Patent ID: 6730748
Filing Date: 2004-05-04
Classification: C08G,C08L

Abstract:
A thermoplastic blend composition comprising(A) 80 to 60 percent, relative to the total weight of (A) and (B), of a copolycarbonate wherein 65 to 75 mole percent of its structural units are derived from compounds of formula (I) â€ƒwherein R1, R2, R3 and R4 independently of one another represents H, C1-C4-alkyl, phenyl, substituted phenyl or halogen, and wherein 25 to 35 mole percent of its structural units are derived from compounds of formula (II) â€ƒwhere R5, R6, R7 and R8 independently one of the others denote H, CH3, Cl or Br and X is C1-C5-alkylene, C2-C5-alkylidene, C5-C6-cycloalkylene, C5-C10-cycloalkylidene and (B) 20 to 40 percent, relative to the total weight of (A) and (B), of a homopoly-carbonate of bisphenol A having a melt flow rate, determined in accordance with ASTM D-1238 under 1.2 kg loading, at 300Â° C. of 3 to 12 gm/10 minutes, the percents, both occurrences being relative to the weight of the composition.