# US 12,766,114 B2 · Matrix type hydrogel patch for toenail care

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- Number: US 12,766,114 B2
- Document ID: US12766114B2
- Status: Granted
- Kind: B2
- Application number: 18/991,659
- Filed: 2024-12-22
- Published: 2026-06-25
- Granted: 2026-10-20
- Earliest claimed: 2024-12-22
- Assignees: Yun Beom Ham; Chinna Chinnakaruppan
- Applicants: Yun Beom Ham; Chinna Chinnakaruppan
- Inventors: Yun Beom Ham
- Web page: https://patentgrep.com/patent/US12766114B2

## CPC

- A61K 31/12: Ketones
- A61K 8/0233: {Distinct layers, e.g. core/shell sticks}
- A61K 8/345: {containing more than one hydroxy group}
- A61K 8/35: Ketones, e.g. benzophenone
- A61K 8/365: Hydroxycarboxylic acids; Ketocarboxylic acids
- A61K 8/42: Amides
- A61K 8/8147: {Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers}
- A61K 9/7007: {Drug-containing films, membranes or sheets (A61K9/0041, A61K9/0043, A61K9/006, A61K9/0063 take precedence)}
- A61K 31/17: having the group >N—C(O)—N< or >N—C(S)—N<, e.g. urea, thiourea, carmustine (isoureas, isothioureas A61K31/155; sulfonylureas A61K31/64)
- A61K 47/10: Alcohols; Phenols; Salts thereof, e.g. glycerol; Polyethylene glycols [PEG]; Poloxamers; PEG/POE alkyl ethers
- A61K 47/12: Carboxylic acids; Salts or anhydrides thereof
- A61K 47/32: Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. carbomers {, poly(meth)acrylates, or polyvinyl pyrrolidone}
- A61P 17/00: Drugs for dermatological disorders
- A61Q 3/00: Manicure or pedicure preparations
- 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)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

The present invention relates to a hydrogel patch for nail care, wherein the composition of the hydrogel patch according to the present invention is characterized by combination of the main ingredients of hydroxyethyl urea and resacetophenone and is superior to previous products in terms of the cuticle, surface roughness, surface gloss, moisture content, blood circulation, and nail appearance improvement effects, and also improves the convenience of use.

## Claims

### Claim 1

A hydrogel composition for a nail care patch, comprising hydroxyethyl urea and resacetophenone, wherein the hydrogel composition includes sodium polyacrylate as a gel-forming hydrophilic polymer.

### Claim 2 (depends on 1)

The hydrogel composition according to claim 1, further comprising lactic acid, glycolic acid, and tartaric acid as nail permeability enhancers of hydroxyethyl urea and resacetophenone.

### Claim 3 (depends on 1)

The hydrogel composition according to claim 1, further comprising 1,2-hexanediol without containing parabens.

### Claim 4 (depends on 1)

The hydrogel composition according to claim 1, wherein the hydrogel composition is effective for improving cuticles, improving nail surface roughness, or improving hemoglobin concentration in skin around nails.

### Claim 5 (depends on 1)

A hydrogel patch manufactured by applying the hydrogel composition according to claim 1 on a nonwoven fabric.