Patent ID: 7879780

Claim:
A liquid cleansing composition comprising fatty acyl isethionate surfactant product as the main surfactant component stabilized with high level of polyols, wherein said composition comprises: (a) 8 to 50 wt. % of fatty acyl isethionate surfactant product which contains 10 to 50 wt. % fatty acids and/or fatty soaps and 35 to 85 wt. % fatty acyl isethionate in the said product, said product comprising at least 50% of total surfactant product of item (a) and co-surfactants of item (b) in the liquid composition; (b) 0 to 15 wt. % of a co-surfactant selected from the group consisting of anionic, amphoteric and nonionic surfactants and mixture thereof wherein the amount of said cosurfactant is 0 to 50 wt. % of total amount of fatty acyl isethionate surfactant product of item (a) and cosurfactant of item (b) and wherein the anionic surfactant noted does not include fatty acyl isethionate surfactant which is part of component (a); (c) 4 to 20% by wt. C 8 to C 20 fatty acids, C 8 to C 20 linear fatty acid soaps or mixtures thereof, including fatty acids and soaps which are part of component (a); and (d) 10 to 60 wt. % polyol selected from the group consisting of glycerin, sorbitol, and mixtures thereof, wherein the ratio of fatty acyl isethionate surfactant product of item (a) to cosurfactant of item (b) is in the range from 10 to 0 to 5 to 5; wherein at ambient temperature, the said composition contains surfactant and/or fatty acid crystals with dissolution temperature between 30° C. to 50° C.; wherein the viscosity of the said liquid cleanser composition at 0.01 s −1 is at least 250 Pas, at 25° C.; wherein the ratio of the viscosity at 40° C. to viscosity at 25° C., when measured at 0.01 s −1 , is at least 0.3; wherein said composition is physically stable and will not partition as can be visually observed at 45° C. for at least 2 weeks, and wherein, in the absence of sufficient amount of polyols of (d) said composition has ratio of viscosity at 40 to 25° less than 0.3 and exhibit phase separation, when measured at 45° C., in less than two weeks.