| 摘要 |
<p>The invention concerns powder coatings comprising a mother powder coating having an average particle diameter of 30 to 50 microns and comprising a thermoplastic or thermosetting binder, resin, said particle carrying, at least on the surface thereof, microparticles of a crosslinked or uncrosslinked resin and having an average diameter of 0.001 to 10µm, a glass transition temperature of 50 to 150°C and an SP value of 9 to 15, and containing a functional material which is UV absorber, antioxidant or hardening catalyst, the weight ratio of the microparticles to the total weight of the powder coatings being from 0.05 to 30% by weight.</p> |
