Charcoal adhesive composition for lashes or lash extensions

Patent metadata

Field	Value
Publication number	US-12351740-B2
Application number	US-202117562520-A
Country	US
Kind code	B2
Filing date	Dec 27, 2021
Priority date	Sep 30, 2019
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

Provided are adhesive compositions that include an acrylate component and a charcoal component. The adhesive compositions are useful for adhering articles, for example, lashes or lash extensions to surfaces such as skin.

First claim

What is claimed is:

1. A kit, comprising:
a plurality of lash extensions for application at an underside of natural eyelashes of an eye;
an adhesive composition for application to the underside of the natural eyelashes, wherein the adhesive composition comprises:
an acrylate component; and
a charcoal component comprising activated charcoal, acid washed activated charcoal, high purity activated charcoal, impregnated charcoal, pharmaceutical grade activated charcoal, acid-washed granular activated charcoal made from coconut shell, or combinations thereof;

a container configured to store the adhesive composition; and
an applicator configured to apply the adhesive composition stored in the container to the underside of the natural eyelashes of the eye.

2. The kit of claim 1 , wherein the container comprises an opening that is configured to receive the applicator, the container further configured to store at least a part of the applicator within the container in contact with the adhesive composition.

3. The kit of claim 1 , wherein the applicator comprises a dispensing unit configured to apply the adhesive composition to at least one surface selected from the group consisting of the natural eyelashes, the plurality of lash extensions and combinations thereof.

4. The kit of claim 1 , wherein the adhesive composition comprises the acrylate component in an amount of about 10 percent by weight (wt %) to about 90 wt % based on a total weight of the adhesive composition.

5. The kit of claim 1 , wherein the acrylate component further comprises an acrylate, polyacrylate, acrylamide polymer, alkyl acrylate, (meth)acrylate, acrylic acid, (meth)acrylic acid, acrylamide, (meth)acrylamide polymer, polymethacrylate, polymethylmethacrylate, C 1-6 hydroxyalkyl (meth)acrylate, C 1-6 alkoxy C 1-6 alkyl (meth)acrylates, polyoxyalkylene (meth)acrylate, C 1-6 alkylpolyoxyalkylene (meth)acrylate, C 8-22 alkyl (meth)acrylate, methyl(meth)acrylate, ethyl(meth)acrylate, propyl(meth)acrylate, butyl(meth)acrylate, isobutyl(meth)acrylate, pentyl(meth)acrylate, hexyl(meth)acrylate, 2-hydroxyethyl(meth)acrylate, 2-methoxyethyl(meth)acrylate, polyethyleneglycol (meth)acrylate, polyethyleneglycol methyl ether (meth)acrylate, polyethyleneglycol ethyl ether (meth)acrylate, octyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, lauryl(meth)acrylate, stearyl(meth)acrylate, 2-ethylhexyl acrylate, copolymers thereof, quaternary salts thereof, ethylhexyl acrylate copolymer, ethylhexyl acrylate and acrylate copolymer, acrylate/ammonium methacrylate copolymer, acrylate/C 12-22 alkylmethacrylate copolymer, styrene/acrylate copolymer, acrylamide/acryloyldimethyltaurate copolymer, potassium acrylate/C 10-30 alkyl acrylate crosspolymer, sodium acrylate/C 10-30 alkyl acrylate crosspolymer, aminomethylpropanol-acrylate copolymer, glyceryl acrylate/acrylic acid copolymer, hydroxyethylacrylate/sodium acryloyldimethyl tau rate copolymer, sodium hydroxyethylacrylate/acryloyldimethyl taurate copolymer, styrene/acrylates/ammonium methacrylate copolymer, sodium polyacrylate, sodium polyacrylate starches, polyglyceryl methacrylates, ammonium acryloyldimethyltaurate/VP copolymer, or combinations thereof.

6. The kit of claim 1 , wherein the charcoal component comprises a carbonaceous material derived from wood, bamboo, hardwood, peat, coal, coke, petroleum, bones, coconut shells, nutshells, coir, lignite or combinations thereof.

7. The kit of claim 1 , wherein the adhesive composition comprises the charcoal component in an amount of about 0.001 wt % to about 5 wt % based on a total weight of the adhesive composition.

8. The kit of claim 1 , wherein the charcoal component comprises a plurality of units comprising powder, particles, granules, extrudates, pellets or combinations thereof.

9. The kit of claim 1 , wherein the charcoal component comprises a plurality of units comprising a unit size of less than about 1 mm or comprising a mean unit size of about 1 mm.

10. The kit of claim 1 , wherein the adhesive composition further comprises water in an amount of about 1 wt % to about 90 wt % based on a total weight of the adhesive composition.

11. The kit of claim 1 , wherein the adhesive composition further comprises a colorant, wherein the colorant comprises carbon black, azo dye, quinophthalone dye, triphenylmethane dye, xanthene dye, iron oxide, iron hydroxide, titanium dioxide, sunset yellow dye, allura red dye, amaranth dye, koki neil red dye, azogeranin dye, tartrazine dye, brilliant black dye, canthaxanthin dye, patent blue dye, fast green dye, brilliant blue dye, acid green dye, erythrosine dye, quinoline yellow, indigotin, curcumin or combinations thereof.

12. The kit of claim 1 , wherein the adhesive composition further comprises a preservative, wherein the preservative comprises phenoxyethanol, benzalkonium chloride, sodium dehydroacetate, benzyl alcohol, phenethyl alcohol, phenoxyethanol, esters of p-hydroxybenzoic acid, imidazolidinyl urea, diazolidinyl urea, carboxylic acids or combinations thereof.

13. The kit of claim 1 , wherein the adhesive composition is free of a cyanoacrylate, latex, a formaldehyde or any combination thereof.

14. The kit of claim 1 , wherein the adhesive composition further comprises water, a colorant and a preservative, wherein the acrylate component is in an amount of about 45 wt % to about 55 wt %, the charcoal component is in an amount of about 0.001 wt % to about 2 wt %, the water is in an amount of about 40 wt % to about 50 wt %, and the colorant is in an amount of about 1 wt % to about 4 wt % and the preservative is in an amount of about 0.01 wt % to about 1.0 wt %.

15. The kit of claim 1 , wherein the container comprises a collar that defines an opening configured to receive the applicator.

16. The kit of claim 1 , wherein the plurality of lash extensions comprises natural human or animal hair or artificial hair.

17. A kit, comprising:
a plurality of lash extensions for application at an underside of natural eyelashes of an eye;
an adhesive composition pre-attached to a topside of the plurality of lash extensions, wherein the adhesive composition is pre-attached for application of the plurality of lash extensions to the underside of the natural eyelashes, the adhesive composition comprising:
an acrylate component; and
a charcoal component comprising activated charcoal, acid washed activated charcoal, high purity activated charcoal, impregnated charcoal, pharmaceutical grade activated charcoal, acid-washed granular activated charcoal made from coconut shell, or combinations thereof; and

a container configured to store the plurality of lash extensions having the adhesive composition attached thereto.

18. The kit of claim 17 , wherein the container is airtight.

19. The kit of claim 1 , wherein the adhesive composition further comprises a water-soluble vitamin.

20. The kit of claim 19 , wherein the water-soluble vitamin comprises thiamin, riboflavin, niacin, vitamin B6, folate, methylcobalamin, biotin, pantothenic acid, derivatives thereof, or combinations of any two or more thereof.

21. The kit of claim 1 , wherein each of the plurality of lash extensions comprise about 3 to about 30 hairs.

22. The kit of claim 1 , wherein each of the plurality of artificial lash extension has a length of about 4 mm to about 20 mm.

23. The kit of claim 1 , wherein each of the plurality of lash extensions comprises a plurality of crisscrossing hairs.

Assignees

• Lashify Inc

Inventors

• Lotti Sahara

Classifications

• A41G5/008

  by adhesives · CPC title

• A61Q1/10

  for eyes, e.g. eyeliner, mascara · CPC title

• C08K3/04

  Carbon · CPC title

• C09J2433/00

  Presence of (meth)acrylic polymer · CPC title

• A41G5/02

  Artificial eyelashes; Artificial eyebrows · CPC title