US RE50,629 E1
Artificial nail tip and curing composition set and applying method thereof
Wan Jou Chen, Walnut, CA (US); and Carol Ma, Hacienda Heights, CA (US)
Assigned to APPLIED LACQUER INDUSTRIES INC., City of Industry, CA (US)
Filed by APPLIED LACQUER INDUSTRIES INC., City of Industry, CA (US)
Filed on May 1, 2023, as Appl. No. 18/310,320.
Application 18/310,320 is a continuation of application No. 15/916,216, filed on Mar. 8, 2018, granted, now 11,304,492, issued on Apr. 19, 2022.
Application 18/310,320 is a reissue of application No. 16/299,103, filed on Mar. 11, 2019, granted, now 11,224,276, issued on Jan. 18, 2022.
This patent is subject to a terminal disclaimer.
Int. Cl. A45D 31/00 (2006.01); A45D 29/04 (2006.01); A45D 29/12 (2006.01); A45D 29/18 (2006.01); C09D 175/16 (2006.01); C09J 175/14 (2006.01); H10K 50/818 (2023.01); H10K 59/12 (2023.01); H10K 59/38 (2023.01); H10K 71/00 (2023.01); H10K 77/10 (2023.01)
CPC A45D 31/00 (2013.01) [A45D 29/18 (2013.01); C09D 175/16 (2013.01); C09J 175/14 (2013.01); H10K 50/818 (2023.02); H10K 59/12 (2023.02); H10K 59/38 (2023.02); H10K 71/00 (2023.02); H10K 77/10 (2023.02); A45D 29/04 (2013.01); A45D 29/12 (2013.01); A45D 2200/205 (2013.01); A45D 2200/25 (2013.01); H10K 59/1201 (2023.02)] 10 Claims
 
1. An artificial nail and curing composition set for a fingernail, comprising:
at least one artificial nail tip, the artificial nail tip being made of acrylic material and having an underside surface which can be filed into a plurality of indented grooves;
a nail filing device configured for filing the underside surface of an artificial nail tip to form a plurality of indented grooves;
an adhesive composition consisting of:
(a) 60.0 [ 75] -80.0% by weight of polyurethane acrylate oligomers;
(b) 10.0-15.0% by weight of 2-hydroxyethyl methacrylate;
(c) 1.0-5.0% by weight of 1-hydroxycyclohexyl phenyl ketone;
(d) 1.0-5.0% by weight of phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide; and
a flat brush for applying the adhesive composition to the plurality of indented grooves on the underside of an artificial nail tip and to a surface of a fingernail;
wherein curing the adhesive composition with UV light for about 2 minutes forms a bonding layer between the indented grooves on the underside of the artificial nail tip and the surface of the fingernail; and
wherein the bonding layer affixes the artificial nail tip to the surface of the fingernail for at least two weeks.