Patent ID: 9421401
Filing Date: 2016-08-23
CPC Classification: A61K,A61Q

Claim Text:
1. A surfactant system comprising at least one surfactant and an emulsion of a modified starch and a hydrophobic active ingredient, wherein the emulsion is stable without the at least one surfactant, wherein said modified starch is modified with at least one quaternary ammonium cationic derivative and at least one hydrophobic derivative selected from the group consisting of octenyl succinic anhydride and dodecenyl succinic anhydride on the same polymer backbone, wherein the modified starch contains between 0.2 and 0.7 wt. % of cationic nitrogen and between 3 and 10 wt. % of said hydrophobic derivative, based on the dry weight of said modified starch, and wherein the hydrophobic active ingredient is an oil.