CLIMBAZOLE MICROCAPSULE AND HAIR CARE COMPOSITION COMPRISING SURFACTANT AND CLIMBAZOLE

摘要

A core shell microcapsule wherein the liquid core of the microcapsule comprises solvent and climbazole dissolved in the solvent in a weight ratio of at most 8:1, preferably at most 5:1, solvent:climbazole. Also a process to manufacture the core shell microcapsule comprising the steps of: a) Dissolving climbazole in solvent to form an oil phase; b) Mixing the oil phase with an oil soluble first component of a shell forming polymerization system; c) Dispersing the mixture from step b in an aqueous phase which either contains, or has added to it, a water soluble second component of a shell forming polymerization system; d) Forming microcapsules by reaction of the first and second components of the polymerization system to encapsulate the climbazole dissolved in the solvent; and e) Optionally separating the formed microcapsules from the aqueous phase. Also a hair care composition comprising surfactant and at least 0.1 wt % of a core shell microcapsule comprising a polymer shell and a core comprising climbazole and solvent wherein the climbazole is dissolved in the solvent in a weight ratio of at most 8:1, preferably at most 5:1 solvent.