PROCESS FOR FRACTIONATION/CONCENTRATION TO REDUCE THE POLYDISPERSIVITY OF POLYMERS
摘要
<p>Methods of reducing the amount of undesirable by-products in the production of polymers are disclosed. The resulting polyetherimides have lower polydispersivity and enhanced thermomechanical properties. In some embodiments, cyclic and low molecular weight linear oligomers are also obtained.</p>
申请公布号
WO2005021599(A1)
申请公布日期
2005.03.10
申请号
WO2004US27425
申请日期
2004.08.24
申请人
GENERAL ELECTRIC COMPANY;KHOURI, FARID, FOUAD;HOWSON, PAUL, EDWARD
