发明名称 |
PROCESS FOR THE PRODUCTION OF POLYETHER BLOCK COPOLY-SULFONES |
摘要 |
A process for the production of polyether block copolysulfones (PEBSU's) via trans- etherification is disclosed. In the inventive process, an aromatic sulfone polymer is reacted with an aliphatic polyether having on average at least one terminal OH . function, preferably in the presence of a basic catalyst. In a preferred embodiment the reaction is carried out in a dipolar aprotic solvent. PEBSU's are used in biomedical applications such as for dialysis membranes.
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申请公布号 |
CA2299101(A1) |
申请公布日期 |
2000.08.23 |
申请号 |
CA20002299101 |
申请日期 |
2000.02.18 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
SCHULTZ, CLAUS-LUDOLF;WOLLBORN, UTE;PUDLEINER, HEINZ;REUTER, KNUD |
分类号 |
C08G75/20;C08G75/23;C08G81/00;C08L71/00;(IPC1-7):C08G81/00 |
主分类号 |
C08G75/20 |
代理机构 |
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