# US 2008/0187498 A1 · Multiphase Toothpaste Composition

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- Number: US 2008/0187498 A1
- Document ID: US20080187498A1
- Status: Published application
- Kind: A1
- Application number: 11/883,678
- Filed: 2006-01-16
- Published: 2008-08-07
- Earliest claimed: 2005-02-04
- Inventors: Edward Francis
- Web page: https://patentgrep.com/patent/US20080187498A1

## CPC

- A61K 8/0237: {Striped compositions}
- A61K 8/02: characterised by special physical form
- A61Q 11/00: Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
- 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

Multiphase toothpaste composition comprising a first phase disposed co-axially within a second phase, each of the phases having a specific gravity of from 1.1 to 1.5 g/ml.

## Claims

### Claim 1

Multiphase toothpaste composition comprising a first phase disposed co-axially within a second phase, each of the phases having a specific gravity of from 1.1 to 1.5 g/ml.

### Claim 2 (depends on 1)

Multiphase toothpaste composition according to claim 1 comprising a first phase disposed co-axially within a second phase, each of the phases having a specific gravity of from 1.2 to 1.4 g/ml.

### Claim 3 (depends on 1)

Multiphase toothpaste composition according to claim 1 comprising a first phase disposed co-axially within a second phase, each of the phases having a specific gravity of from 1.3 to 1.35 g/ml.

### Claim 4 (depends on 1)

Multiphase toothpaste composition according to claim 1 comprising a first phase disposed co-axially within a second phase, each of the phases having a viscosity of from 180 000 to 250 000 mPa·s.

### Claim 5 (depends on 1)

Multiphase toothpaste composition according to claim 1 wherein the second phase is a visually clear gel phase.

### Claim 6 (depends on 1)

Multiphase toothpaste composition according to claim 1 wherein the first phase is opaque.

### Claim 7 (depends on 1)

Multiphase toothpaste composition according to claim 1 wherein the first phase constitutes up to 25% by volume of the toothpaste composition.

### Claim 8 (depends on 1)

Multiphase toothpaste according to claim 1 wherein the first phase constitutes from 11 to 20% by volume of the toothpaste composition.

### Claim 9 (depends on 1)

Multiphase toothpaste composition according to claim 1 wherein the first phase constitutes from 13 to 18% by volume of the toothpaste composition.

### Claim 10 (depends on 1)

Multiphase toothpaste composition according to claim 1 wherein at least one of the phases is coloured.

### Claim 11 (depends on 1)

Multiphase toothpaste composition according to claim 1 wherein the visually clear gel phase comprises abrasive silica.

### Claim 12 (depends on 1)

Multiphase toothpaste composition according to claim 1 wherein the first phase comprises chalk as abrasive.

### Claim 13 (depends on 12)

Multiphase toothpaste composition according to claim 12 wherein the chalk is fine ground natural chalk.

### Claim 14 (depends on 1)

Multiphase toothpaste composition according to claim 1 wherein the second phase comprises an abrasive silica having a Refractive Index of from 1.41 to 1.47.