Photocurable composition for topcoat of nails or artificial nails

Patent metadata

Field	Value
Publication number	US-2017312201-A1
Application number	US-201515523786-A
Country	US
Kind code	A1
Filing date	Oct 29, 2015
Priority date	Nov 5, 2014
Publication date	Nov 2, 2017
Grant date	—

Abstract

The object of the present invention is to provide a photocurable composition for a topcoat of nails or artificial nails having excellent glossiness and a colorless and transparent outer appearance.
The present invention is related to a photocurable composition for a topcoat of nails or artificial nails including the following components (A) to (C), including 40 to 70% by mass of trimethylol propane trimethacrylate relative to the total amount of the component (B), and satisfying that a cured product thereof with a thickness of 800 μm has transmittance of 10.0% or higher at a wavelength of 400 nm:
component (A); a (meth)acrylic oligomer;
component (B): a trifunctional (meth)acrylic monomer contained at 50 to 100 parts by mass relative to 100 parts by mass of the component (A); and
component (C): a photopolymerization initiator contained at 1 to 20 parts by mass relative to 100 parts by mass of the component (A).

First claim

1 . A photocurable composition for a topcoat of nails or artificial nails comprising the following components (A) to (C), comprising 40 to 70% by mass of trimethylol propane trimethacrylate relative to the total amount of the component (B), and satisfying that a cured product thereof with a thickness of 800 mm has transmittance of 10.0% or higher at a wavelength of 400 nm:
component (A): a (meth)acrylic oligomer; component (B): a trifunctional (meth)acrylic monomer contained at 50 to 100 parts by mass relative to 100 parts by mass of the component (A); and component (C): a photopolymerization initiator contained at 1 to 20 parts by mass relative to 100 parts by mass of the component (A).

2 . A photocurable composition for a topcoat of nails or artificial nails comprising the following components (A) to (C), comprising 40 to 70% by mass of trimethylol propane trimethacrylate relative to the total amount of the component (B), and comprising 0 to 30% by mass of a visible light type photopolymerization initiator relative to the total amount of the component (C):
component (A): a (meth)acrylic oligomer; component (B): a trifunctional (meth)acrylic monomer contained at 50 to 100 parts by mass relative to 100 parts by mass of the component (A); and component (C): a photopolymerization initiator contained at 1 to 20 parts by mass relative to 100 parts by mass of the component (A).

3 . The photocurable composition for a topcoat of nails or artificial nails according to claim 2 , wherein a cured product thereof with a thickness of 800 mm has transmittance of 10.0% or higher at a wavelength of 400 nm.

4 . The photocurable composition for a topcoat of nails or artificial nails according to claim 2 , further comprising a plasticizing agent as the component (D).

5 . A coating film obtained by curing the photocurable composition for a topcoat of nails or artificial nails according to claim 2 by light irradiation and then wiping out a surface of the cured product with a piece of cloth impregnated with a solvent.

6 . A method for exhibiting glossiness by curing the photocurable composition for a topcoat of nails or artificial nails according to claim 2 by light irradiation and then wiping out a surface of the cured product with a piece of cloth impregnated with a solvent.

Assignees

• Three Bond Co Ltd

Inventors

• Takemoto Koichi

Classifications

• A61K8/55

  Phosphorus compounds · CPC title

• A61K8/87

  Polyurethanes · CPC title

• A61K8/362

  Polycarboxylic acids · CPC title

• A61Q3/02

  Nail coatings · CPC title

• A61K8/8152

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