Oral care compositions and methods

Patent metadata

Field	Value
Publication number	US-9808416-B2
Application number	US-201514964175-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Dec 9, 2015
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

An oral care composition and methods for making and using same are provided. In at least one embodiment, the oral care composition can include ethylcellulose, a binder, a plasticizer, a fluoride compound, a solvent, and fumed silica. In another embodiment, the oral care composition can include ethylcellulose, hydrogenated rosin, and acetyl tributyl citrate.

First claim

What is claimed is:

1. An oral care composition comprising:
3 wt % to 7 wt % of ethylcellulose;
15 wt % to 25 wt % hydrogenated rosin;
0.1 wt % to 3 wt % acetyl tributyl citrate;
1 wt % to 10 wt % sodium fluoride;
50 wt % to 70 wt % solvent, wherein the solvent is ethanol; and
1 wt % to 10 wt % fumed silica.

2. The oral care composition of claim 1 , wherein the composition further comprises a methacrylate copolymer.

3. The oral care composition of claim 2 , wherein the methacrylate copolymer is a copolymer of dimethylaminoethyl methacrylate, butyl methacrylate and methyl methacrylate.

4. The oral care composition of claim 1 , wherein the fumed silica is present in an amount from 4 wt % to 6 wt %, based on the total weight of the composition.

5. The oral care composition of claim 1 , wherein the oral care composition is nonaqueous.

6. The oral care composition of claim 1 , wherein the oral composition is free of shellac and beeswax.

7. The oral care composition of claim 1 , wherein the oral care composition has a yield stress (up) of 280 Pa to 290 Pa, a yield stress (down) of 180 Pa to 190 Pa, and a high-shear viscosity of 3.25 Pa·s to 3.45 Pa·s, at a temperature of 25° C.

8. The oral care composition of claim 4 ,
wherein the composition comprises from 10 wt % to 15 wt % of methacrylate copolymer.

9. A method of making an oral care composition according to claim 1 comprising:
mixing sodium fluoride, hydrogenated rosin, and ethanol to make an active ingredient premix; mixing ethylcellulose, ethanol, and fumed silica to make an ethylcellulose premix; and mixing the active ingredient premix, the ethylcellulose premix, and acetyl tributyl citrate to make the oral care composition.

10. The method of making an oral care composition of claim 9 , wherein the hydrogenated rosin is present in an amount from 19 wt % to 21 wt %, based on the total weight of the composition.

11. The method of making an oral care composition of claim 9 , wherein sodium fluoride is present in an amount from 4 wt % to 5 wt %, based on the total weight of the composition.

12. The method of making an oral care composition of claim 9 , wherein the oral care composition is nonaqueous.

13. The method of making an oral care composition of claim 9 , wherein the oral composition is free of shellac and beeswax.

14. The method of making an oral care composition of claim 9 , wherein the oral care composition has a yield stress (up) of 280 Pa to 290 Pa, a yield stress (down) of 180 Pa to 190 Pa, and a high-shear viscosity of 3.25 Pa·s to 3.45 Pa·s, at a temperature of 25° C.

Assignees

• Colgate Palmolive Co

Inventors

• Georges Marian
• Morgan Andre Michelle
• Mello Sarita Vera
• Lambert Pierre
• Blanvalet Claude

Classifications

• A61K8/37

  Esters of carboxylic acids · CPC title

• A61K2800/30

  Characterized by the absence of a particular group of ingredients · CPC title

• A61K8/731 Primary

  Cellulose; Quaternized cellulose derivatives · CPC title

• A61K2800/592

  Mixtures of compounds complementing their respective functions · CPC title

• A61K8/25

  Silicon; Compounds thereof · CPC title