Patent ID: 9150421
Filing Date: 2015-10-06
Classification: B01J,B82Y,C01B,C01G,C01P,C09C,Y10T

Abstract:
1. A silane treated modified metal oxide colloidal particle comprising being produced by bonding to the particle surface of a modified metal oxide colloidal particle, 1 to 4 silyl group(s) per 1 nm 2 of the surface area of the particle surface of the modified metal oxide colloidal particle, which is produced by coating an outer surface of a metal oxide colloidal particle as the core with a complex oxide colloidal particle, the modified metal oxide colloidal particle being a modified metal oxide colloidal particle (C) produced by coating an outer surface of a colloidal particle (A) of an oxide of at least one metal selected from the group consisting of Ti, Fe, Zr, Sn, Ta, Nb, Y, Mo, W, Pb, In, Bi, and Sr having a primary particle diameter of 5 to 60 nm as the core with a silicon dioxide-stannic oxide complex oxide colloidal particle (B) having a primary particle diameter of 1 to 4 nm, in which the mass ratio of silicon dioxide/stannic oxide is 0.1 to 5.0, and an amine compound is bonded in a molar ratio of M/(SnO 2 +SiO 2 ), wherein M is an amine compound, of 0.001 to 0.08, the modified metal oxide colloidal particle (C) having the mass ratio (B)/(A) of the complex oxide colloidal particle (B) relative to the metal oxide colloidal particle (A) being 0.05 to 0.50.