Flame-resistant polycarbonate ABS blends

Blends containing

• A) from 40 to 99 parts by weight of aromatic polycarbonate and/or polyester carbonate,
• B) from 0.5 to 60 parts by weight of graft polymer, prepared by means of mass, solution or mass-suspension polymerisation processes, of
• B.1) from 50 to 99 wt. % of one or more vinyl monomers with
• B.2) from 50 to 1 wt. % of one or more graft bases having a glass transition temperature <10° C.,
• C) from 0 to 45 parts by weight of at least one thermoplastic polymer selected from the group of the vinyl (co)polymers and polyalkylene terephthalates,
• D) from 0.1 to 30 parts by weight of a phosphonate amine
• A3−y—N—By (I)
• in which
• A represents a radical of formula (IIa)
• R1 and R2 are each independently of the other unsubstituted or substituted C1-C10-alkyl or unsubstituted or substituted C6-C10-aryl,
• R3 and R4 are each independently of the other unsubstituted or substituted C1-C10-alkyl or unsubstituted or substituted C6-C10-aryl, or
• R3 and R4 together represent unsubstituted or substituted C3-C10-alkylene,
• y represents the numerical values 0, 1 or 2, and
• the substituents B are each independently hydrogen, optionally halogenated C2-C8-alkyl, unsubstituted or substituted C6-C10-aryl,
• E) from 0 to 5 parts by weight of fluorinated polyolefin.