Sunscreen compositions containing a combination of a linear ultraviolet radiation-absorbing polyether and other ultraviolet-screening compounds

Abstract

Sunscreen composition including a combination of a linear ultraviolet radiation absorbing polyether that includes a covalently bound UV-chromophore, and at least one non-polymeric UV-screening compounds.

1 . A sunscreen composition, comprising:
 a polymer composition comprising a linear, ultraviolet radiation absorbing polyether comprising a covalently bound UV-chromophore; and   at least one additional UV screening compound.   
     
     
         2 . The composition of  claim 1  wherein said additional UV-screening compound is avobenzone. 
     
     
         3 . The composition of  claim 1  wherein said covalently bound UV-chromophore is a benzotriazole. 
     
     
         4 . The composition of  claim 1  wherein said additional UV screening compound is a UV blocking compound. 
     
     
         5 . The composition of  claim 4  wherein said UV blocking compound is titanium oxide or zinc oxide. 
     
     
         6 . The composition of  claim 1  wherein said additional UV screening compound is an organic UV absorbing compound. 
     
     
         7 . The composition of  claim 6  wherein said organic UV absorbing compound is selected from the group consisting of Diethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, Bis Ethylhexyloxyphenol Methoxyphenyl Triazine, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Tris-Biphenyl Triazine, Ethylhexyl Methoxycinnamate, Octocrylene,1,1′-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone, Phenylbenzimidazole Sulfonic Acid, Ethylhexyl salicylate, Homosalate, Diethylhexyl butamido triazone, Isoamyl p-methoxycinnamate, and Polysilicone-15. 
     
     
         8 . The composition of  claim 6  wherein said organic UV absorbing compound is selected from the group consisting of Diethylamino Hydroxybenzoyl Hexyl Benzoate, Ethylhexyl Triazone, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Methylene Bis-Benzotriazolyl Tetramethylbutylphenol, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, Tris-Biphenyl Triazine, Ethylhexyl Methoxycinnamate, Octocrylene, and 1,1′-(1,4-piperazinediyl)bis[1-[2-[4-(diethylamino)-2-hydroxybenzoyl]phenyl]-methanone. 
     
     
         9 . The composition of  claim 1  wherein said additional UV screening compound is a mixture of Ethylhexyl Triazone, Diethylamino Hydroxybenzoyl Hexyl Benzoate and Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine. 
     
     
         10 . The composition of  claim 1  wherein said additional UV screening compound is a mixture of Ethylhexyl Triazone, Butyl Methoxydibenzoylmethane, Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine, and Methylene Bis-Benzotriazolyl Tetramethylbutylphenol. 
     
     
         11 . The composition of  claim 1  wherein said additional UV-screening compound is Methylene bis-benzotriazolyl tetramethylbutylphenol and octocrylene. 
     
     
         12 . The composition of  claim 1  wherein said one additional UV-screening compound is octocrylene. 
     
     
         13 . The composition of  claim 1  further comprising acrylic/styrene copolymers. 
     
     
         14 . The composition of  claim 1  further comprising a film-forming polymer selected from natural polymers and synthetic polymers. 
     
     
         15 . The composition of  claim 14  wherein said film-forming polymer is a copolymer of vinylpyrrolidone and a long-chain alpha-olefin. 
     
     
         16 . The composition of  claim 1  further comprising silica.