| abstract |
Disclosed is an infrared shielding material fine particle dispersion that can provide a heat ray shielding laminated glass that is excellent in visible light transmittance and heat ray shielding properties, has a low haze value, and is less discolored by ultraviolet rays. The dispersion contains infrared (heat ray) shielding material fine particles composed of tungsten oxide fine particles and / or composite tungsten oxide fine particles, a plasticizer, and a dispersant, and the dispersant has an HLB value of 1 to 1. 3 polyglycerol fatty acid ester. In this dispersion, since the polyglycerin fatty acid ester is not easily oxidized and deteriorated even when exposed to ultraviolet rays, coloring of the infrared shielding material fine particles does not occur. Therefore, a resin composition in which the dispersion and polyvinyl acetal resin are mixed The laminated glass excellent in the said characteristic can be provided by comprising the intermediate film of heat ray shielding laminated glass with a thing. [Selection] Figure 1 |