Method for the production of thermoplastic molding compounds of ABS type comprising A) at least one graft rubber obtained from emulsion polymersiation of at least two monomers selected from styrene, α-methylstyrene, acrylonitrile, methacrylonitrile, methyl methacrylate, N -phenylmaleimide in presence of one or several rubber lattices, wherein the average particle diameter d 50 of rubber latex or rubber lattices is ≤290 nm, B) at least one graft rubber obtained from emulsion polymersiation of at least two monomers selected from styrene, α-methylstyrene, acrylonitrile, methacrylonitrile, methyl methacrylate, N-phenylmaleimide in presence of one or several rubber lattices, wherein the average particle diameter d 50 of rubber latex or rubber lattices is ≥320 nm, wherein the rubber lattices are selected from polybutadiene, butadiene/styrene-copolymerisates with up to 20 wt-% of built-in styrene and butadiene/acrylonitrile-copolymerisates with up to 15 wt-% of built-in acrylonitrile, and C) at least one rubber-free thermoplastic polymer resin obtained by radical polymerization of at least two monomers selected from styrene, α-methylstyrene, acrylonitrile, methacrylonitrile, methyl methacrylate, N-phenylmaleimide, using a kneader reactor, characterized in that a) the graft rubber components A) and B) were prepared together in a polymerization reaction, b) the amount of rubber in wt-% stemming from graft rubber component A) in the total amount of rubber in the molding compound is 0 to 25 wt-% lower than the amount of rubber in wt-% stemming from graft rubber component B (each referring to 100 weight parts graft rubber) and c) the average particle diameter d 50 of the entirety of all rubber particles contained in the molding compound shows a value ≥300 nm, wherein the average particle diameters d 50 are determined by ultracentifuge measurement. A) at least one graft rubber obtained from emulsion polymersiation of at least two monomers selected from styrene, α-methylstyrene, acrylonitrile, methacrylonitrile, methyl methacrylate, N -phenylmaleimide in presence of one or several rubber lattices, wherein the average particle diameter d 50 of rubber latex or rubber lattices is ≤290 nm, B) at least one graft rubber obtained from emulsion polymersiation of at least two monomers selected from styrene, α-methylstyrene, acrylonitrile, methacrylonitrile, methyl methacrylate, N-phenylmaleimide in presence of one or several rubber lattices, wherein the average particle diameter d 50 of rubber latex or rubber lattices is ≥320 nm, wherein the rubber lattices are selected from polybutadiene, butadiene/styrene-copolymerisates with up to 20 wt-% of built-in styrene and butadiene/acrylonitrile-copolymerisates with up to 15 wt-% of built-in acrylonitrile, and C) at least one rubber-free thermoplastic polymer resin obtained by radical polymerization of at least two monomers selected from styrene, α-methylstyrene, acrylonitrile, methacrylonitrile, methyl methacrylate, N-phenylmaleimide, using a kneader reactor, characterized in that a) the graft rubber components A) and B) were prepared together in a polymerization reaction, b) the amount of rubber in wt-% stemming from graft rubber component A) in the total amount of rubber in the molding compound is 0 to 25 wt-% lower than the amount of rubber in wt-% stemming from graft rubber component B (each referring to 100 weight parts graft rubber) and c) the average particle diameter d 50 of the entirety of all rubber particles contained in the molding compound shows a value ≥300 nm, wherein the average particle diameters d 50 are determined by ultracentifuge measurement. a) the graft rubber components A) and B) were prepared together in a polymerization reaction, b) the amount of rubber in wt-% stemming from graft rubber component A) in the total amount of rubber in the molding compound is 0 to 25 wt-% lower than the amount of rubber in wt-% stemming from graft rubber component B (each referring to 100 weight parts graft rubber) and c) the average particle diameter d 50 of the entirety of all rubber particles contained in the molding compound shows a value ≥300 nm,