| abstract |
The present invention provides hollow particles which are superior in heat resistance and dispersibility, and which are lightweight, as well as a method for producing the same, and an aqueous dispersion containing the hollow particles. The hollow particles are characterized in that they are formed by coating the surface of the hollow resin particles with inorganic fine particles, have a volume average particle diameter of 0.1 to 9.0 μm, a void ratio of 55 to 95%, and constitute repeating units of the resin in the hollow resin particles. It contains a crosslinkable monomer unit, and the content of the crosslinkable monomer unit per 100 parts by mass of the resin is 25 to 100 parts by mass, and the primary particle size of the inorganic fine particles is 10 to 120 nm, relative to 100 parts by mass Parts of the above-mentioned hollow resin particles contain 5 to 180 parts by mass of the above-mentioned inorganic fine particles. |