# US 8,539,960 B2 · Flexible artificial nails and method of forming same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,539,960 B2 - Document ID: US8539960B2 - Status: Granted - Kind: B2 - Application number: 13/056,554 - Filed: 2009-07-31 - Published: 2011-08-04 - Granted: 2013-09-24 - Earliest claimed: 2008-08-01 - Assignees: Pacific World Corporation - Applicants: Jeanine Coppola; Marcelo Foglia - Inventors: Jeanine Coppola; Marcelo Foglia - Web page: https://patentgrep.com/patent/US8539960B2 ## CPC - A45D 31/00: Artificial nails - B29C 45/1675: {using exchangeable mould halves} - B29C 70/78: Moulding material on one side only of the preformed part - A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) ## Abstract A preformed artificial nail, a nail kit including such a nail, and a method of forming such a nail, the nail including a nail bed portion formed of a first material and a free edge portion having an upper portion formed of the first material and lower portion formed of a second material disposed subjacent the first material, the free edge portion being adjacent to and distal the nail bed portion, and the first material being comparatively more flexible than the second material. The lower portion of the free edge portion may include a generally uniform thickness or a varied thickness such as a wedge shape, thickening toward the distal edge of the artificial nail. ## Claims ### Claim 1 An artificial nail comprising: a preformed artificial nail adapted to substantially cover, flex and conform to an upper surface of a user's natural nail, the upper surface of the natural nail extending from a cuticle and having an oppositely disposed free edge and a natural nail bed attached at the user's finger, the artificial nail further comprising: an upper surface, a lower surface having a uniform profile along the curvature of the natural nail wherein at least a portion of the lower surface is adapted to be placed adjacent the upper surface of the user's natural nail, a proximal edge adapted to be placed substantially adjacent the user's cuticle, a distal edge opposite the proximal edge, a right edge, a left edge opposite the right edge, a nail bed portion having a proximal edge defining the proximal edge of the artificial nail, a free edge portion having a distal edge defining the distal edge of the artificial nail, the free edge portion being adjacent to and distal the nail bed portion, the free edge portion including an upper portion and a lower portion, the lower portion extending subjacent the upper portion, said artificial nail being formed of a first material and a second material, the first material being comparatively more flexible than the second material, the first material extending from the proximal edge and forming the nail bed portion and the upper portion of at least a portion of the free edge portion, the second material forming at least a portion of the lower portion of the free edge portion, the second material being disposed subjacent the first material along the free edge portion; wherein the lower portion of the free edge portion has a thickness that substantially increases from a proximal edge of the free edge portion to the distal edge of the free edge portion such that the rigidity of the free edge portion of the nail gradually increases as it approaches the distal edge. ### Claim 2 (depends on 1) The artificial nail of claim 1 wherein the first material extends substantially to the distal edge of the artificial nail, and the second material extends substantially to the distal edge of the artificial nail. ### Claim 3 (depends on 1) The artificial nail of claim 1 wherein the first material includes at least one of the following: rubber, silicone, silicone derivative, silicone elastomers, silicone-containing macromers, hydromacromers, TPU (thermo plastic urethane), TPR (thermo plastic rubber), TPE (thermo plastic elastomer), menoprene, and mixtures of the same. ### Claim 4 (depends on 1) The artificial nail of claim 1 wherein the second material includes a thermoplastic material. ### Claim 5 (depends on 4) The artificial nail of claim 4 wherein the second material includes at least one of the following: acrylonitrile butadiene styrene (ABS), polyethylene (PE), polyvinyl chloride (PVC), and polyethylene-terephthalate (PET) or combinations thereof. ### Claim 6 (depends on 1) The artificial nail of claim 1 wherein the lower portion of the free edge portion has a wedge shape. ### Claim 7 (depends on 1) The artificial nail of claim 1 wherein the first and second materials are two different colors. ### Claim 8 (depends on 1) The artificial nail of claim 1 wherein a proximal edge of the free edge portion generally follows a natural line between a user's natural nail bed and natural free edge. ### Claim 9 (depends on 1) The artificial nail of claim 1 wherein the first material is at least one of transparent or translucent. ### Claim 10 A package of artificial nails comprising: a plurality of preformed artificial nails adapted to substantially cover, flex and conform to an upper surface of a user's natural nails, the upper surface of the natural nail extending from a cuticle and having an oppositely disposed free edge and a natural nail bed attached at the user's finger, said preformed artificial nails each comprising: an upper surface, a lower surface having a uniform profile along the curvature of the natural nail wherein at least a portion of the lower surface is adapted to be placed adjacent the upper surface of the user's natural nail, a proximal edge adapted to be placed substantially adjacent the user's cuticle, a distal edge opposite the proximal edge, a right edge, a left edge opposite the right edge, a nail bed portion having a proximal edge defining the proximal edge of the artificial nail, a free edge portion having a distal edge defining the distal edge of the artificial nail, the free edge portion being adjacent to and distal the nail bed portion, the free edge portion including an upper portion and a lower portion, the lower portion extending subjacent the upper portion, said artificial nail being formed of a first material and a second material, the first material being comparatively more flexible than the second material, the first material extending substantially from the proximal edge to the distal edge of the artificial nail and forming the nail bed portion and the upper portion of the free edge portion, the second material forming the lower portion of the free edge portion and extending substantially to the distal edge of the artificial nail, the second material being disposed subjacent the first material along the free edge portion; wherein the lower portion of the free edge portion has a thickness that substantially increases from a proximal edge of the free edge portion to the distal edge of the free edge portion such that the rigidity of the free edge portion of the nail gradually increases as it approaches the distal edge. ### Claim 11 (depends on 10) The package of artificial nails of claim 10 wherein the first material includes at least one of the following: rubber, silicone, silicone derivative, silicone elastomers, silicone-containing macromers, hydromacromers, TPU (thermo plastic urethane), TPR (thermo plastic rubber), TPE (thermo plastic elastomer), menoprene, and mixtures of the same. ### Claim 12 (depends on 10) The package of artificial nails of claim 10 wherein the second material includes a thermoplastic material. ### Claim 13 (depends on 12) The package of artificial nails of claim 12 wherein the second material includes at least one of the following: acrylonitrile butadiene styrene (ABS), polyethylene (PE), polyvinyl chloride (PVC), and polyethylene-terephthalate (PET) or combinations thereof. ### Claim 14 (depends on 10) The package of artificial nails of claim 10 wherein the lower portion of the free edge portion has a wedge shape. ### Claim 15 (depends on 10) The package of artificial nails of claim 10 further comprising at least one of the following: adhesive, adhesive pads, an emery board, a manicuring stick, a cleaning pad, an application tool, and/or instruction or product information.