PROCESS FOR PRODUCTION OF IMPACT MODIFIED THERMOPLASTIC MOULDING COMPOSITION WITH IMPROVED PROCESSING AND IMPACT STRENGTH

摘要

The present invention relates to a process for producing a thermoplastic moulding composition comprising a thermoplastic copolymer A, a graft copolymer B and optionally a further polymer component C as well as optional further additives K, wherein the preparation of the graft copolymer B is carried out via emulsion polymerization, and wherein at least one surfactant S2 issued in grafting step of emulsion polymerization in a volume concentration in the range of 0.46 to 0.75 mol/m³, based on the volume of the graft copolymer B latex particles obtained; and wherein the mean particle diameter D_w of the latex particles of graft copolymer B is in the range of 60 to 800 nm.