Aqueous dispersion liquid and coating material, film, and product using the same
AssigneesKabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.
InventorsKayo Nakano, Akira Sato, Yasuhiro Shirakawa, Keiichi Fuse, Shinya Kasamatsu, Akito Sasaki
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Abstract
In one embodiment, an aqueous dispersion liquid contains at least one particles selected from tungsten oxide particles and tungsten oxide composite particles. A mean primary particle diameter (D50) of the particles is in the range of 1 nm to 400 nm. In the aqueous dispersion liquid, concentration of the particles is in the range of 0.1 mass % to 40 mass %, and pH is in the range of 1.5 to 6.5. The aqueous dispersion liquid excels in dispersibility of particles and capable of maintaining good liquidity for a long period.
Claims9
An aqueous dispersion liquid comprising particles selected from tungsten oxide particles and tungsten oxide composite particles and a dispersion medium including water,
- wherein a mean primary particle diameter (D50) of the particles is in a range of 1 nm to 400 nm, a concentration of the particles in the aqueous dispersion liquid is in a range of 0.1 mass % to 40 mass %, and pH of the aqueous dispersion liquid is in a range of 1.5 to 6.5, and
- wherein the tungsten oxide composite contains at least one metal element selected from transition metal elements and aluminum, or a compound including at least one metal element selected from transition metal elements and aluminum, in a range of 0.001 mass % to 50 mass % as an amount of the metal element, balanced by tungsten oxide.
Dependencies are inferred from the claim text.