US 11,304,492 B2Granted

Artificial nail tip and curing composition set and applying method thereof

AssigneeApplied Lacquer Industries Inc.

InventorCarol Ma

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Abstract

A nail tip curing composition includes an Extend Gel, an edge-off flat brush, a nail filing device, a plurality of GEL-X tips, a pH Bonder, and a Non-Acidic Gel Primer. The pH Bonder forms a pH Bonder layer on a surface of a fingernail. The Non-Acidic Gel Primer forms a Non-Acidic Gel Prime layer overlapped on the pH Bonder layer. The Extend Gel forms an Extend Gel layer overlapped on the Non-Acidic Gel Prime layer. The GEL-X tip is filed by the nail filing device and the Extend Gel is applied on an underside contact surface of the Gel-X tip by the edge-off flat brush. The underside contact surface of the Gel-X tip is contacted with the Extend Gel layer on the fingernail in such a manner that the Gel-X tip is firmly affixed on the fingernail.

Claims8

Dependent claims

A method of applying an artificial nail tip made of acrylic material on a fingernail, the method comprising:

(a) applying a layer of adhesive composition to the top surface of a fingernail, wherein the adhesive composition consists of:
75.0-80.0% by weight of polyurethane acrylate oligomer,
10.0-15.0% by weight of 2-hydroxyethyl methacrylate (HEMA),
1.0-5.0% by weight of 1-hydroxycyclohexyl phenyl ketone, and
1.0-5.0% by weight of phenylbis(2,4,6- trimethylbenzoyl)phosphine oxide;
(b) applying a layer of adhesive composition to the underside contact surface of an artificial nail tip;
(c) gradually pressing the artificial nail tip onto the top surface of the fingernail, from the base to the tip of the artificial nail tip, to ensure a tight seal and to prevent air bubbles;
(d) continuing to press the artificial nail tip onto the top surface of the fingernail while applying UV or LED light to the artificial nail tip;
(e) after removal of pressure, applying UV or LED light to the artificial nail tip for a length of time sufficient to completely cure and harden the adhesive composition and form a bonding layer between the artificial nail tip and the fingernail;
wherein the bonding layer affixes the artificial nail tip to the surface of the fingernail for at least two weeks.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/916,216Filed 8 Mar 2018
Published: US 2019/0274407 A112 Sep 2019
Granted: 19 Apr 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification23 codes

A45D 31/00
Artificial nails
A45D 29/00
Manicuring or pedicuring implements
A45D 29/18
Manicuring or pedicuring implements: manicure or pedicure sets, e.g. combinations without case, etui, or the like
C08F 290/067
Polymers provided for in subclass C08G: polyurethanes; Polyureas

Family

US 2019/0274407 A1Pre-grant publication · published 12 Sep 2019
US 11,304,492 B2This patent

From the US filing history. Foreign family members aren’t listed.

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