US Patent 7837774 Biocide compositions for use in coatings

Biocide compositions capable of increasing the fading resistance of a coating material, which compositions preferably comprise a nano-sized halogenated benzonitrile and a nano-sized zinc oxide, are disclosed. Coating compositions, which comprise the biocide compositions, binders, and pigments are disclosed. The biocide compositions are particularly suitable for use in paints. Methods for reducing the fading of pigmented coating compositions upon exposure to light are also disclosed.