Easily appliable, storage stable, radiation-curable, pigmented, artificial nail gel coatings
First Claim
1. A shelf stable, pigment containing, UV-curable, low viscosity nail gel coating composition useful for adornment of natural and artificial nails and artificial nail extensions comprising:
- a pigment or mixture of pigments, reactive monomers selected from one or more ethylenically unsaturated monomers, and one or more ethylenically unsaturated oligomers, or mixtures thereof, a photoinitiator, and one or more thixotropic additives with the gel having a low shear viscosity greater than 30 poise, and high shear viscosity less than 50 poise, with-the differential between low and high shear viscosity being a minimum ratio of 2.
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Abstract
Limited shelf life due to pigment settling and the formation of hard packs in pigmented UV curable nail gels is solved by the present invention which describes a composition, method, and use of a UV curable, thixotropic, radiation curable, low viscosity gel comprised of a formulation containing thixotropic additive(s) and in some cases dispersants for additional dispersion stability. The thixotropic pigmented gel has prolonged shelf life and long time storage at ambient conditions. It also contains negligible amounts of unreactive solvent. The thixotropic additive also changes the rheological properties of the gel, which allows the nail gel to be easily applied to nails at a lower viscosity due to shear thinning.
9 Citations
31 Claims
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1. A shelf stable, pigment containing, UV-curable, low viscosity nail gel coating composition useful for adornment of natural and artificial nails and artificial nail extensions comprising:
- a pigment or mixture of pigments, reactive monomers selected from one or more ethylenically unsaturated monomers, and one or more ethylenically unsaturated oligomers, or mixtures thereof, a photoinitiator, and one or more thixotropic additives with the gel having a low shear viscosity greater than 30 poise, and high shear viscosity less than 50 poise, with-the differential between low and high shear viscosity being a minimum ratio of 2.
- View Dependent Claims (2, 26, 27, 28, 29, 30, 31, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A shelf stable, pigment containing, UV-curable, low viscosity nail get coating composition useful for adornment of natural and artificial nails and artificial nail extensions comprising:
- a pigment or mixture of pigments, reactive monomers selected from one or more ethylenically unsaturated monomers, and one or more ethylenically unsaturated oligomers, or mixtures thereof, a photoinitiator, and one or more thixotropic additives, with the gel having a high shear viscosity less than 50 poise and a viscosity reduction of at least a factor of 2.0 over the range of shear from when the sample is at rest to that encountered under use conditions.
Specification