Polycarbonate compositions having improved mechanical properties

A polycarbonate composition comprising:

• A) from 82 to 99.5% by weight, based in each case on the sum of the parts by weight of the components A and B, of at least one polycarbonate having high heat distortion resistance and based on one or more cycloaliphatic bisphcnols of Formula (1a)
• wherein
• R1 and R2 are, independently of one another, hydrogen, halogen, C1-C8-alkyl, C5-C6-cycloalkyl, phenyl, or C7-C12-aralkyl,
• n is an integer from 4 to 7,
• R3 and R4 are selectable for each X individually and are, independently of one another, hydrogen or C1-C6-alkyl, and
• X is carbon,
• with the proviso that, on at least one X, R3 and R4 simultaneously arealkyl;
• and
• B) from 0.5 to 18% by weight, based in each case on the sum of the parts by weight of the components A and B, of at least one ethylene alkyl acrylate block copolymer.