Patent US4315779A successfully refreshed from Google Patents.
US4315779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-adhesive gel compositions for stabilizing dentures
Assignee: Richardson Vicks Inc
•
Filing: 1979-10-01
•
Granted: 1982-02-16
•
Expires: 1999-10-01
Abstract
Abstract A substantially non-adhesive gel composition for use in improving the fit and adaptation of dentures to the oral cavity of the user, which comprises about 1 to 10% by weight of a hydrophilic cellulose polymer or alginate, about 5 to about 40% by weight of a demulcent, preferably glycerine, and about 50 to about 95% water. The composition reduces denture movement and prevents buildup of undesireable deposit such as plaque or the like.
Inventors
- 👤 Allen Heyd
- 👤 Nutan B. Shah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:29
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/30; A61K6/35
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
69 words
A substantially non-adhesive gel composition for improving the adaptation of dentures to the oral cavity of the wearer thereof, comprising about 1 to about 10% by weight of a hydrophilic cellulose polymer, an alginate or xanthan gum, from about 5 to about 40% by weight of a demulcent selected from the group consisting of glycerine, sorbitol and propylene glycol and from about 50 to about 95% by weight water.
Claim 2
Dependent Claim
69 words
A substantially non-adhesive gel composition for improving the adaptation of dentures to the oral cavity of the wearer thereof, comprising about 1 to about 10% by weight of a hydrophilic cellulose polymer, an alginate or xanthan gum, from about 5 to about 40% by weight of a demulcent selected from the group consisting of glycerine, sorbitol and propylene glycol and from about 50 to about 95% by weight water.
Claim 3
Dependent Claim
10 words
A composition of claim 1 wherein the demulcent is glycerine.
Claim 4
Dependent Claim
14 words
A composition of claim 1 wherein the hydrophilic cellulose polymer is cross-linked sodium carboxymethylcellulose.
Claim 5
Dependent Claim
15 words
A composition of claim 2 wherein the hydrophilic cellulose polymer is a cross-linked sodium carboxymethylcellulose.
Claim 6
Dependent Claim
17 words
A composition of claim 3 wherein the sodium carboxymethylcellulose is cross-linked with aluminum sulfate and citric acid.
Claim 7
Dependent Claim
17 words
A composition of claim 4 wherein the sodium carboxymethylcellulose is cross-linked with aluminum sulfate and citric acid.
Claim 8
Dependent Claim
38 words
A composition of claim 2 having the formula: ______________________________________
Component % Wt/Wt
______________________________________
Sodium carboxymethylcellulose
1 to 5%
Glycerine 20 to 30%
Aluminum sulfate 0 to 0.5%
Citric Acid 0 to 1.5%
Water and optional components
Balance
______________________________________
Claim 9
Dependent Claim
45 words
A composition of claim 2 having the following formula: ______________________________________
Component % Wt/Wt
______________________________________
Sodium carboxymethylcellulose
2.0%
Glycerine 25.0%
Preservative agents 0.1%
Aluminum sulfate 0.28%
Citric Acid 0.135%
Sodium Chloride 0.50%
Hydrochloric Acid 0.24%
Sodium Hydroxide 0.227%
Dyes and flavoring agents
0.602%
Water 71.132%
______________________________________
References Cited (Backward Citations)
US2716615A
Cited
GB967751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-15 | 1985-08-17 | 1986-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-15 | 1989-08-17 | 1990-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-15 | 1993-08-17 | 1994-02-16 | $7700.00 | Window Closed / Lapsed |