BARIUM SULFATE DISPERSION, COATING MATERIAL, COATING FILM, AND FILM

• Main Authors: SAKAI Takayuki, AIZAWA Satoru, GONDO Ryosuke
• Format: Patent
• Language: English; French; Japanese
• Published: 20.05.2021
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; PREPARATION OF CARBON BLACK; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; USE OF MATERIALS THEREFOR; WOODSTAINS

One embodiment of the present invention relates to a barium sulfate particle dispersion containing barium sulfate particles and a solvent, wherein: the barium sulfate particles have a pH of 7.0-11.0 in dimethylacetamide and have a dispersed particle size of 100-800 nm; and the solvent contains at least one type selected from the group consisting of dimethylacetamide, N-methyl-2-pyrrolidone, and γ-butyrolactone. Un mode de réalisation de la présente invention concerne une dispersion de particules de sulfate de baryum contenant des particules de sulfate de baryum et un solvant, les particules de sulfate de baryum ayant un pH de 7,0 à 11,0 dans le diméthylacétamide et ayant une taille de particule dispersée de 100 à 800 nm; et le solvant contient au moins un type choisi dans le groupe constitué par le diméthylacétamide, la N-méthyl-2-pyrrolidone et la gamma-butyrolactone. 一実施形態は、硫酸バリウム粒子と、溶剤とを含有する硫酸バリウム粒子分散体であって、硫酸バリウム粒子が、ジメチルアセトアミド中のｐＨが７．０～１１．０であり、硫酸バリウム粒子の分散粒径が、１００～８００ｎｍであり、かつ、溶剤が、ジメチルアセトアミド、Ｎ－メチル－２－ピロリドン、およびγ－ブチロラクトンからなる群より選ばれる少なくとも１種を含む、硫酸バリウム粒子分散体に関する。