Patent Number: 6,309,653

Title: Cholesterol ester clathrate, water-holding composition, hydrouscompositions, cosmetics containing the same, and process for thepreparation thereof

Abstract: A cholesterol ester clathrate comprising a cholesterol ester included in ahydroxyalkylated cyclodextrin; a hydrous composition comprising ahydroxyalkylated cyclodextrin, a cholesterol ester and water; a hydrouscomposition comprising a hydroxyalkylated cyclodextrin, a cholesterolester, a hydrous stabilizer, and water; a hydrous composition comprising ahydroxyalkylated cyclodextrin, a cholesterol ester, a clay mineral, andwater; cosmetics containing these hydrous compositions; and process forthe preparation thereof. The clathrate exhibits an emulsifying effect initself. Further, the hydrous compositions are excellent in water-holdingcapacity and are improved in hydration properties and separation stabilityat a high temperature.

Inventors: Hamano; Yohei (Kanagawa, JP), Nasu; Akio (Kanagawa, JP), Minami; Takashi (Kanagawa, JP), Miyazaki; Takayuki (Kanagawa, JP), Tomita; Noriko (Kanagawa, JP), Matsumoto; Takashi (Kanagawa, JP), Soyama; Yoshikazu (Kanagawa, JP), Ito; Kenzo (Shizuoka, JP), Matsuda; Hajime (Kanagawa, JP), Sumiyoshi; Hideyuki (Shizuoka, JP)

Assignee:

International Classification:

Expiration Date: 10/32013