Patent ID: 6359103
Filing Date: 2002-03-19
Classification: C08G

Abstract:
A process for producing an aromatic-aliphatic copolycarbonate comprising polycondensing reactants which consist essentially of (a), (b) and (c), wherein:(a) is at least one aromatic dihydroxy compound represented by formula (III): whereinX represents R1 and R2, which may be the same or different, each represents a hydrogen atom, an alkyl group having 1 to 10 carbon atoms or a halogen atom; and m and n, which represent a number of substituent R1 or R2, respectively, are each an integer of 0 to 4, wherein (b) is tricyclo (5.2.1.02,6) decanedimethanol represented by formula (IV): â€ƒand wherein (c) is a carbonic acid diester, in a molten state under heating, wherein said carbonic acid diester has a chlorine content of 20 ppm or lower.