MODIFIED SQL-GEL PROCESS SILICA PARTICLE AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain modified sol-gel process silica particles with high fluidity and controlled agglomeration. SOLUTION: This modified sol-gel process silica particles are characterized in that a ratio (A1/A2)of a peak area (A1) based on an isolated silanol group and a peak area (A2) based on a hydrogen bonded silanol group is >=0.03 in the measurement of IR spectrum by the diffused reflection method.