| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing easily aspheric silica particulates whose volume average particle sizes (DLS particle sizes) measured by a dynamic light scattering method are in the range of 10-300 nm. <P>SOLUTION: This method for producing aspheric silica particulates includes a step of performing a hydrolysis reaction and a condensation reaction of a hydrolyzable silane compound (component B) in a mixed liquid containing basic amino acid (component A), the hydrolyzable silane compound (component B) and an aqueous solvent (component C), wherein a mixing mole ratio (component B/component A) of the hydrolyzable silane compound (component B) to the basic amino acid (component A) is 200-2,000, and DLS particle sizes of the aspheric silica particulates are 10-300 nm. <P>COPYRIGHT: (C)2012,JPO&INPIT |
