Cholesterol ester clathrate, water-holding composition, hydrous compositions, cosmetics containing the same, and processes for the preparation thereof

摘要

PCT No. PCT/JP96/01815 Sec. 371 Date Feb. 27, 1997 Sec. 102(e) Date Feb. 27, 1997 PCT Filed Jul. 1, 1996 PCT Pub. No. WO97/01356 PCT Pub. Date Jan. 16, 1997A cholesterol ester clathrate comprising a cholesterol ester included within a hydroxyalkylated cyclodextrin; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a hydrous stabilizer, and water; a hydrous composition comprising a hydroxyalkylated cyclodextrin, a cholesterol ester, a clay mineral, and water; a cosmetic containing a hydrous composition; and processes for making the cholesterol ester clathrate and various hydrous compositions. The cholesterol ester clathrate exhibits an emulsifying effect and the hydrous compositions are excellent in water-holding capacity, hydration properties, and separation stability at a high temperature.