Polycarbonate blend compositions having improved weatherability and scratch resistance

A thermoplastic molding composition comprising:

• (A) 50 wt. % to 90 wt. of an aromatic (co)poly(ester)carbonate,
• (B) greater than 0 wt. % to 10 wt. of a mineral filler comprising a fused silica flour having a pH measured according to DIN ISO 10390 of 5.0 to 8.0, and an average particle size d50 of 0.25 μm to 5.0 μm and a content of metal oxides ≤2% by weight based on component B,
• (C) greater than 0 wt. % to 5 wt. % of a high molecular weight siloxane lubricant, wherein the siloxane is not polymerized with the aromatic (co)poly(ester)carbonate, and wherein the molecular weight of the siloxane lubricant is 100,000 grams per mole,
• (D) greater than 0 wt. % to 20 wt. %, of a rubber modified graft polymer, wherein component D is at least one graft polymer of;
• D.1:
• 5 wt. % to 95% wt. % of at least one vinyl monomer selected from the group consisting of styrene, α-methylstyrene and methyl methacrylate, acrylonitrile and maleic anhydride on;
• D.2:
• 5 wt. % to 95% wt. % of a one or more elastomeric graft bases selected from the group consisting of diene rubbers, acrylate rubber and silicone/acrylate composite rubbers with glass transition temperatures below −10° C., wherein the glass transition temperature is determined by means of differential scanning calorimetry according to standard DIN EN 61006 at a heating rate of 10 K/min with definition of the glass transition temperature as the mid-point temperature, and
• (E) greater than 0 wt. % to 40 wt. % of a vinyl copolymer,
• wherein the wt. %, all instances, are relative to the weight of the composition (pbw).