Polyimide film incorporating colored polyimide matting powder and its production

摘要

A colored matting powder includes particles containing a polyimide obtained by reacting diamine and dianhydride monomers at a substantially equal molar ratio, and a pigment incorporated with the polyimide, a portion of the pigment being located at an outer surface of the particles. Moreover, a colored polyimide film is also described as incorporating the colored matting powder, and can exhibit low gloss, low transparency and good insulation.