Denture adhesives

Patent metadata

Field	Value
Publication number	US-11969486-B2
Application number	US-202217665139-A
Country	US
Kind code	B2
Filing date	Feb 4, 2022
Priority date	Mar 23, 2017
Publication date	Apr 30, 2024
Grant date	Apr 30, 2024

Abstract

The disclosed technology provides improved adhesive composition of use with dentures. These improved compositions include (a) a cross linked poly(acrylic) acid polymer, in combination with (b) a carbomethylcellulose (CMC) component and/or (c) an adherence promoting component. The compositions balance the many competing goals for effective denture adhesives, including adhesive strength and dispensing viscosity, without the need for zinc.

First claim

What is claimed is:

1. A denture adhesive composition comprising:
(a) 10 to 14 percent by weight of the overall composition of a cross-linked poly(acrylic) acid polymer, wherein the cross-linked poly(acrylic) acid polymer is a carbomer homopolymer, carbomer copolymer, carbomer interpolymer, or a mixture thereof; and
(b) an additional component comprising (i) 17 to 25 percent by weight of the overall composition of a carboxymethylcellulose component; and (ii) 18 to 45 percent by weight of the overall composition of an adherence promoting component comprising sodium alginate;
wherein the weight ratio of component (b) to component (a) is from 5:1 to 1:5.

2. The denture adhesive composition of claim 1 wherein the carboxymethylcellulose component comprises a sodium carboxymethylcellulose.

3. The denture adhesive composition of claim 1 wherein the carboxymethylcellulose component comprises a carboxymethylcellulose with seven degrees of substitution, a high viscosity grade, a viscosity of about 3000 cps viscosity, a smooth flow property, a fine particle size, and made to at least a food grade standard.

4. The denture adhesive composition of claim 1 wherein the adherence promoting component further comprises poly(ethylene) oxide.

5. The denture adhesive composition of claim 1 wherein the balance of the composition comprises a medium, where said medium comprises a mineral oil, petrolatum, or a mixture thereof.

6. The denture adhesive composition of claim 1 wherein the composition further comprises a medium, where said medium comprises a mineral oil, petrolatum, or a mixture thereof, and wherein the medium is present in an amount from about 14 to about 50 percent by weight.

7. The denture adhesive composition of claim 1 ;
wherein said cross-linked poly(acrylic) acid polymer of (a) comprises a carbomer homopolymer;
wherein the carboxymethylcellulose component of (b)(i) comprises a sodium carboxymethylcellulose;
wherein the adherence promoting component of (b)(ii) comprises sodium alginate; and
wherein the composition further comprises a mineral oil, petrolatum, or a mixture thereof.

8. The denture adhesive composition of claim 1 wherein the cross-linked poly(acrylic) acid polymer comprises a carbomer homopolymer present in the overall composition at about 10 to about 14 percent by weight;
wherein the carboxymethylcellulose component comprises a sodium carboxymethylcellulose present at about 18 to about 24 percent by weight;
wherein the adherence promoting component comprises sodium alginate and is present at about 18 to about 45 percent by weight;
wherein the composition further comprises a petrolatum present at about 30 to about 34 percent by weight; and
wherein the composition further comprises mineral oil present at about 12 to about 16 percent by weight.

Assignees

• Lubrizol Advanced Mat Inc

Inventors

• Draganoiu Elena S
• Moroni Antonio

Classifications

• A61K6/35 Primary

  Preparations for stabilising dentures in the mouth · CPC title

• C08L1/286

  substituted with acid radicals, e.g. carboxymethyl cellulose [CMC] (C08L1/282 takes precedence) · CPC title

• C08L33/02

  Homopolymers or copolymers of acids; Metal or ammonium salts thereof · CPC title

• C08L2203/02

  for biomedical use · CPC title

• C08L2205/03

  containing three or more polymers in a blend · CPC title