# US 11,076,677 B2 · Applicator member for cosmetic product applicator, said applicator member being obtained at least partially by moulding at least one thermoplastic elastomer material

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- Number: US 11,076,677 B2
- Document ID: US11076677B2
- Status: Granted
- Kind: B2
- Application number: 16/067,642
- Filed: 2016-12-20
- Published: 2019-01-10
- Granted: 2021-08-03
- Earliest claimed: 2016-01-05
- Assignees: L'oreal
- Applicants: L'oreal
- Inventors: Jean-Marie Hervet; Carine Pascal; Alain Berhault; Jean-Marie Julien
- Web page: https://patentgrep.com/patent/US11076677B2

## CPC

- A45D 34/045: {connected to the cap of the container}
- A45D 34/043: {movable within the container}
- A46B 3/005: {Bristle carriers and bristles moulded as a unit (A46B1/00 takes precedence)}
- A46B 5/00: Brush bodies; Handles integral with brushware
- A46B 9/005: {where the brushing material is not made of bristles, e.g. sponge, rubber or paper}
- A46B 2200/1053: Cosmetics applicator specifically for mascara
- A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A46B: BRUSHES (handles not integral with brushware B25G)

## Abstract

The present invention relates to an applicator member (8) for a cosmetic product applicator, in particular for applying cosmetic product to keratin fibres, and especially for applying mascara to eyelashes, said applicator member being obtained at least partially by moulding at least one thermoplastic elastomer material, characterized in that said material is a TPS having a tensile strength greater than or equal to 10 MPa, preferably greater than or equal to 15 MPa.

## Claims

### Claim 1

An application member for a cosmetic product applicator, for applying cosmetic product to keratin fibres, and for applying mascara to eyelashes, said applicator member being obtained at least partially by moulding at least one thermoplastic elastomer material,
wherein said thermoplastic elastomer material is a thermoplastic styrene having a tensile strength greater than or equal to 10 MPa,
wherein the thermoplastic styrene material contains at least 15% by weight of polyolefin filler,
wherein the polyolefin filler comprises polyethylene, and
wherein the thermoplastic styrene material comprises less than 20% by weight of a filler, the filler being selected from CaC03, aluminium and its mineral compounds, kaolin, and zinc and its mineral compounds.

### Claim 2 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene material has a tensile strength less than or equal to 25 MPa.

### Claim 3 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene material has an elongation at break greater than or equal to 500%.

### Claim 4 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene material has an elongation at break less than 800%.

### Claim 5 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene material has a tear strength greater than or equal to 30 N/mm.

### Claim 6 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene is an SEBS.

### Claim 7 (depends on 1)

The application member according to claim 1, wherein the thermoplastic elastomer material has a hardness greater than or equal to 60 Shore A.

### Claim 8 (depends on 1)

The application member according to claim 1, wherein the thermoplastic elastomer material has a hardness less than or equal to 110 Shore A.

### Claim 9 (depends on 1)

The application member according to any claim 1, wherein the thermoplastic styrene material contains at least 35% by weight of the polyolefin filler.

### Claim 10 (depends on 9)

The application member according to claim 9, wherein the thermoplastic styrene material contains at most 70% by weight of polyolefin filler.

### Claim 11 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene material comprises less than 10% by weight of the filler.

### Claim 12 (depends on 1)

The application member according to claim 1, wherein the application member includes a core bearing a set of protruding application elements.

### Claim 13 (depends on 12)

The application member according to claim 12, wherein at least some of the application elements are made from the thermoplastic styrene material, in one piece with the core.

### Claim 14 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene has a tensile strength greater than or equal to 15 MPa.

### Claim 15 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene material has an elongation at break greater than 600%.

### Claim 16 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene material has an elongation at break less than 700%.

### Claim 17 (depends on 1)

The application member according to claim 1, wherein the thermoplastic styrene material has a tear strength greater than or equal to 60 N/mm.

### Claim 18 (depends on 1)

The application member according to claim 1, wherein the thermoplastic elastomer material has a hardness greater than or equal to 85 Shore A.

### Claim 19 (depends on 1)

The application member according to claim 1, wherein the thermoplastic elastomer material has a hardness less than or equal to 100 Shore A.
