# US 11,026,493 B2 · Eco-friendly brush

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- Number: US 11,026,493 B2
- Document ID: US11026493B2
- Status: Granted
- Kind: B2
- Application number: 16/723,114
- Filed: 2019-12-20
- Published: 2020-09-10
- Granted: 2021-06-08
- Earliest claimed: 2019-03-06
- Assignees: Sung Ho Park
- Applicants: Sung Ho Park
- Inventors: Sung Ho Park
- Web page: https://patentgrep.com/patent/US11026493B2

## CPC

- A45D 33/36: with handle
- A45D 34/042: {using a brush or the like}
- A46B 7/04: interchangeably {removable bristle carriers}
- A46B 9/021: {arranged like in cosmetics brushes, e.g. mascara, nail polish, eye shadow}
- A46B 13/02: power-driven {carriers}
- C08L 67/04: Polyesters derived from hydroxycarboxylic acids, e.g. lactones (C08L67/06 takes precedence)
- A45D 2200/10: Details of applicators
- 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)
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)

## Abstract

An eco-friendly brush is disclosed. The present disclosure relates to an eco-friendly brush in which the brush may be biodegraded at disposal, thereby preventing environmental pollution, even solving harmful problems caused by the adhesive, and enabling various types of bristle bundles to be interchangeably installed. As an exemplary embodiment, the present disclosure is provided to include: a handle made of biodegradable resin; a neck part made of the biodegradable resin, and having the rear end part thereof to which the front end part of the handle is detachably coupled; a brush fixing ring made of the biodegradable resin, and having the rear end thereof to which the front end part of the neck part is detachably coupled; and a head part inserted into a rear end part of the brush fixing ring and fixed therein, and having a bristle bundle integrally implanted on the front surface thereof.

## Claims

### Claim 1

An eco-friendly brush comprising:
a handle made of biodegradable resin;
a neck part made of the biodegradable resin, and having a rear end part of the neck part detachably coupled to a front end part of the handle;
a brush fixing ring made of the biodegradable resin, and having a rear end part of the brush fixing ring detachably coupled to a front end part of the neck part; and
a head part inserted into the rear end part of the brush fixing ring and fixed in the brush fixing ring, and having a bristle bundle integrally implanted on a front surface of the head part, wherein the head part in which the bristle bundle is integrally implanted is inserted from a rear to a front of the brush fixing ring through a guide sleeve, and on an inner circumferential surface.

### Claim 2 (depends on 1)

The eco-friendly brush of claim 1, wherein the neck part is coupled to the handle by being fitted into the front end part of the handle and rotating at a predetermined angle, and the brush fixing ring is coupled by press-fitting to the front end part of the neck part.

### Claim 3 (depends on 1)

The eco-friendly brush of claim 1, wherein the head part is provided by bonding and fixing a rear end of the bristle bundle in a state where resin material applied on a head plate is heated.

### Claim 4 (depends on 1)

The eco-friendly brush of claim 1, wherein the handle, the neck part, and the brush fixing ring are made of polylactic acid resin (PLA: Poly Lactic Acid).

### Claim 5

An eco-friendly brush comprising:
a handle made of biodegradable resin;
a neck part made of the biodegradable resin, and having a rear end part of the neck part detachably coupled to a front end part of the handle;
a brush fixing ring made of the biodegradable resin, and having a rear end part of the brush fixing ring detachably coupled to a front end part of the neck part; and
a head part inserted into the rear end part of the brush fixing ring and fixed in the brush fixing ring, and having a bristle bundle integrally implanted on a front surface of the head part, wherein the head part is provided by bonding and fixing a rear end of the bristle bundle in a state where resin material applied on a head plate is heated.