Cosmetic powder treated with polysaccharide and methods of making the same
AssigneeMiyoshi America, Inc.
InventorShoji Takekawa
Life of this patent
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Abstract
The present disclosure relates generally to cosmetic powders in which the powders are surface modified with at least one polysaccharide, or salt forms thereof. The powders may be used in cosmetic compositions such as a powder foundation, liquid foundation, point makeup, lip, mascara, eyeliner, skin care products which are skin cream, hair care products which are shampoo, conditioner, treatment and hair styling products, hair color products, cleansing products which are a body soap, hand soap and facial cleanser.
Claims19
A powder comprising at least one cosmetic powder in which the surface of at least one cosmetic powder is chemically modified with at least one polysaccharide, and salt forms and mixtures thereof, wherein the at least one polysaccharide is chemically immobilized on the surface of at least one powder, and wherein the powder exhibits improved washability, when compared to untreated powder, when the at least one cosmetic powder is chemically modified with as little as 0.25% of polysaccharide.
A method of making a surface-modified cosmetic powder comprising:
- (a) preparing an aqueous solution of at least one polysaccharide, and salt forms and mixtures thereof;
- (b) adding to the aqueous solution at least one cosmetic powder with agitation to uniformly disperse the powder in the aqueous mixture;
- and
- (c) adding a metal-containing salt to neutralize the aqueous mixture and immobilize the at least one polysaccharide on the surface of the at least one cosmetic powder.
A cosmetic composition comprising:
- (a) at least one cosmetic powder in which the surface of at least one cosmetic powder is chemically modified with at least one polysaccharide, and salt forms and mixtures thereof, wherein the polysaccharide is chemically immobilized on the surface of at least one powder;
- and
- (b) a cosmetically acceptable carrier.
Dependencies are inferred from the claim text.