Thermochromic/photochromic cosmetic compositions
First Claim
1. A reversible cosmetic composition comprising:
- a water-based cosmetically acceptable carrier;
a photochromic composition dispersed within the carrier, the photochromic composition having a concentration of 10–
30% by weight of the reversible cosmetic composition;
a fixed color dye dispersed within the carrier and located exterior to the dispersed photochromic composition, the fixed color dye having a concentration of 5–
25% by weight of the reversible cosmetic composition;
a light stabilizer dispersed within the carrier, the light stabilizer having a concentration of 3–
4% by weight of the reversible cosmetic composition;
a bactericide dispersed within the carrier; and
wherein the reversible cosmetic composition has a pH in the range of about 6.8 to 7.2.
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Accused Products
Abstract
Novel thermochromic and/or photochromic compositions are described. The thermochromic compositions include a thermoset resin, fatty substance, water, and dye, while photochromic compositions include a benzene derivative and a binder, such as silica gel. When mixed, the ingredients of the thermochromic and photochromic compositions form chromic cells with an outer shell comprised of either the thermoset resin (in the case of thermochromic compositions) or potassium nitrate (in the case of photochromic compositions). When the chromic compositions are exposed to either a heat or light stimulus, the chromic cells compress to causing the dye within the cells to no longer be visible, thereby creating a color-changing effect.
37 Citations
20 Claims
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1. A reversible cosmetic composition comprising:
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a water-based cosmetically acceptable carrier; a photochromic composition dispersed within the carrier, the photochromic composition having a concentration of 10–
30% by weight of the reversible cosmetic composition;a fixed color dye dispersed within the carrier and located exterior to the dispersed photochromic composition, the fixed color dye having a concentration of 5–
25% by weight of the reversible cosmetic composition;a light stabilizer dispersed within the carrier, the light stabilizer having a concentration of 3–
4% by weight of the reversible cosmetic composition;a bactericide dispersed within the carrier; and wherein the reversible cosmetic composition has a pH in the range of about 6.8 to 7.2. - View Dependent Claims (2, 3)
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4. A reversible cosmetic composition comprising:
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a water-based cosmetically acceptable carrier; a photochromic composition dispersed within the carrier; and a fixed color dye dispersed within the carrier and located exterior to the dispersed photochromic composition. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A reversible cosmetic composition comprising:
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a water-based cosmetically acceptable carrier; a thermochromic composition dispersed within the carrier; a photochromic composition dispersed within the carrier, the photochromic and thermochromic compositions having a combined concentration of 10–
30% by weight of the reversible cosmetic composition;a fixed color dye dispersed within the carrier and located exterior to the dispersed photochromic and thermochromic compositions, the fixed color dye having a concentration of 5–
25% by weight of the reversible cosmetic composition;light stabilizer dispersed within the carrier, the light stabilizer having a concentration of 3–
4% by weight of the reversible cosmetic composition;a bactericide dispersed within the carrier; and wherein the reversible cosmetic composition has a pH in the range of about 6.8 to 7.2. - View Dependent Claims (12, 13, 14)
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15. A reversible cosmetic composition comprising:
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a water-based cosmetically acceptable carrier; a thermochromic composition dispersed within the carrier; a photochromic composition dispersed within the carrier; and a fixed color dye dispersed within the carrier and located exterior to the dispersed photochromic and thermochromic compositions. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification