Sunscreen compositions containing a discontinuous oil phase dispersed in a continuous water phase, at least 10% by weight of an organic UV-filter, a water-insoluble, C2-C8, liquid silicone, a branched fatty acid ester of a polyprotic carboxylic acid; and at least 2% by weight of a mineral particulat
Sunscreen compositions containing a discontinuous oil phase dispersed in a continuous water phase, at least 10% by weight of an organic UV-filter, a water-insoluble, C2-C8, liquid silicone, a branched fatty acid ester of a polyprotic carboxylic acid; and at least 2% by weight of a mineral particulate having a starch coating applied to the surface thereof.
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1. A composition, comprising: a continuous water phase,a discontinuous oil phase dispersed in said continuous water phase,about 10 percent or more by weight of an organic UV-filter,a water-insoluble, C2-C8, liquid silicone,a branched fatty acid ester of a polyprotic carboxylic acid; andabout 2 perce
1. A composition, comprising: a continuous water phase,a discontinuous oil phase dispersed in said continuous water phase,about 10 percent or more by weight of an organic UV-filter,a water-insoluble, C2-C8, liquid silicone,a branched fatty acid ester of a polyprotic carboxylic acid; andabout 2 percent or more by weight of a mineral particulate, said mineral particulate comprising a mineral portion and a starch coating portion applied to the surface of said mineral portion so as to at least partially coat the mineral portion. 2. The composition of claim 1, wherein said mineral portion comprises silica. 3. The composition of claim 1, wherein said mineral particulate comprises from about 80 percent to about 98 percent by weight of said mineral portion and from about 2 percent to about 20 percent by weight of said starch coating portion. 4. The composition of claim 1 comprising from about 4 percent to about 10 percent by weight of said mineral particulate. 5. The composition of claim 1, wherein said branched fatty acid ester of a polyprotic carboxylic acid comprises an octyldodecyl citrate polyester. 6. The composition of claim 1, wherein said water-insoluble, C2-C8 liquid silicone comprises ethyl methicone. 7. The composition of claim 1, wherein said mineral particulate has a mineral oil absorption capacity of about 20 ml/100 g or greater. 8. The composition of claim 1, wherein said organic UV-filter is selected from the group consisting of octocrylene, a benzotriazole, anisotriazine, an ester of salicylic acid, an ester of cinnamic acid, 1-(4′-tert.butylphenyl)-3-(4′-methoxyphenyl)propane-1, 3-dione, 4-tert-butyl-4′-methoxydibenzoylmethane and 1-phenyl-3-(4′-isopropylphenyl)-propane-1, 3-dione. 9. The composition of claim 4 wherein said mineral particulate comprises a silica having a rice starch applied to the coating thereof, and wherein said composition further comprises a gelling agent. 10. The composition of claim 9 having a stability of 3 months at 40° C. 11. The composition of claim 1 having a stability of 2 weeks at 40° C.
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이 특허에 인용된 특허 (6)
Curtis Ernest S. ; Kalafsky Robert ; Kaplan Elinor R., Method of treating the skin with organic acids in anhydrous microsphere delivery systems.
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