Nanovere Patents Dendritic Polyurethane Coating

April 15, 2014

U.S. 8,568,888 B2
Nanovere has obtained a patent for a surface-protective coating composition comprised of a first component comprised of a globular dendritic polymer having a peripheral cross-linkable hydroxyl functionality of approximately 32 to 64; optionally, an acrylic compound having a peripheral cross-linkable hydroxyl functionality of 2 to 6; optionally, a plurality of metal oxide nanoparticles optionally encapsulated in a cross-linkable hydroxyl functional polymer and/or a cross-linkable hydroxyl functional fluorosurfactant; optionally, a sterically hindered amine light stabilizer; optionally, a UV absorber; a cross-linking catalyst; and a first substantially anhydrous solvent in which the above materials are dissolved or, in the case of the nanoparticles, are dispersed; and (2) a second component comprised of a cross-linking agent capable of reacting with hydroxyl groups; and a second substantially anhydrous solvent which may be the same as or different from the first substantially anhydrous solvent, wherein the components are mixed to form the coating.