Polymeric Materials for Nail Extensions

Artificial nail with segmented structure that balances comfort and hardness, and provides greater styling freedom compared to conventional integral nails. The artificial nail has a base section with lower hardness to reduce foreign body sensation when attached to natural nails. A separate styling section with higher hardness is joined to the base for shaping the front end. This allows customization of nail length and shape while maintaining comfort. The segmented design also enables mixing and matching bases and styling sections with different sizes and shapes.

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Artificial nail with segmented structure that allows shaping at the front end for a more customized and comfortable fit. The artificial nail has a soft base that sticks to the natural nail and a separate hard modeling part for the front end. The base is light-curable and malleable before use. The hard modeling part engages the front of the base during use to shape it. This allows shaping the front end of the artificial nail separately from the base. The segmented design provides flexibility for shaping the artificial nail to match the natural nail better and avoids the need to remove the natural nail beyond the fingertip.

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Artificial nail design with enhanced adhesion and shape retention when attached to a natural nail. The artificial nail has an adhesive surface with a pattern of protrusions that vary in height along the length or width. This pattern improves adhesion and prevents separation between the natural and artificial nails. The protrusions also provide a guide for the natural nail to follow during growth to maintain proper alignment. The artificial nail can have a flexible bend along its center line. The nail can be made of materials like acrylonitrile butadiene styrene, polyurethane, acrylic, polypropylene, or polyethylene. The adhesion pattern section along the horizontal direction consists of polygons, ellipses, or circles. The protrusion height gradually decreases along the length or width.

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Artificial nails that are strongly bonded to natural nails and have improved durability and resistance to damage. The artificial nails have a unique protruding structure connecting the adhesive part to the nail extension. The adhesive part has vertical and horizontal protrusions that intersect in a mesh shape. This provides rigidity and prevents separation between the nail and artificial nail. The extension part has protrusions extending into the adhesive area. This transfers impact force into the nail rather than the extension. The nails also have radial reinforcement lines extending from the adhesive area to the extension. This prevents delamination between the natural nail and artificial nail. The protruding structures and reinforcement lines provide a strong bond and prevent lifting or detachment of the artificial nails.

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Artificial nail with improved durability and adhesion. The artificial nail has a vertical protrusion structure connecting the cuticle adhesive layer to the nail center, and a horizontal protrusion structure connecting the center adhesive to the nail extension. These protrusions create a mesh pattern for rigidity. Radial protrusions widen towards the outside. This maximizes rigidity while maintaining shape. Additionally, adhesive solution grooves can be added at the nail edges for better adhesion.

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An artificial nail that can simplify operation steps compared to sculpture nails or gel nails. The artificial nail has a biomass plastic composition that allows closer adhesion to the natural nail. It is formed along the natural nail shape and can be buffed or coated after adhesion. The nail also has a biomass plastic composition that prevents damage to designs when filed. The nails are arranged in order of size from largest to smallest to better fit various nail sizes. This allows consumers to find the right size without trimming. The biomass plastic composition contains materials like polylactic acid mixed with other low toxicity elastomers.

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Artificial nails that can be applied quickly and easily to natural nails without the need for professional equipment or curing. The nails are made from a specific plastic composition, such as an acrylonitrile-butadiene-styrene copolymer (ABS) with 5-30% butadiene, 15-35% acrylonitrile, and 40-60% styrene. This plastic provides a better bond to the natural nail compared to traditional hard plastics. A suitable adhesive is also provided with components like 2-cyanoacrylic acid ethyl ester, polymethyl methacrylate, butyl hydroxyanisole, and calcium 3-hydroxy-4-(4-methyl-2-sulfonatophenyl) azo-2-naphthoate. The ad

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Flexible artificial nail with reinforcing function to provide stability and prevent detachment. The nail has rounded grooves on the edge that conform to the natural nail shape. It also has hemispherical grooves with varying diameters at the center, root, and edge. This allows the nail to flex with the natural nail contours while maintaining bond strength. The center groove is larger, the root groove is larger than the edge groove, and the edge groove is smallest. This progressive size reduction prevents separation at the edge. The nail also has a thin center and thick root section. The top is designed for decoration and the bottom has adhesive.

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Curable gel nail composition, gel nail base layer, gel nail, and gel nail composition set that suppress floating and delamination of gel nails over time. The gel nail composition has a moisture permeability of 33% or less in the cured coating film. This prevents water vaporization from the nail from accumulating and causing floating. The composition contains a urethane (meth) acrylate as a main component, along with a monofunctional or polyfunctional monomer. This provides a crosslinked coating film with reduced water permeability.

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Flexible artificial fingernail that can better conform to the natural nail shape in both width and length directions. The artificial nail has a plate-shaped upper surface with the design area matching the natural nail. The bottom surface has an auxiliary part that smoothly transitions from the nail tip to the end. Grooves along the root of the natural nail and a wider groove connect the auxiliary part to the nail. This elastic section allows the nail to flex and stick securely to the natural nail without gaps.

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Artificial nail design that prevents foreign objects from getting caught between the nail and the adhesive and falling off. The nail has a prevention part around the outer circumference of the adhesive that stops debris from entering the gap. This prevents foreign matter from getting caught and breaking the adhesion. The prevention part can be made of elastomeric materials like urethane, TPE, or TPEE with a hardness range of 20-90 Shore A or D.

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Artificial nail with a multi-layer structure to prevent breakage and skin damage from external impacts. The nail has a rigid base layer shaped like a natural nail, surrounded by an elastic layer. The elastic layer absorbs impact forces and deforms instead of the nail breaking. The coating layer protects the nail from chemicals. The elastic layer can be made of materials like urethane, TPE, or TPEE. The hardness of the elastic layer is 20-90 Shore A or 25-90 Shore D.

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A false nail with a back layer that rapidly dries and repels water to improve adhesion and prevent moisture buildup compared to existing false nails. The back layer is made of a fast drying, dehumidifying polymeric adhesive. The front layer is a micro or nanohybrid composite that can be tinted. This allows a more natural looking false nail with better adhesion and durability compared to gel or acrylic nails. The rapid drying back layer prevents moisture buildup and improves adhesion compared to gels. The front layer can be tinted for a more natural appearance.

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Artificial nail composition with improved appearance and durability. The composition contains a root polymerization with saturated double bonds, a root polymerization initiator, light absorbing/scattering colorants, and holes for light transmission. The composition allows move with anti-skid outward appearance while maintaining transparent color. It uses a special polymerization process to achieve this. The composition is coated onto natural or artificial nails to improve adhesion and durability.

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Flexible artificial nails that can be customized to match the natural shape of a person's fingernails. The artificial nails have a matrix part that conforms to the natural nail shape and a flexible free edge part that extends beyond the matrix. The matrix part is made of a first material that bends to match the natural nail curvature, while the free edge part is made of a second material that is more flexible. This allows the artificial nail to bend and flex like a natural nail. The two-part design provides flexibility and conformability to the natural nail shape.

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Flexible artificial nail design with improved durability and comfort compared to conventional flexible nails. The nail has a concave area on one side that contacts the natural nail. The concave area is formed between a convex upper surface and the inner side of the nail. This provides flexibility while reducing glue area compared to conventional nails. The concave area also allows better adhesion and prevents cracking at the nail edge. The nail has multiple independent lugs along the nail length for gluing. The lugs have U-shaped or transitioned borders. The lugs can have different shapes based on preference. The lugs are on the same plane as the nail side. The concave area and lugs provide flexibility, better adhesion, and reduced stress compared to smooth artificial nails.

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Artificially extending nails using translucent curable gels that become translucent after curing. The method involves applying a translucent gel layer over the nail and onto a supporting surface to extend the nail. The translucent gel allows creating translucent parts in the artificial nail extension. This provides more options for customizing the appearance of the extended nail compared to using opaque gels. The translucent gel is cured under UV light to set. After curing, the supporting surface is removed to reveal the translucent extended nail.

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Multi-layered artificial nails with improved adhesion, durability, and ease of removal compared to conventional injection molded nails. The multi-layer structure has decreasing hardness from the back to front. This matches natural nail curvature and allows the front to flex without bending. The rear section is softer to absorb impact. The layering prevents delamination and prolongs wear. Removal is faster due to the rear adhesive melting first.

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Multi-layered artificial nails that match natural nail curvature, have improved adhesion, and allow easier removal compared to traditional single-material nails. The nails have a lower hardness rear section and gradually increasing hardness towards the front. This allows the softer rear to conform to the nail bed and reduces wear. The multi-layer structure also enables quicker nail removal using solvents. The rear layer is made of softer material like EVA, while the front is harder ABS or EVA.

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Adaptable artificial fingernail that can fit different finger sizes and shapes. The nail has a polymer shape like a natural fingernail with a deformable material layer applied to part of the bottom surface. This layer conforms to the upper surface of natural nails when worn. The deformable material allows the artificial nail to adapt to the wearer's natural nails and finger contours, providing a better match and fit compared to standard sized nails.

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