Process for the prevention of coating defects

摘要

The present invention relates to a coating process comprising
(a) providing a coating solution comprising at least one novolak resin and one or more polar organic solvents,
(b) applying the coating solution onto a substrate, and
(c) drying,
characterized in that particles have been added to the coating solution which (i) are solid at room temperature, (ii) are insoluble in polar organic solvents, (iii) have an average particle size in the range of 0.1 µm to 2 mm and (iv) comprise one or more organic materials as main component(s) or consist thereof.