Patent ID: 11920057
Assignee: NISSAN CHEMICAL CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  G | IPC C  G

Claim 0:
1. Inorganic oxide particles obtained by bonding an organosilicon compound having a nitrogen-containing heterocyclic group to the surface of modified metal oxide colloid particles (C) having an average particle diameter of 2 to 100 nm, which include metal oxide colloid particles (A) having an average primary particle diameter of 2 to 60 nm as nuclei and with the nuclei surface coated with a coating composed of inorganic oxide colloid particles (B) having an average primary particle diameter of 1 to 4 nm,
wherein the metal oxide colloid particles (A) are colloid particles of an oxide of at least one metal selected from the group consisting of Ti, Fe, Cu, Zn, Y, Zr, Nb, Mo, In, Sn, Sb, Ta, W, Pb, Bi and Ce,
wherein the inorganic oxide colloid particles (B) are colloid particles of an oxide of at least one atom selected from the group consisting of Si, Al, Sn, Zr, Mo, Sb and W and are colloid particles different from the metal oxide colloid particles (A), and
wherein the organosilicon compound having a nitrogen-containing heterocyclic group is a compound of the following Formula (III):, , where in Formula (III),
R5 is a C1-8 alkyl group, alkoxyalkyl group, or acyl group,
R6 is a methylene group or a C2-20 alkylene group,
R7 is a nitrogen-containing heterocyclic group containing 1 to 3 nitrogen atoms but excluding a group containing a pyrazole ring or a pyridine ring, and
n is an integer of 1 to 3,
wherein the nitrogen-containing heterocycle in the nitrogen-containing heterocyclic group is an indole ring, an indoline ring, a carbazole ring, a piperidine ring, a quinoline ring, an imidazoline ring, an imidazolidine ring, a benzimidazole ring, a triazole ring, a benzotriazole ring, or a triazine ring.