Composites consisting of at least one thermoplastic, at least one highperformance plastic and/or at least one epoxy resin and barium sulfate, whose crystallite size d50 is less than 350 nm, preferably less than 200 nm and particularly preferably between 3 and 50 nm, and wherein the barium sulfate can be both inorganically or organically surfacemodified and also nonsurfacemodified (hereinafter also .
attrition fine dry milling using Attritors in continuous or batch type modes. The principle of Attritor dry grind processing is achieved by an expanded moving bed of media. This condition is described as kinematic porosity. The dry particles are subjected various forces .