Disclosed is a method for recycling polycarbonate using melt polycondensation apparatus. A polycarbonate polycondensation component is introduced into transesterification polymerization equipment and subjected to one or both of a transesterification reaction and a polycondensation reaction. The polycarbonate polycondensation component has an OH group concentration and comprises one or both of polycarbonate waste resin and polycarbonate oligomer. The OH group concentration of the polycarbonate polycondensation component is adjusted either before or during the transesterification and/or polycondensation reactions.
申请公布号
WO2004052972(A2)
申请公布日期
2004.06.24
申请号
WO2003US40065
申请日期
2003.12.05
申请人
GENERAL ELECTRIC COMPANY;IKEDA, AKIO;KIMURA, TAKATO;SHIMODA, TOMOAKI