PRODUCING METHOD FOR FINE PARTICLE FOR FORMING INSOLATION SHIELDING FILM AND APPLICATION LIQUID FOR FORMING INSOLATION SHIELDING FILM USING THE FINE PARTICLE OBTAINED BY THE PRODUCING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a producing method for a fine particle for forming an insolation shielding film which produces fine particles for forming the insolation shielding film which is capable of forming insolation shielding film of which the insolation transmittance at visible light transmittance of ≥80% is less than 70% and the haze value is less than 1% in a shorter time than the conventional method.;SOLUTION: This producing method of the fine particle for forming an insolation shielding film is characterized in that indium tin oxide fine particles the averaged grain size of which is 100 nm and tungsten oxide fine particles or rhenium oxide fine particles are mixed and are heated and treated under an atmosphere of inactive gas including alcohol or an atmosphere of mixed gas of a reducing gas and an inactive gas and the fine particles for forming insolation shielding film can be produced in a shorter time than the conventional method thanks to the catalytic action of the tungsten oxide fine particles or rhenium oxide fine particles which are added to tin- containing indium oxide fine particles at the time of heat treatment.;COPYRIGHT: (C)2002,JPO