PROCESS FOR THE PREPARATION OF POWDER COATINGS

摘要

The invention relates to a process for the preparation of powder coatings with any desired gloss level comprising the following steps of: a) applying the powder coating composition onto the substrate surface, b) irradiating the applied powder coating composition with high energy radiation under near-ambient temperature, c) fusing, melting and flowing out the particles of the powder coating composition by increased temperature to a molten coating, and d) curing the molten coating; the process according to the invention makes it possible to control the gloss of the coating to any level, by varying the time period and the intensity of the UV-irradiation in step b).