Method of coextruding a plate-shaped product and the products thus obtained

摘要

The invention relates to a method for the coextrusion of a plate-shaped product. In the method according to the invention at least one coating layer is provided by means of coextrusion which is composed of a special polymer mixture. This mixture enables obtaining a matt surface and can be provided very uniformly on the major layer of polycarbonate by coextrusion. The polymer mixture comprises 84-92% by weight of polycarbonate, 4-8% by weight of talcum and 4-8% by weight of a mattifying agent based on acrylate copolymers.