TITANIUM DIOXIDE AQUEOUS DISPERSION, SUBSTRATE OBTAINED FROM SAID DISPERSION AND SELF-CLEANING METHOD FOR SAID SUBSTRATE

摘要

The invention concerns an aqueous dispersion comprising photocatalytic titanium dioxide particles, an anionic water soluble dispersant of mole weight not more than 5000, and an ampholytic water soluble film-forming polymer whereof the anionic load is not less than the cationic load, the pH of the dispersion being not less than 3.