# US 2019/0314261 A1 · Glitter and the use thereof in cosmetic formulations

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- Number: US 2019/0314261 A1
- Document ID: US20190314261A1
- Status: Published application
- Kind: A1
- Application number: 16/380,565
- Filed: 2019-04-10
- Published: 2019-10-17
- Earliest claimed: 2018-04-12
- Assignees: Sigmund Lindner GmbH
- Applicants: Sigmund Lindner GmbH
- Inventors: Erwin Pschierer
- Web page: https://patentgrep.com/patent/US20190314261A1

## CPC

- A61K 8/731: {Cellulose; Quaternized cellulose derivatives}
- A61Q 1/02: Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12)
- A61K 8/0258: {Layered structure}
- A61K 8/26: Aluminium; Compounds thereof
- A61Q 1/04: for lips
- A61Q 1/10: for eyes, e.g. eyeliner, mascara
- A61Q 1/12: Face or body powders for grooming, adorning or absorbing
- A61Q 19/001: {Preparations for care of the lips}
- B32B 15/04: comprising metal as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a bituminous or tarry layer B32B11/08; next to a water-setting substance layer B32B13/06; next to a glass layer B32B17/061; next to a cellulosic plastic layer B32B23/042)}
- B32B 15/08: of synthetic resin
- C09C 1/00: Treatment of specific inorganic materials other than fibrous fillers (tenebrescent materials C09K9/00; luminescent materials C09K11/00); Preparation of carbon black
- A61K 2800/624: by macromolecular compounds
- 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
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C09C: TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES (treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone C04B14/00, C04B18/00, C04B20/00); PREPARATION OF CARBON BLACK {; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS}

## Abstract

The present invention relates to glitter with improved lustre effect and improved skin feeling, and also glitter with improved surface coverage (covering power) and also the use thereof in cosmetic formulations, wherein the glitters comprise a film which comprises cellulose acetate.

## Claims

### Claim 1

A glitter comprising a film which comprises cellulose acetate.

### Claim 2 (depends on 1)

The glitter of claim 1, wherein the film comprises at least 60 wt % cellulose acetate based on the weight of the film.

### Claim 3 (depends on 1)

The glitter of claim 1, wherein the film essentially consists of cellulose acetate.

### Claim 4 (depends on 1)

The glitter of claim 1, wherein the glitter is further coated with a metal layer.

### Claim 5 (depends on 4)

The glitter of claim 4, wherein the film or the metal layer is coated with a coating based on cellulose or modified cellulose, cellulose acetate butyrate, cellulose acetate propionate, cellulose acetate, polyurethane, acrylate, styrene acrylate, and/or epoxide.

### Claim 6 (depends on 1)

The glitter of claim 1, wherein the film has a thickness of 5 μm or more.

### Claim 7 (depends on 1)

The glitter of claim 1, wherein the film has a transmissivity for light in the wavelength range from 380 to 780 nm of at least 70%.

### Claim 8 (depends on 1)

The glitter of claim 1, wherein the film has an E modulus of less than 3000 Nmm−2 measured according to ASTM D883.

### Claim 9 (depends on 1)

Use of the glitter of claim 1 in a cosmetic product.

### Claim 10 (depends on 1)

A cosmetic product comprising the glitter of claim 1.

### Claim 11 (depends on 4)

The glitter of claim 4, wherein the metal is aluminum.

### Claim 12 (depends on 5)

The glitter of claim 5, wherein the film or the metal layer is coated with a coating based on cellulose nitrate.

### Claim 13 (depends on 1)

The glitter of claim 1, wherein the film has a thickness of 40 μm or less.

### Claim 14 (depends on 1)

The glitter of claim 1, wherein the film has a thickness of 5 μm to 40 μm.

### Claim 15 (depends on 8)

The glitter of claim 8, wherein the film has an E modulus of 2000-2500 Nmm−2 measured according to ASTM D883.