Superabsorbent polymers and sunscreen actives for use in skin care compositions
First Claim
1. A skin care composition comprising:
- a) about 0.01% to about 5% of an superabsorbent polymer, whereini) the superabsorbent polymer is selected from the group consisting of sodium polyacrylate, sodium polyacrylate starch, sodium acrylates crosspolymer-2 and mixtures thereof and a portion of the superabsorbent polymer comprises a grafted starch material,ii) the superabsorbent polymer is provided as superabsorbent particles that have an average particle size in the range of about 5-30 μ
m,iii) the individual superabsorbent particles in their dry or un-swollen condition are substantially non-spherical, flat, platelet, or elongated in shape, andiv) the superabsorbent particles have an absorption capacity of at least about 1000 times their initial dry or un-swollen volume;
b) about 0.01% to about 10% of a dry starch or silicone powder coated with a silicone material;
c) about 1% to about 30% of a UV active selected from a group consisting of avobenzone, cinoxate, dioxybenzone, homosalate, menthyl anthranilate, octyl salicylate, oxybenzone, padimate O, phenylbenzimidazole sulfonic acid, sulisobenzone, trolamine salicylate, titanium dioxide, zinc oxide, diethanolamine methoxycinnamate, digalloy trioleate, ethyl dihydroxypropyl PABA, glyceryl aminobenzoate, lawsone with dihydroxyacetone, red petrolatum, ethylhexyl triazone, dioctyl butamido triazone, benzylidene malonate polysiloxane, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, diethylamino hydroxybenzoyl hexyl benzoate, bis diethylamino hydroxybenzoyl benzoate, bis benzoxazoylphenyl ethylhexylimino triazine, drometrizole trisiloxane, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyltriazine, 4-methylbenzylidenecamphor, isopentyl 4-methoxycinnamate and combinations thereof; and
d) about 20% to about 98% water.
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Abstract
A skin care composition having from about 0.01% to about 5%, by weight, of an superabsorbent polymer which is a sodium polyacrylate, sodium polacrylate starch, sodium acrylates crosspolymer-2 or mixtures of these and a portion of the polymer comprises a grafted starch material. The superabsorbent polymer is particulate where the particles have an average particle size in the range of from about 5μ-30μ, and the individual particles in their dry or un-swollen condition are substantially non-spherical, flat, platelet, or elongated in shape. The particles have an absorption capacity of at least about 1000 times their initial dry or un-swollen volume. Additionally, the skin care composition contains from about 0.01-10% of a dry powder that is either starch or silicone based and wherein the dry powder is coated with a silicone based material. Further there is provided a UV active.
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Citations
18 Claims
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1. A skin care composition comprising:
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a) about 0.01% to about 5% of an superabsorbent polymer, wherein i) the superabsorbent polymer is selected from the group consisting of sodium polyacrylate, sodium polyacrylate starch, sodium acrylates crosspolymer-2 and mixtures thereof and a portion of the superabsorbent polymer comprises a grafted starch material, ii) the superabsorbent polymer is provided as superabsorbent particles that have an average particle size in the range of about 5-30 μ
m,iii) the individual superabsorbent particles in their dry or un-swollen condition are substantially non-spherical, flat, platelet, or elongated in shape, and iv) the superabsorbent particles have an absorption capacity of at least about 1000 times their initial dry or un-swollen volume; b) about 0.01% to about 10% of a dry starch or silicone powder coated with a silicone material; c) about 1% to about 30% of a UV active selected from a group consisting of avobenzone, cinoxate, dioxybenzone, homosalate, menthyl anthranilate, octyl salicylate, oxybenzone, padimate O, phenylbenzimidazole sulfonic acid, sulisobenzone, trolamine salicylate, titanium dioxide, zinc oxide, diethanolamine methoxycinnamate, digalloy trioleate, ethyl dihydroxypropyl PABA, glyceryl aminobenzoate, lawsone with dihydroxyacetone, red petrolatum, ethylhexyl triazone, dioctyl butamido triazone, benzylidene malonate polysiloxane, terephthalylidene dicamphor sulfonic acid, disodium phenyl dibenzimidazole tetrasulfonate, diethylamino hydroxybenzoyl hexyl benzoate, bis diethylamino hydroxybenzoyl benzoate, bis benzoxazoylphenyl ethylhexylimino triazine, drometrizole trisiloxane, methylene bis-benzotriazolyl tetramethylbutylphenol, and bis-ethylhexyloxyphenol methoxyphenyltriazine, 4-methylbenzylidenecamphor, isopentyl 4-methoxycinnamate and combinations thereof; and d) about 20% to about 98% water. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification