# US 10,765,610 B2 · Oral care compositions containing potassium nitrate and peroxide

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- Number: US 10,765,610 B2
- Document ID: US10765610B2
- Status: Granted
- Kind: B2
- Application number: 15/475,169
- Filed: 2017-03-31
- Published: 2017-10-05
- Granted: 2020-09-08
- Earliest claimed: 2016-04-01
- Assignees: The Procter & Gamble Company
- Applicants: The Procter & Gamble Company
- Inventors: Sanjeev Midha; Lawrence Edward Dolan
- Web page: https://patentgrep.com/patent/US10765610B2

## CPC

- A61K 8/22: Peroxides; Oxygen; Ozone
- A61K 8/0216: {Solid or semisolid forms}
- A61K 8/19: containing inorganic ingredients
- A61K 8/21: Fluorides; Derivatives thereof
- A61K 8/24: Phosphorous; Compounds thereof
- A61K 8/25: Silicon; Compounds thereof
- A61K 8/342: {Alcohols having more than seven atoms in an unbroken chain}
- A61K 8/463: {containing sulfuric acid derivatives, e.g. sodium lauryl sulfate}
- A61K 8/8158: {Homopolymers or copolymers of amides or imides, e.g. (meth) acrylamide; Compositions of derivatives of such polymers}
- A61Q 11/00: Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
- A61K 2800/28: Rubbing or scrubbing compositions; Peeling or abrasive compositions; Containing exfoliants
- A61K 2800/30: Characterized by the absence of a particular group of ingredients
- A61K 2800/412: Microsized, i.e. having sizes between 0.1 and 100 microns
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

An oral care composition containing a gel phase, potassium nitrate, a peroxide source, an abrasive, and a fluoride source. Phase separation is not visually perceptible in the oral care composition.

## Claims

### Claim 1

A dentifrice composition comprising:
a. a gel network phase comprising a cold dispersible fatty amphiphile and a secondary surfactant, wherein the cold dispersible fatty amphiphile comprises
i. about 40%, by weight of the cold dispersible fatty amphiphile, of cetyl alcohol,
ii. about 40%, by weight of the cold dispersible fatty amphiphile, of stearyl alcohol,
iii. about 10%, by weight of the cold dispersible fatty amphiphile, of sodium lauryl sulfate, and
iv. about 10%, by weight of the cold dispersible fatty amphiphile, of a sodium acrylate/sodium acryloyl dimethyl taurate copolymer;
b. potassium nitrate;
c. a peroxide source selected from the group consisting of hydrogen peroxide, urea peroxide, calcium peroxide, sodium peroxide, zinc peroxide, polyvinylpyrrolidone peroxide complex and combinations thereof;
d. an abrasive; and
e. a fluoride ion source selected from the group consisting of stannous fluoride, sodium fluoride, potassium fluoride, amine fluoride, sodium monofluorophosphate, indium fluoride, amine fluoride, and combinations thereof.

### Claim 2 (depends on 1)

The composition of claim 1, wherein the composition comprises from about 0.1% to about 8%, by weight of the dentifrice composition, of the peroxide.

### Claim 3 (depends on 1)

The composition of claim 1, wherein the composition comprises less than about 0.1%, by weight of the dentifrice composition, of carrageenan.

### Claim 4 (depends on 1)

The composition of claim 1, wherein the composition comprises from about 3% to about 17%, by weight of the dentifrice composition, of the cold dispersible fatty amphiphile.

### Claim 5 (depends on 1)

The composition of claim 1, wherein the composition has a viscosity from about 10 BKUs to about 45 BKUs.

### Claim 6 (depends on 1)

The composition of claim 1, wherein the composition comprises from about 25% to about 70%, by weight of the dentifrice composition, of water.

### Claim 7 (depends on 1)

The composition according claim 1, wherein the composition comprises from about 1% to about 15%, by weight of the dentifrice composition, of the secondary surfactant.

### Claim 8 (depends on 1)

The composition of claim 1, wherein the abrasive comprises polyorganosilsequioxane particles, calcium pyrophosphate, dicalcium phosphosphate, calcium phosphate, strontium carbonate, barium sulfate, fused silica, or combinations thereof.