Patent ID: 9726796
Date: 2017-08-08
CPC Classifications: B82Y,C01P,C09C,G02B,Y10T

Claim:
1. A method for manufacturing a heat-ray shielding fine particle-containing composition, comprising: a first step of obtaining a dispersion liquid by dispersing composite tungsten oxide fine particles with an average particle size of 40 nm or less, expressed by a general formula MyWOz (wherein M is one kind or more elements selected from Cs, Rb, K, Tl, In, Ba, Li, Ca, Sr, Fe, Sn, Al, and Cu, satisfying 0.1<=y<=0.5, 2.2<=z<=3.0) and having a hexagonal crystal structure, and dispersing a dispersant into an organic solvent with a boiling point of 120° C. or less; a second step of obtaining a mixture by mixing metal carboxylate into the dispersion liquid obtained by the first step; and a third step of drying the mixture obtained by the second step to thereby obtain a heat-ray shielding fine particle-containing composition, and setting a content of the organic solvent remained in the heat-ray shielding fine particle-containing composition to 5 mass % or less.