COMPOSITION FOR PRODUCING A HEAT RAY SHIELDING POLYVINYL CHLORIDE FILM, METHOD FOR PRODUCTION OF THE COMPOSITION, AND HEAT RAY SHIELDING POLYVINYL CHLORIDE FILM

摘要

A composition for manufacturing a heat ray-shielding polyvinyl chloride film by the steps of obtaining a dispersion liquid by dispersing tungsten oxide nanoparticles expressed by a general formula WO_x and/or the composite tungsten oxide nanoparticles expressed by a general formula M_yWO₂ and having a hexaboride crystal structure, and a dispersant, into an organic solvent;obtaining a mixture by mixing a plasticizer for manufacturing a polyvinyl chloride; into this dispersion liquid; and obtaining a composition for manufacturing the heat ray-shielding polyvinyl chloride film by using a vacuum distillation method and removing the organic solvent from this mixture until a concentration of the solvent is 5wt% or less.