Patent ID: 8703869
Filing Date: 2014-04-22
Classification: C08L

Abstract:
1. A polycarbonate composition consisting of A) 63 to 80 parts by weight (based on the sum of the parts by weight of components A, B and C) of aromatic polycarbonate and/or aromatic polyester carbonate with a relative solution viscosity, measured in methylene chloride, of 1.20 to 1.30, B) 15 to 37 parts by weight (based on the sum of the parts by weight of components A, B and C) of rubber-modified component comprising C) 0.1 to 5 parts by weight (based on the sum of the parts by weight of components A, B and C) of at least one additive selected from the group consisting of pentaerythritol tetrastearate, montan wax, polyethylene wax, flow auxiliaries, block copolymers of ethylene oxide and propylene oxide, polyethers, polyhydroxy ethers, polyether amides, polyester amides, sulfonic acid salts, antibacterial additives, silicone oils, hard fillers, glass or ceramic (hollow) spheres, optionally ground glass, carbon fibres, mica, kaolin, CaCO wherein (i) the rubber content of the polycarbonate composition is 1 to 6 wt. %, and (ii) at least 50 wt. % of the graft particles in component B have a diameter (measured by ultracentrifuge) below 200 nm, and wherein no more than 25 wt. % of the graft particles in component B have a diameter (measured by ultracentrifuge) of over 400 nm.