Artificial nail composition, artificial nail, artificial nail forming method, and nail art kit

Patent metadata

Field	Value
Publication number	US-2016184213-A1
Application number	US-201615061074-A
Country	US
Kind code	A1
Filing date	Mar 4, 2016
Priority date	Sep 27, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

Provided are an artificial nail composition which has excellent removability and from which an artificial nail having excellent glossiness and adhesiveness is obtained; an artificial nail produced using the artificial nail composition; a method for forming an artificial nail; and a nail art kit.
The artificial nail composition of the invention includes a polyurethane(meth)acrylate having a polycarbonate structure as component A; a binder polymer having a weight average molecular weight of 10,000 or more as component B; and a photopolymerization initiator as component C. It is preferable that the weight average molecular weight of the component A is 1,000 or more, and it is preferable that the artificial nail composition includes the component B at a proportion of 15% by mass or more relative to the total amount of the artificial nail composition.

First claim

What is claimed is:

1 . An artificial nail composition comprising:
a polyurethane(meth)acrylate having a polycarbonate structure as component A; a binder polymer having a weight average molecular weight of 10,000 or more as component B; and a photopolymerization initiator as component C.

2 . The artificial nail composition according to claim 1 , wherein the component A is represented by the following Formula 1:

wherein in Formula 1, R 1 's each independently represent a monovalent group having a (meth)acryloyloxy group at an end; R 2 and R 3 each independently represent a divalent organic group; at least one R 3 represents a group represented by the following Formula 2; and n represents an integer of 1 or more, and

wherein in Formula 2, R 4 and R 5 each independently represent a divalent organic group; and m represents an integer of 1 or more.

3 . The artificial nail composition according to claim 1 , wherein the weight average molecular weight of the component A is 1,000 or more.

4 . The artificial nail composition according to claim 1 , wherein the artificial nail composition comprises the component B at a proportion of 15% by mass or more relative to the total amount of the artificial nail composition.

5 . The artificial nail composition according to claim 1 , wherein the artificial nail composition comprises an acetophenone compound and/or an acylphosphineoxide compound as the component C.

6 . The artificial nail composition according to claim 1 , further comprising: a polymerizable compound as component D.

7 . The artificial nail composition according to claim 6 , wherein the component D includes an ethylenically unsaturated compound.

8 . The artificial nail composition according to claim 6 , wherein the component D includes a monofunctional ethylenically unsaturated compound.

9 . The artificial nail composition according to claim 6 , wherein the component D includes at least one compound selected from the group consisting of a (meth)acrylate compound having a hydroxy group, a (meth)acrylate compound having a carboxy group, and (meth)acrylic acid.

10 . The artificial nail composition according to claim 6 , wherein the component D includes at least one compound selected from the group consisting of hydroxyethyl(meth)acrylate, hydroxypropyl(meth)acrylate, hydroxybutyl(meth)acrylate, a polyalkyleneglycolmono(meth)acrylate, and (meth)acrylic acid.

11 . The artificial nail composition according to claim 6 , wherein the component D includes at least one compound selected from the group consisting of hydroxyethyl(meth)acrylate, hydroxypropyl(meth)acrylate, and (meth)acrylic acid.

12 . The artificial nail composition according to claim 6 , wherein the component D includes at least hydroxyethyl(meth)acrylate.

13 . An artificial nail comprising a layer formed by exposing the artificial nail composition according to claim 1 to light.

14 . A method for forming an artificial nail, the method comprising:
a step of applying the artificial nail composition according to claim 1 on a nail of a human being or an animal, or on another artificial nail, and forming a coating film thereon; and a step of exposing the coating film to light, and thereby forming an artificial nail.

15 . A nail art kit comprising the artificial nail composition according to claim 1 .

16 . The artificial nail composition according to claim 1 , wherein the artificial nail composition comprises the component A at a proportion of 20% by mass to 55% by mass relative to the total amount of the artificial nail composition.

17 . The artificial nail composition according to claim 1 , wherein the component B is a polyurethane or an acrylic polymer.

18 . The artificial nail composition according to claim 1 , wherein the component B is a polyurethane.

Assignees

• Fujifilm Corp

Inventors

• Abe Junya

Classifications

• A61K8/8152

  Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers · CPC title

• A61K2800/95

  Involves in-situ formation or cross-linking of polymers · CPC title

• A61K8/55

  Phosphorus compounds · CPC title

• A61K2800/81

  Preparation or application process involves irradiation · CPC title

• A61K8/87 Primary

  Polyurethanes · CPC title