SOLUBILIZING AGENTS FOR ACTIVE OR FUNCTIONAL ORGANIC COMPOUNDS
An active or functional organic compound is solubilized by an ester of an aryl alcohol, e.g., phenethyl, benzyl or substituted benzyl alcohol, and an alkyl or cycloalkyl carboxylic acid, or by a carbonate of said aryl alcohol and an alkyl or cycloalkyl carbonic acid.
1 - 19 . (canceled)
20 . A sunscreen composition comprising a sunscreen active or functional organic compound solubilized in an ester of (i) an aryl alcohol and (ii) an alkyl or cycloalkyl carboxylic or carbonic acid wherein the ester has one of the following named formulas:
and wherein the ester is from 1 to 35% by weight of the composition.
21 . The sunscreen composition according to claim 20 wherein the ester is from 2-20% by weight of the composition.
22 . The sunscreen composition according to claim 21 wherein the ester is from 10-20% by weight of the composition.
23 . The sunscreen composition according to claim 21 wherein the ester is 10% by weight of the composition.
24 . The sunscreen composition according to claim 20 wherein the ester is 2-phenylethyl pentanoate.
25 . The sunscreen composition according to claim 20 wherein the ester is 2-phenylethyl cyclohexanoate.
26 . The sunscreen composition according to claim 20 wherein the sunscreen active or functional organic compound is a solid.
27 . The sunscreen composition according to claim 20 wherein the sunscreen active or functional organic compound is solubilized in an amount of at least 10 wt. %.
28 . The sunscreen composition according to claim 20 wherein the sunscreen active or functional organic compound is selected from the group consisting of avobenzone, oxybenzone, 4-methylbenzylidene camphor, ethylhexyl triazone or bis-ethylhexyloxyphenol methoxyphenyl triazine, and mixtures thereof.
29 . The sunscreen composition according to claim 20 in which said active is selected from the group consisting of avobenzone, benzophenone-3, benzophenone-4, benzophenone-5,4-methylbenzylidene camphor, p-aminobenzoic acid (PABA), camphor benzalkonium methosulfate, homosalate, phenylbenzimidazole sulfonic acid, terephthalidene dicamphor sulfonic acid, benzylidene camphor sulfonic acid, octocrylene, polyacrylamidomethyl benzylidene camphor, ethylhexyl methoxycinnamate, PEG-25 PABA, isoamyl p-methoxycinnamate, ethylhexyl triazone, drometrizole trisiloxane, diethylhexyl butamido triazone, 3-benzylidene camphor, ethylhexyl salicylate, ethylhexyl dimethyl PABA, methylene bis-benztriazolyl tetramethylbutylphenol, disodium phenyl dibenzimidazole tetrasulfonate, bis-ethylhexyloxyphenol methoxyphenyl triazine, polysilicone-15, and mixtures thereof.
30 . A sunscreen composition comprising a sunscreen active or functional organic compound solubilized in an ester of (i) a phenylethyl alcohol and (ii) an alkyl or cycloalkyl carboxylic or carbonic acid.
31 . The composition according to claim 30 wherein the sunscreen active or functional organic compound is selected from the group consisting of avobenzone, benzophenone-3, benzophenone-4, benzophenone-5,4-methylbenzylidene camphor, p-aminobenzoic acid (PABA), camphor benzalkonium methosulfate, homosalate, phenylbenzimidazole sulfonic acid, terephthalidene dicamphor sulfonic acid, benzylidene camphor sulfonic acid, octocrylene, polyacrylamidomethyl benzylidene camphor, ethylhexyl methoxycinnamate, PEG-25 PABA, isoamyl p-methoxycinnamate, ethylhexyl triazone, drometrizole trisiloxane, diethylhexyl butamido triazone, 3-benzylidene camphor, ethylhexyl salicylate, ethylhexyl dimethyl PABA, methylene bis-benztriazolyl tetramethylbutylphenol, disodium phenyl dibenzimidazole tetrasulfonate, bis-ethylhexyloxyphenol methoxyphenyl triazine, polysilicone-15, and mixtures thereof.
32 . The composition according to claim 30 wherein the ester is an ester of 2-phenylethyl alcohol.
33 . A composition consisting essentially of a sunscreen active or functional organic compound solubilized in an ester selected from the group consisting of
34 . The composition according to claim 33 consisting of the sunscreen active or functional organic compound and the ester.
35 . The composition according to claim 33 wherein the sunscreen active or functional organic compound has a solubility of at least 10 weight percent in the ester at 25 C.
36 . The composition according to claim 33 wherein the sunscreen active or functional organic compound has a solubility of at least 20 weight percent in the ester at 25 C.
37 . The composition according to claim 33 wherein the sunscreen active or functional organic compound has a solubility of at least 30 weight percent in the ester at 25 C.
38 . The composition according to claim 33 wherein the sunscreen active or functional organic compound is selected from the group consisting of avobenzone, oxybenzone, 4-methylbenzylidene camphor, ethylhexyl triazone or bis-ethylhexyloxyphenol methoxyphenyl triazine, and mixtures thereof.
39 . The sunscreen composition according to claim 33 wherein the sunscreen active or functional organic compound is selected from the group consisting of avobenzone, benzophenone-3, benzophenone-4, benzophenone-5,4-methylbenzylidene camphor, p-aminobenzoic acid (PABA), camphor benzalkonium methosulfate, homosalate, phenylbenzimidazole sulfonic acid, terephthalidene dicamphor sulfonic acid, benzylidene camphor sulfonic acid, octocrylene, polyacrylamidomethyl benzylidene camphor, ethylhexyl methoxycinnamate, PEG-25 PABA, isoamyl p-methoxycinnamate, ethylhexyl triazone, drometrizole trisiloxane, diethylhexyl butamido triazone, 3-benzylidene camphor, ethylhexyl salicylate, ethylhexyl dimethyl PABA, methylene bis-benztriazolyl tetramethylbutylphenol, disodium phenyl dibenzimidazole tetrasulfonate, bis-ethylhexyloxyphenol methoxyphenyl triazine, polysilicone-15, and mixtures thereof.
40 . A method of preparing the sunscreen composition according to claim 20 comprising solubilizing the sunscreen active or functional organic compound in the ester.