Patent ID: 6726933
Filing Date: 2004-04-27
Classification: A61K,A61Q,C01B,C01P

Abstract:
A rod-shaped mesoporous powder which is mainly composed of silicon oxide and which has homogenous pore, and which is obtained by a process comprising the steps of;a dissolution step wherein a concentration of 0.3-1.2M of a silicate which is in the range of 02/Y2O<2 (Y: alkali metal atom) is dissolved in the presence of a cationic surfactant and the pH is 11 or more, a condensation step wherein the pH is adjusted to 10.5 or less within 30 minutes, a rod micelle is formed with said cationic surfactant and a silicate is condensed on said rod micelle, and a removal step wherein said cationic surfactant is removed from a micelle state condensation which has an outer shell made of the silicate by said condensation.