Scratching Resistance Clearcoat Compositions Containing Surface Reactive Microparticles and Methods of Improving Scratches Resistance of Coating Compositions

摘要

The present invention relates to a coating composition having excellent scratch resistance and a method for improving the scratch resistance of the coating composition.;This coating composition contains the following components A) B) C):;A) film-forming binder system containing a crosslinkable resin and an optional crosslinker for the crosslinkable resin,;B) substantially colorless carbide or inorganic microparticles that react with the crosslinkable portion of the film-forming binder system and have a size of about 1-1000 nm prior to incorporation into the coating composition,;C) solvent systems for crosslinkable resins, for optional crosslinkers and for microparticles,;Wherein, based on the total weight of the crosslinkable resin, any crosslinker, and the inorganic microparticles, the crosslinkable resin is present in an amount from about 10 to about 80 weight percent, and the inorganic microparticles are from 0.1 to 60.0 weight percent. Present in quantities.