Patent ID: 7655613
Filing Date: 2010-02-02
Classification: A61K,A61Q

Abstract:
1. An oil containing composition comprising: A) from 0.01 to 80% w/w of an oil; B) a surfactant system (S) of one or more anionic surfactants and one or more non-ionic surfactants, in an amount such that the concentration ratio oil/surfactant is comprised between 1 and 3; C) a solubilizing-aid ingredient (SA) of pyrrolidone carboxylic acid sodium salt or a mixture of pyrrolidone carboxylic acid sodium salt with one or more salts selected from the group consisting of sodium benzoate, sodium L-lactate, calcium L-ascorbate, sodium bicarbonate, di-sodium succinate; D) optionally water; and wherein the ratio between the amount of oil (O) and the total amount of surfactant system (S) plus solubilizing-aid (SA) ingredient is comprised between 0.1 and 5; provided that VOC-free microemulsions which comprise from 1 to 30% w/w of an oil having a surface tension of at least 25 mN/m, at 25 C; a surfactant system containing one or more ionic surfactants and one or more non-ionic surfactants, the amount of ionic surfactant or surfactants being at least 50% weight, relative to the total weight of surfactant system; at least 60% w/w of water; and displaying a clarity comprised between 0 and 90 NTU as measured between 400 and 600 nm in a 2.5 cm cell at 25 C, are excluded.