Patent ID: 9382378
Filing Date: 2016-07-05
CPC Classification: B29C,C08G,C08J,C08K,Y02P

Claim Text:
1. A polycarbonate resin obtained by condensation-polymerizing at least one dihydroxy compound including a dihydroxy compound which has the portion represented by formula (1) as part of the structure thereof with a carbonic diester represented by formula (2) in the presence of a catalyst, the catalyst comprising one or more compounds containing at least one metal selected from the group consisting of lithium and the Group-2 metals of the long-form periodic table, the polycarbonate resin having a content of the metal-containing compounds of 20 μmol or less in terms of metal amount per mole of the dihydroxy compound and containing an aromatic monohydroxy compound in an amount of 700 weight ppm or less, wherein the case where the portion represented by formula (1) is part of —CH wherein, in formula (2), A wherein the polycarbonate resin has a total content of sodium, potassium, and cesium of 1 weight ppm or less in terms of metal amount.