Patent ID: 9044624
Filing Date: 2015-06-02
Classification: A61K,A61Q

Abstract:
1. A sunscreen composition comprising: (a) 0.3-30 weight percent of said sunscreen composition of a surfactant, said surfactant selected from the group consisting of: (b) 0.10-95 weight percent of said sunscreen composition of water; (c) 0.5-80 weight percent of said sunscreen composition of an oil component; and (d) 0.3-15 weight percent of said sunscreen composition of a water soluble ultraviolet absorbent and/or an oil soluble ultraviolet absorbent; wherein said (a) to (d) interact and are in a bicontinuous microemutsion phase at 25° C.; and wherein said surfactant is one or more selected from the group consisting of imidazolium betaine, POE (2.5) sodium lauryl ether sulfate, POE (8) glyceryl monostearate, POE (3) sodium lauryl ether sulfate, cocamidopropyl betaine, POE (3) sodium palmityl ether sulfate, POE (2) sodium lauryl ether sulfate, POE (3) sodium lauryl ether sulfate, phytantriol, and glyceryl monostearate; said oil component is either octyl octanoate, nonyl nonanoate, dimethylpolysiloxane, or isododecane; said water soluble ultraviolet absorbent is one or more selected from the group consisting of phenylbenzimidazole sulfonate, 2-hydroxy-4-methoxy benzophenone-5-sulfonate, 4-(2-beta-glucopyrano-siloxy)propoxy-2-hydroxybenzophenone, and bis-sodium phenylene-1,4-bis(2-benzimidazyl)-3,3′-5,5′-tetrasulfonate; and said oil soluble ultraviolet absorbent is one or more selected from the group consisting of 2-ethylhexyl-p-methoxycinnamate, 4-tert-4′-methoxydibenzoylmethane, octocrylene, 2,4-bis-[{4-(2-ethythexyloxy)-2-hydroxy}-phenyl]-6-(4-methoxyphenyl)-1,3,5-triazine, methylene bis-benzotriazolyl tetrarnethyl butylphenol, 2,4,6-tris-[4-(2-ethylhexyloxycarbonyl)anilino]-1,3,5-triazine, diethylamino hydroxybenzoyl hexyl benzoate, oxybenzone, and dihydroxy dimethoxy benzophenone.