed
US
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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 anionic 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 of the following: copolymers of substituted or unsubstituted acrylamide with vinyl quaternary ammonium salts, and copolymers of substituted or unsubstituted acrylamide with vinyl and alkyl substituted vinyl pyridinium salts. As the anionic component there may be used at least one synthetic gum which is a copolymer of maleic acid with vinly-lower alkyl-ethers.
Inventors
- 👤 James J Keegan
- 👤 Howard Rubin
- 👤 Ram N Gidwani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:59
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/30; A61K6/35
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
8 words
A COPOLYMER OF AN ACRYLAMIDE HAVING THE FORMULA:
Claim 2
Dependent Claim
8 words
A COPOLYMER OF AN ACRYLAMIDE HAVING THE FORMULA:
Claim 3
Dependent Claim
41 words
A DENTURE ADHESIVE COMPRISING A SUBSTANTIALLY ANHYDROUS MIXTURE OF: A. FROM ABOUT 1.0 TO ABOUT 80 PERCENT BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE DENTURE ADHESIVE, OF AT LEAST ONE CATIONIC POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF:
Claim 4
Dependent Claim
41 words
A DENTURE ADHESIVE COMPRISING A SUBSTANTIALLY ANHYDROUS MIXTURE OF: A. FROM ABOUT 1.0 TO ABOUT 80 PERCENT BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE DENTURE ADHESIVE, OF AT LEAST ONE CATIONIC POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF:
Claim 5
Dependent Claim
49 words
A denture adhesive according to claim 1 wherein the cationic polymeric material is a copolymer of acrylamide with a vinyl quaternary ammonium salt selected from the group consisting of trialkylaminoalkyl acrylate salts, trialkylaminoalkyl methacrylate salts, and vinyloxyalkyltrialkylammonium salts wherein the alkyl group contains from one to three carbon atoms.
Claim 6
Dependent Claim
79 words
a copolymer of an acrylamide having the formula (I) above with a vinyl or alkyl-substituted vinyl pyridinum salt, wherein the alkyl group is one to seven carbon lower alkyl; and B. from about 20 to about 99 percent by weight, based on the total weight of the denture adhesive, of at least one anionic gum selected from the group consisting of copolymers of maleic acid with vinyl-lower alkyl-ether wherein the alkyl group has from one to five carbon atoms.
Claim 7
Dependent Claim
79 words
a copolymer of an acrylamide having the formula (I) above with a vinyl or alkyl-substituted vinyl pyridinum salt, wherein the alkyl group is one to seven carbon lower alkyl; and B. from about 20 to about 99 percent by weight, based on the total weight of the denture adhesive, of at least one anionic gum selected from the group consisting of copolymers of maleic acid with vinyl-lower alkyl-ether wherein the alkyl group has from one to five carbon atoms.
Claim 8
Dependent Claim
79 words
A COPOLYMER OF AN ACRYLAMIDE HAVING THE FORMULA (I) ABOVE WITH A VINYL OR ALKYL-SUBSTITUTED VINYL PYRIDINUM SALT, WHEREIN THE ALKYL GROUP IS ONE TO SEVEN CARBON LOWER ALKYL; AND B. FROM ABOUT 20 TO ABOUT 99 PERCENT BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE DENTURE ADHESIVE, OF AT LEAST ONE ANIONIC GUM SELECTED FROM THE GROUP CONSISTING OF COPOLYMETS OF MALEIC ACID WITH VINYL-LOWER ALKYL-ETHER WHEREIN THE ALKYL GROUP HAS FROM ONE TO FIVE CARBON ATOMS.
Claim 9
Dependent Claim
79 words
A COPOLYMER OF AN ACRYLAMIDE HAVING THE FORMULA (I) ABOVE WITH A VINYL OR ALKYL-SUBSTITUTED VINYL PYRIDINUM SALT, WHEREIN THE ALKYL GROUP IS ONE TO SEVEN CARBON LOWER ALKYL; AND B. FROM ABOUT 20 TO ABOUT 99 PERCENT BY WEIGHT, BASED ON THE TOTAL WEIGHT OF THE DENTURE ADHESIVE, OF AT LEAST ONE ANIONIC GUM SELECTED FROM THE GROUP CONSISTING OF COPOLYMETS OF MALEIC ACID WITH VINYL-LOWER ALKYL-ETHER WHEREIN THE ALKYL GROUP HAS FROM ONE TO FIVE CARBON ATOMS.
Claim 10
Dependent Claim
41 words
A denture adhesive according to claim 2 comprising a substantially anhydrous mixture of from about 3.0 to about 50 percent by weight of the cationic polymeric material, and from about 30 to about 90 percent by weight of the anionic gum.
Claim 11
Dependent Claim
19 words
A denture adhesive according to claim 3 wherein the anionic gum is a copolymer of methylvinylether with maleic acid.
Claim 12
Dependent Claim
33 words
A denture adhesive according to claim 4 wherein the cationic polymeric material is a copolymer of acrylamide with a trialkylaminoalkyl methacrylate salt having from one to three carbon atoms in the alkyl group.
Claim 13
Dependent Claim
34 words
A denture adhesive according to claim 1 which additionally contains from about 10 to about 75 percent by weight, based on the weight of the total denture adhesive compositions of non-toxic, powdered, excipient materials.
Claim 14
Dependent Claim
47 words
A denture adhesive according to claim 1 which additionally contains from about 30 to about 75 percent 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 15
Dependent Claim
57 words
A denture adhesive according to claim 1 which additionally contains from about 30 to about 75 percent 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 |