PREPARATION OF REINFORCED, IMPACT-MODIFIED THERMOPLASTIC MOLDING COMPOSITIONS

摘要

- 20 - O.Z. 0050/41029 of the disclosure: The invention relates to a process for the preparation of reinforced, impact-modi-fied thermoplastic molding compositions which contain, based on 100 parts by weight, A) from 30 to 93 parts by weight of one or more thermo plastics from the group comprising the polyamides, polyesters, polycarbonates and polyphenylene ethers, B) from 5 to 50 parts by weight of fibers, preferably glass fibers, and C) from 2 to 20 parts by weight of one or more impact modifying rubbers, in which process the fibers (B) are first introduced into the melt of the thermoplastic (A), components (A) and (B) are mixed, the rubber (C) is then introduced into the resultant mixture in the melt, and the resultant molding composition is extruded and granulated, wherein the reaction is carried out in one step, expediently at a constant temperature in the range of, advantageously, from 250 to 300.degree.C.