Patent ID: 6586556
Filing Date: 2003-07-01
Classification: C08G,C08L,Y10T

Abstract:
Thermoplastic copolycarbonates comprising 34 to 26 mole % of residues of compounds corresponding to formula (I), whereinR1 to R4 independently of one another, represent H, C1-C4-alkyl, phenyl, substituted phenyl or halogen, preferably for H, C1-C4-alkyl or halogen and 56 to 74 mole % of residues of compounds corresponding to formula (II) whereinR5 to R8 independently of one another, are H, CH3, Cl or Br, and X is C1-C5-alkylene, C2-C5-alkylidene, C5-C6-cycloalkylene, C5-C10-cycloalkylidene, as monomers, wherein the total of said mole % of residues of monomers corresponding to formula (I) and formula (II) is equal to 100 mole %, said compounds being for use as materials in areas in which particularly good low temperature properties are required.