Hydrophilic denture adhesive
AssigneeRichardson-Vicks Inc.
InventorsDadi J. Dhabhar, Nicholas F. Schmidt
Life of this patent
Estimating the term…
Abstract
An improved denture adhesive containing an adhesive polymeric fraction comprising sodium carboxymethylcellulose and poly(ethylene oxide) 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.
Claims19
A denture adhesive composition consisting essentially of a substantially anhydrous mixture of:
- (a) from about 15 to about 55 percent w/w sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a weight ratio of from about 6:1 to about 1:6, respectively;
- and
- (b) from about 45 to about 85 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a number average molecular weight of from 200 to 20,000 and said fraction having a viscosity of from about 44 to about 25,600 centipoises at about 60.degree. C.
A denture adhesive composition consisting essentially of a substantially anhydrous mixture of:
- (a) from about 24 to about 50 percent w/w sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a weight ratio of from about 2:1 to about 3.5:1 respectively;
- and
- (b) from about 50 to about 76 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a number average molecular weight of from about 200 to 20,000 and said fraction having a viscosity of from about 44 to about 2,500 centipoises at about 60.degree. C.
A denture adhesive composition consisting essentially of a substantially anhydrous mixture of:
- (a) from about 32 to about 42.5 percent w/w sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a weight ratio of from about 2:1 to about 3:1, respectively;
- and
- (b) from about 57.5 to about 68 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a number average molecular weight of from 200 to 20,000 and said fraction having a viscosity of from about 44 to about 2,500 centipoises at about 60.degree. C.
A denture adhesive composition consisting essentially of a substantially anhydrous mixture of:
- (a) from about 15 to about 55 percent w/w sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a weight ratio of from about 2:1 to about 3.5:1, respectively;
- and
- (b) from about 45 to about 85 percent w/w of a polyethylene glycol fraction comprising one or more polyethylene glycols each having a number average molecular weight of from 200 to 20,000 and said fraction having a viscosity of from about 44 to about 300 centipoises at about 60.degree. C.
A denture adhesive composition consisting essentially of a substantially anhydrous mixture of:
- (a) from about 15 to about 55 percent w/w of sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a weight ratio of from about 2:1 to about 3.5:1, respectively;
- (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 number average molecular weight of from 200 to 20,000 and said fraction having a viscosity of from about 44 to about 300 centipoises at about 60.degree. C.
A denture adhesive composition consisting essentially of a substantially anhydrous mixture of:
- (a) from about 24 to about 50 percent w/w of sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a weight ratio of from about 2:1 to about 3.5:1, respectively;
- (b) from about 5 to about 15 percent w/w of glycerin;
- and
- (c) substantially the remainder of a polyethylene glycol fraction comprising a mixture of PEG 400 and PEG 8000 in a weight ratio of from about 9:1 to about 33:1 respectively.
A denture adhesive composition consisting essentially of a substantially anhydrous mixture of:
- (a) about 32 percent w/w of sodium carboxymethylcellulose and poly(ethylene oxide) homopolymer in a weight ratio of about 3:1, respectively;
- (b) about 10 percent w/w glycerin;
- (c) up to about 0.5 percent w/w of flavoring and coloring agents;
- and
- (d) substantially the remainder of a polyethylene glycol fraction comprising a mixture of PEG 400 and PEG 8000 in a weight ratio of from about 9:1 to about 33:1 respectively.
A denture adhesive composition consisting essentially of:
- (a) about 24% w/w of sodium carboxymethylcellulose;
- (b) about 8% w/w of poly(ethylene oxide) hompolymer;
- (c) about 55.25% w/w of polyethylene glycol 400;
- (d) about 2.3% w/w of polyethylene glycol 8000;
- (e) about 10% w/w of glycerin;
- and
- (f) about 0.45% w/w of flavoring and coloring agents.
A denture adhesive composition consisting essentially of:
- (a) about 31.9% w/w of sodium carboxymethylcellulose;
- (b) about 10.6% w/w of poly(ethylene oxide) homopolymer;
- (c) about 44.4% w/w of polyethylene glycol 600;
- (d) about 2.8% w/w of polyethylene glycol 8000;
- (e) about 10.0% w/w of glycerin;
- and
- (f) about 0.3% w/w of flavoring and coloring agents.
A denture adhesive composition in powder form consisting essentially of:
- (a) about 24-30% w/w of sodium carboxymethylcellulose;
- (b) about 8-10% w/w of poly(ethylene oxide) homopolymer;
- and
- (c) about 60-68% w/w of polyethylene glycol 8000.
Dependencies are inferred from the claim text.