Liquid nail polish including dissolved polyamide

Details Liquid nail polish including dissolved polyamide Liquid nail polish including dissolved polyamide

A - Human Necessities

61

K

167/315

A61K 8/88 (2006.01) A61Q 3/02 (2006.01)

Patent

CA 1080627

Abstract of the Disclosure A liquid nail polish which imparts improved flexu- ral strength to the human nail and inhibits splitting when applied thereto as a coating. The nail polish formulation is characterized by the inclusion therein, as a disolved com- ponent, of a small but effective amount of a polyamide which term includes a copolyamide, e.g., a nylon polyamide such as a copolyamide of lauric lactam and caprolactam condensed with a dicarboxylic acid, with, in some instances, the further in- clusion of hexamethylene diamine, e.g., as the adipate, so that the dissolved nylon copolyamide is a terpolymer. Typi- cally, the polyamide is first dissolved in a solvent, e.g., a liquid chlorinated hydrocarbon and/or lower aliphatic alcohol, and this liquid solution is added in a small quantity to a stock liquid nail polish formulation so that a final formula- tion containing a small but effective amount of dissolved polyamide is produced, e.g., a formulation containing in the range of about 0.001% to 0.1% by weight of dissolved polya- mide. -1-

270890

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