METHOD OF PREPARATION OF RADIATION-CURABLE COLORED ARTIFICIAL NAIL GELS

• US 20120004340A1
• Filed: 09/14/2011
• Published: 01/05/2012
• Est. Priority Date: 03/16/2010
• Status: Active Grant

• Current Assignee: Mycone Dental Supply Company Incorporated (Solstice Resorts, Inc.)
• Original Assignee: Mycone Dental Supply Company Incorporated (Solstice Resorts, Inc.)
• Inventors: Sheran, Kevin M., Iannece, Gary, RANEY, ROBERT R., Steffier, Lary W.
• Granted Patent: US 8,367,045 B2
• Time in Patent Office: Days
• US Class Current: 522/72
• CPC Class Codes: A61K 2800/81 Preparation or application process involves irradiation
• CPC Class Codes: A61K 2800/95 Involves in-situ formation or cross-linking of polymers
• CPC Class Codes: A61K 8/34 Alcohols
• CPC Class Codes: A61K 8/361 Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof
• CPC Class Codes: A61K 8/37 Esters of carboxylic acids
• CPC Class Codes: A61K 8/731 Cellulose; Quaternized cellulose derivatives
• CPC Class Codes: 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
• CPC Class Codes: A61K 8/87 Polyurethanes
• CPC Class Codes: A61Q 3/02 Nail coatings

Abstract

A method of preparing colored UV-curable artificial nail gel compositions comprising dispersing a pigment in an organic liquid to form a pigment concentrate and mixing the pigment concentrate with a polyfunctional acrylic monomer and/or a polyfunctional acrylic oligomer, and the resultant highly colored artificial nail gel are disclosed.

Claims

1. A method of preparing colored UV-curable compositions useful for adornment of natural and artificial nails and artificial nail extensions comprising dispersing a pigment in an organic liquid to form a pigment concentrate, the organic liquid comprised of one or more organic chemicals selected from solvents, ethylenically unsaturated monomers, and ethylenically unsaturated oligomers;

and mixing the dispersed pigment concentrate with a radiation-curable nail gel composition comprising one or more ethylenically unsaturated monomers, one or more ethylenically unsaturated oligomers, or mixtures thereof, and a photoinitiator.

2. The method of claim 1 wherein organic liquid is a non-reactive solvent.

3. The method of claim 1 wherein organic liquid comprises one or more non-reactive solvents selected from butyl acetate, ethyl acetate, isopropanol, xylene, toluene, acetone, and methyl ethyl ketone.

4. The method of claim 1 wherein organic liquid comprises one or more chemicals selected from mono-, di-, tri-, and tetra-functional ethylenically unsaturated monomers and oligomers.

5. The method of claim 1 wherein organic liquid comprises one or more chemicals selected from (meth)acrylic monomers and oligomers.

6. The method of claim 1 wherein the organic liquid comprises one or more chemicals selected from nitrocellulose, cellulose acetate proprionate, and cellulose acetate butyrate.

7. The method of claim 1 wherein the organic liquid comprises ethyl acetate, butyl acetate, and nitrocellulose.

8. The method of claim 1 wherein the organic liquid comprises nitrocellulose, and one or more solvents selected from the group consisting of from butyl acetate, ethyl acetate, isopropanol, xylene, toluene, acetone, and methyl ethyl ketone.

9. The method of claim 1 wherein the organic liquid comprises ethyl acetate, isopropyl alcohol, and nitrocellulose.

10. The method of claim 1 wherein the gel composition comprises a mono-, di-, tri-, or tetra-functional acrylic or methacrylic monomer.

11. The method of claim 1 wherein the gel composition comprises a polyfunctional polyurethane (meth)acrylate oligomer.

12. The method of claim 1 wherein the gel composition comprises monomer selected from hydroxyethyl (meth)acrylate, hydroxypropyl (meth)acrylate, trimethylolpropane tri (meth)acrylate, and isobornyl (meth)acrylate.

13. The method of claim 1 wherein the gel composition comprises aliphatic polyester based urethane diacrylate oligomer.

14. The method of claim 1 wherein the pigment is selected from the group consisting of pigments listed on the FDA color additives website or Annex IV of the Cosmetic Directive 76/768/EEC, Coloring Agents Permitted in Cosmetics.

15. The method of claim 1 wherein the artificial nail gel comprising the pigment concentrate has a viscosity of below 25 poise.

16. The method of claim 1 wherein a photoinitiator is added to the polyfunctional acrylic monomer or oligomer before blending with the pigment concentrate.

17. The method of claim 1 wherein a gel comprising the polyfunctional acrylic monomer and/or oligomer are sold separately from the pigment concentrate.

18. A method of adorning natural or artificial nails comprising applying a composition prepared by the method of claim 1 to a fingernail or toenail followed by curing under UV light.

19. The method of claim 1 wherein the ratio by weight of pigment concentrate to radiation-curable nail gel composition is preferably equal to or less than 1:

2.

20. An artificial nail gel composition prepared by the process of claim 1.

21. An artificial nail prepared by curing under actinic radiation a composition of claim 17.