Binder for powder cellulose lacquer, the production manner, powder cellulose lacquer and its production manner

摘要

The invention relates to a binder for powder coatings (powder paints) whose granules have a particle size distribution of between 0.001 and 5.5 mm, preferably between 0.001 and 4 mm, and in particular to the use of such binders for the production of powder coatings and to a heat-crosslinkable powder coating which contains the binder according to the invention, pigments and/or fillers and additives. The invention also relates to a process for the preparation of this binder in which, in a first step, pills having a diameter of from 1 to 8 mm and a thickness of from 0.5 to 4 mm are shaped from the binder melt by means of a suitable device, and, in a second step, binder granules having a particle size distribution of between 0.001 and 5.5 mm, preferably between 0.001 and 4 mm, are obtained by mechanical comminution.