A - Human Necessities – 61 – Q
Patent
A - Human Necessities
61
Q
A61Q 19/04 (2006.01)
Patent
CA 2239665
A composition is provided which is useful for self-tanning skin coloring and is characterized by improved stability which comprises from about 0.5% to about 20.0% by weight based on total weight of said composition of a self-tanning skin coloring agent subject to chemical instability which is preferably dihydroxyacetone; from about 2.0% to about 40.0% by weight of a polyethoxyglycol which is preferably ethoxydiglycol; and from about 0.1% to about 15.0% by weight of a polyol comprising a polyhydric compound having at least three hydroxyl groups and at least three carbon atoms which is preferably D-sorbitol. The self-tanning composition may further optionally contain from about 0.1% to about 8.0% by weight of a water soluble dihydroxyl compound having at least two and up to eight carbon atoms which is preferably ethylene glycol; and the self-tanning composition may still further optionally contain an acidifying agent in amount sufficient to maintain the pH of said total composition at from about 3.5 to about 4.5 which is preferably sorbic acid. Cosmetologic products and methods of tanning are also provided.
Divulgation d'une composition utile pour colorer la peau par autobronzage, caractérisée par une stabilité améliorée, qui comprend entre environ 0,5 et environ 20 % en poids en fonction du poids total de la composition en question d'un agent colorant la peau par autobronzage sujet à l'instabilité chimique qui est de préférence la dihydroxyacétone; d'environ 2,0 à environ 40 % en poids d'un polyéthoxyglycol qui est de préférence un éthoxydiglycol; et d'environ 0,1 à environ 15 % en poids d'un polyol comprenant un composé polydrique, ayant au moins trois groupements hydroxyles et au moins trois atomes de carbone, qui est de préférence le D-sorbitol. La composition autobronzante peut facultativement contenir entre environ 0,1 et environ 8 % en poids d'un composé hydrosoluble à base de dihydroxyle ayant au moins deux et au plus huit atomes de carbone, qui est de préférence l'éthylène glycol; et la composition autobronzante peut aussi facultativement comprendre un agent acidifiant dans une quantité suffisante pour maintenir le pH de la composition en question entre environ 3,5 et environ 4,5, qui est de préférence l'acide ascorbique. Les produits cosmétologiques et les méthodes de bronzage sont également fournis.
Scott John Alexander
Stroud Eric Matthew
Pfizer Products Inc.
Schering-Plough Healthcare Products Inc.
Smart & Biggar
LandOfFree
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