PPG patents Coating comprised
of dispersion particles
Patent No. U.S. 7,217,746 B2
PPG Industries has received patent for a coating composition comprised of a dispersion of particles. The particles are comprised of polymers produced from monomers having different glass transition temperatures, the difference in glass transition temperatures ranging from 50-260° C, and exhibiting phase segregation between areas of differing glass transition temperature within each particle, such that when the coating is applied to a substrate, the