Aqueous Dispersions for
Self Cleaning Coatings
Patent No. Europe 1,337,594
Rhodia Chimie has been granted a patent for self-cleaning coatings with good mechanical properties. The coatings are obtained by using an aqueous dispersion containing photocatalytic (anatase) titanium dioxide particles, water-soluble anionic dispersion, MW up to 5,000, and water soluble ampholytic film-forming polymer, in specified proportions and optionally also water-soluble alcohol, boiling point less than 100˚C.