PROCESS FOR PRODUCING MOULDING COMPOUNDS MODIFIED WITH ACRYLIC RUBBER AND MOULDING COMPOUNDS THUS OBTAINED

摘要

For the production of moulding compounds with good weather resistance, improved impact resistance and good creep properties, an elastomeric acrylic ester copolymer is produced which contains comonomers polymerised with chemically reactive groups. This copolymer is dissolved or macerated in monomers like styrene and acrylonitrile forming hard grafts. After the addition of monomers and/or polymers with chemically reactive groups and the possible addition of a chemically reactive cross-linking agent, the resultant monomer-copolymer mixture is subjected to graft polymerisation up to a conversion of over 15 wt. % of the monomers as a thermally or radically initiated polymerisation in substance or solution. The moulding compounds may be used as delustering agents for polymer mixtures.