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US 5,330,750 AGranted
Nail lacquers
AssigneeThe Boots Company PLC
InventorsChristine Sheard, Julia E. Fisher
Life of this patent
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Abstract
A nail lacquer composition which comprises 0.05 to 10% by weight of crystalline inorganic fibers having an aspect ratio of at least 2:1 is described. Preferred inorganic fibers are calcium salts such as calcium metasilicate and calcium sulphate. The use of such fibers has been found to give nail lacquer compositions with excellent wear and adhesion properties.
Claims18
A nail lacquer composition which comprises film former, solvent and 0.05 to 10% by weight of crystalline calcium sulphate fibers having an aspect ratio of at least 2:1.
A nail lacquer composition which comprises
- a) 0.05 to 10% by weight of calcium sulphate fibers having an aspect ratio of at least 2:1;
- b) at least one film former selected from the group consisting of 8 to 30% by weight of nitrocellulose and 12 to 55% by weight of acrylic acid ester;
- c) 10 to 60% by weight of solvent selected from the group consisting of acetone, diacetone alcohol, ethyl acetate, butyl acetate, toluene and isopropyl alcohol;
- d) 0.05 to 5% by weight of colloidal clay suspending agent;
- e) 2 to 20% by weight of resin selected from the group consisting of aryl sulphonamideformaldehyde, acrylic and polyester resins;
- and
- f) 2 to 12% by weight of plasticizer selected from the group consisting of castor oil and dibutyl phthalate.
4 more elements
Dependencies are inferred from the claim text.