Patent US4474902A successfully refreshed from Google Patents.
US4474902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Karaya gum adhesive in a hydrophilic denture vehicle
Assignee: Richardson Vicks Inc
•
Filing: 1982-12-07
•
Granted: 1984-10-02
•
Expires: 2002-12-07
Abstract
Abstract An improved denture adhesive containing a karaya gum adhesive component in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.
Inventors
- 👤 Dadi J. Dhabhar
- 👤 Nicholas F. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:49
CPC Classifications
A; A61; A61K; A61K6/00; A61K6/30; A61K6/35
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
84 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) an effective adhesive amount of a karaya gum fraction consisting essentially of karaya gum solely or in combination with either or both of sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer; and (b) a polyethylene glycol fraction comprising one or more polyethylene glycols each having an average molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 25,600 centipoises at about 60° C.
Claim 2
Dependent Claim
84 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) an effective adhesive amount of a karaya gum fraction consisting essentially of karaya gum solely or in combination with either or both of sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer; and (b) a polyethylene glycol fraction comprising one or more polyethylene glycols each having an average molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 25,600 centipoises at about 60° C.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein (a) is an effective adhesive amount of karaya gum.
Claim 4
Dependent Claim
20 words
The composition of claim 1 wherein (a) is an effective adhesive amount of karaya gum in combination with sodium carboxymethylcellulose.
Claim 5
Dependent Claim
21 words
The composition of claim 1 wherein (a) is an effective adhesive amount of karaya gum in combination with poly(ethylene oxide) homopolymer.
Claim 6
Dependent Claim
24 words
The composition of claim 1 wherein (a) is an effective adhesive amount of karaya gum in combination with sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer.
Claim 7
Dependent Claim
74 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 35 to about 55 percent w/w of karaya gum; and (b) from about 45 to about 65 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 2500 centipoises at about 60° C.
Claim 8
Dependent Claim
74 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 35 to about 55 percent w/w of karaya gum; and (b) from about 45 to about 65 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 2500 centipoises at about 60° C.
Claim 9
Dependent Claim
19 words
The composition of claim 6 wherein up to about one-half of said polyethylene glycol fraction is substituted with glycerin.
Claim 10
Dependent Claim
89 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 50 percent w/w of karaya gum and sodium carboxymethylcellulose in a respective weight ratio of from about 4:1 to about 1:4; and (b) from about 50 to about 75 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 2500 centipoises at about 60° C.
Claim 11
Dependent Claim
89 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 50 percent w/w of karaya gum and sodium carboxymethylcellulose in a respective weight ratio of from about 4:1 to about 1:4; and (b) from about 50 to about 75 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 2500 centipoises at about 60° C.
Claim 12
Dependent Claim
19 words
The composition of claim 8 wherein up to about one-half of said polyethylene glycol fraction is substituted with glycerin.
Claim 13
Dependent Claim
90 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 40 percent w/w of karaya gum and poly(ethylene oxide) homopolymer in a respective weight ratio of from about 4:1 to about 1:4; and (b) from about 60 to about 75 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 2500 centipoises at about 60° C.
Claim 14
Dependent Claim
90 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 40 percent w/w of karaya gum and poly(ethylene oxide) homopolymer in a respective weight ratio of from about 4:1 to about 1:4; and (b) from about 60 to about 75 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 2500 centipoises at about 60° C.
Claim 15
Dependent Claim
19 words
The composition of claim 10 wherein up to about one-half of said polyethylene glycol fraction is substituted with glycerin.
Claim 16
Dependent Claim
88 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 50 percent w/w of karaya gum, sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a respective weight ratio of about 1:1:1; and (b) from about 50 to about 75 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 2500 centipoises at about 60° C.
Claim 17
Dependent Claim
88 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 50 percent w/w of karaya gum, sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a respective weight ratio of about 1:1:1; and (b) from about 50 to about 75 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 2500 centipoises at about 60° C.
Claim 18
Dependent Claim
19 words
The composition of claim 12 wherein up to about one-half of said polyethylene glycol fraction is substituted with glycerin.
Claim 19
Dependent Claim
78 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 35 to about 55 percent w/w of karaya gum; (b) up to about 25 percent w/w of glycerin; and (c) substantially the remainder of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 300 centipoises at about 60° C.
Claim 20
Dependent Claim
78 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 35 to about 55 percent w/w of karaya gum; (b) up to about 25 percent w/w of glycerin; and (c) substantially the remainder of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 300 centipoises at about 60° C.
Claim 21
Dependent Claim
19 words
The composition of claim 14 wherein (b) comprises from about 5 to about 15 percent w/w of said glycerin.
Claim 22
Dependent Claim
15 words
The composition of claim 14 wherein (b) comprises about 10 percent w/w of said glycerin.
Claim 23
Dependent Claim
93 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 50 percent w/w of karaya gum and sodium carboxymethylcellulose in a respective weight ratio of from about 4:1 to about 1:4; (b) up to about 25 percent w/w of glycerin; and (c) substantially the remainder of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 300 centipoises at about 60° C.
Claim 24
Dependent Claim
93 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 50 percent w/w of karaya gum and sodium carboxymethylcellulose in a respective weight ratio of from about 4:1 to about 1:4; (b) up to about 25 percent w/w of glycerin; and (c) substantially the remainder of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 300 centipoises at about 60° C.
Claim 25
Dependent Claim
18 words
The composition of claim 17 wherein (b) comprises about 5 to about 15 percent w/w of said glycerin.
Claim 26
Dependent Claim
15 words
The composition of claim 17 wherein (b) comprises about 10 percent w/w of said glycerin.
Claim 27
Dependent Claim
94 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 40 percent w/w of karaya gum and poly(ethylene oxide) homopolymer in a respective weight ratio of from about 4:1 to about 1:4; (b) up to about 25 percent w/w of glycerin; and (c) substantially the remainder of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 300 centipoises at about 60° C.
Claim 28
Dependent Claim
94 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 40 percent w/w of karaya gum and poly(ethylene oxide) homopolymer in a respective weight ratio of from about 4:1 to about 1:4; (b) up to about 25 percent w/w of glycerin; and (c) substantially the remainder of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 300 centipoises at about 60° C.
Claim 29
Dependent Claim
18 words
The composition of claim 20 wherein (b) comprises about 5 to about 15 percent w/w of said glycerin.
Claim 30
Dependent Claim
15 words
The composition of claim 20 wherein (b) comprises about 10 percent w/w of said glycerin.
Claim 31
Dependent Claim
92 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 50 percent w/w of karaya gum, sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a respective weight ratio of about 1:1:1; (b) up to about 25 percent w/w of glycerin; and (c) substantially the remainder of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 300 centipoises at about 60° C.
Claim 32
Dependent Claim
92 words
A denture adhesive composition comprising a substantially anhydrous mixture of: (a) from about 25 to about 50 percent w/w of karaya gum, sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a respective weight ratio of about 1:1:1; (b) up to about 25 percent w/w of glycerin; and (c) substantially the remainder of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a molecular weight of from about 200 to about 20,000 and said fraction having an average viscosity of from about 44 to about 300 centipoises at about 60° C.
Claim 33
Dependent Claim
18 words
The composition of claim 23 wherein (b) comprises about 5 to about 15 percent w/w of said glycerin.
Claim 34
Dependent Claim
15 words
The composition of claim 23 wherein (b) comprises about 10 percent w/w of said glycerin.
References Cited (Backward Citations)
US2978812A
Cited
US3102838A
Cited
US3868259A
Cited
US4198243A
Cited
EP0008131A1
Cited
US4373036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |