ABS molding materials with enhanced working properties

A thermoplastic molding composition comprising at least one polymer component selected from

• A) a graft rubber prepared by polymerization of
• A1) 35 to 65 parts by wt. of one or mom monomers, at least one of which is acrylonitrile, onto
• A2) 35 to 65 parts by wt. of one or more rubber bases with a glass transition temperature of ≦0° C. with a C50 value of acrylonitrile of the graft shell is 31 to 40 wt % (based on the total graft shell in each case) and with a chemical distribution (C90−C10 value) of the acrylonitrile of 6 to 25 wt %, and
• B) a rubber-free thermoplastic vinyl resin obtained by radical polymerization of a monomer combination of acrylonitrile and styrene and/or α-methylstyrene with a C50 value of acrylonitrile of 30 to 40 wt. % and a chemical distribution (C90−C10 value) of the acrylonitrile of 6 to 25 wt. %.