# US 11,744,784 B2 · Dyed particles with a high pigment content

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- Number: US 11,744,784 B2
- Document ID: US11744784B2
- Status: Granted
- Kind: B2
- Application number: 16/498,416
- Filed: 2018-03-30
- Published: 2020-06-18
- Granted: 2023-09-05
- Earliest claimed: 2017-03-30
- Assignees: Capsum
- Applicants: Capsum
- Inventors: Julie Cani; Cassia Michel; Morgane Forest
- Web page: https://patentgrep.com/patent/US11744784B2

## CPC

- A61K 8/11: Encapsulated compositions
- A61K 8/0216: {Solid or semisolid forms}
- A61K 8/19: containing inorganic ingredients
- A61K 8/20: Halogens; Compounds thereof
- A61K 8/29: Titanium; Compounds thereof
- A61K 8/345: {containing more than one hydroxy group}
- A61K 8/55: Phosphorus compounds
- A61K 8/73: Polysaccharides
- A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12)
- A61Q 5/00: Preparations for care of the hair
- A61K 2800/412: Microsized, i.e. having sizes between 0.1 and 100 microns
- A61K 2800/43: Pigments; Dyes
- A61K 2800/621: by inorganic compounds
- A61K 2800/622: by organic compounds
- A61K 2800/651: The particulate/core comprising inorganic material
- A61K 2800/652: The particulate/core comprising organic material
- 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

A series of particles, in which each particle contains at least 3 wt. % of pigment(s) in relation to the weight of the particle, a method for producing the series of particles, and uses thereof in cosmetic compositions, particularly in make-up for keratinous materials.

## Claims

### Claim 1

A particle comprising at least 3% by weight of pigment(s), in relation to the weight of said particle, wherein said particle comprises a core that is liquid, or at least partially gelled or at least partially thixotropic, and an enveloping shell which totally encapsulates said core, said core being monophasic or comprising an intermediate droplet of an intermediate phase, the intermediate phase being placed in contact with the enveloping shell, and at least one internal droplet of an internal phase being disposed in the intermediate droplet, and wherein the diameter of said particle is in a range from 0.1 mm to 10 mm.

### Claim 2 (depends on 1)

The particle according to claim 1, selected from solid particles or particles of the core/shell type.

### Claim 3

A series of particles, in which at least one particle comprises at least 3% by weight of pigment(s), in relation to the weight of said particle, wherein said one particle comprises a core that is liquid, or at least partially gelled or at least partially thixotropic, and an enveloping shell which totally encapsulates said core, said core being monophasic or comprising an intermediate droplet of an intermediate phase, the intermediate phase being placed in contact with the enveloping shell, and at least one internal droplet of an internal phase being disposed in the intermediate droplet, and wherein the diameter of said particles is in a range from 0.1 mm to 10 mm.

### Claim 4 (depends on 3)

The series of particles according to claim 3, in which the coefficient of variation of the diameters of the colored particles is less than 10%.

### Claim 5 (depends on 4)

The series of particles according to claim 4, in which the said particles are solid particles or core/shell type particles.

### Claim 6 (depends on 3)

The series of particles according to claim 3, in which the said particles further comprise at least one gelling agent.

### Claim 7 (depends on 3)

The series of particles according to claim 3, in which the said particles further comprise at least one smoothening-concealing effect filler.

### Claim 8 (depends on 3)

The series of particles according to claim 3, in which the said particles further comprise at least one coloring agent that is different from the said one or more pigment(s).

### Claim 9 (depends on 1, 3)

A composition comprising at least one particle according to claim 1 or comprising a series of particles according to claim 3.

### Claim 10 (depends on 1, 3)

A cosmetic composition, comprising at least one particle according to claim 1 or comprising a series of particles according to claim 3, in combination with a physiologically acceptable medium.

### Claim 11 (depends on 9)

The composition according to claim 9, the said composition being a make-up composition.

### Claim 12 (depends on 9)

A non-therapeutic method for the cosmetic treatment of a keratinous material, comprising at least one step of application on the said keratinous material of at least one composition according to claim 9.

### Claim 13 (depends on 1)

The particle according to claim 1, wherein the core comprises an intermediate droplet of an intermediate phase, the intermediate phase being placed in contact with the enveloping shell, and at least one internal droplet of an internal phase being disposed in the intermediate droplet.

### Claim 14 (depends on 1)

The particle according to claim 1, comprising at least 10% by weight of pigment(s), in relation to the weight of the said particle.
