| abstract |
The present invention relates to a method for the production of impact-modified, filled polycarbonate compositions and molding compounds, characterized in that (i) in a first step the CNT (component C) is mixed with vinyl copolymer containing rubber (component B) and/or vinyl copolymer not containing any rubber (component D) on a twin-screw extruder while obtaining a CNT master batch, (ii) in a second step the CNT master batch from the first step is mixed with polycarbonate (component A) and optionally additional parts B and D, and optionally further additives (component E), on a twin-screw extruder, wherein the decomposition of the molecular weight of the polycarbonate is improved during the compounding as opposed to method known from prior art. |