Patent ID: 7271235
Filing Date: 2007-09-18
Classification: C08G

Abstract:
1. A branched aromatic polycarbonate produced by transesterification and having a viscosity average molecular weight of at least 16,000, wherein the amount of structural units of the following formula (1) contained in its main chain is within a range of from 2,000 to 50,000 wtppm, and the amounts of structural units of the following formulae (2) and (3) contained in its main chain are within a range of from 30 to 10,000 wtppm, respectively: wherein X is a single bond, a C wherein X is a single bond, a C wherein the total amount of structural units of the following formulae (4) and (5) contained in its main chain is within a range of from 10 to 10,000 wtppm: wherein X is a single bond, a C