发明授权
- 专利标题： Poly(ether sulfone)s and poly(ether amide sulfone)s and methods of their preparation
- 专利标题（中）： 聚（醚砜）和聚（醚酰胺砜）及其制备方法
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申请号： US14321877申请日： 2014-07-02
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公开(公告)号： US09371431B2公开(公告)日： 2016-06-21
- 发明人: Krishna M. Bajjuri , Jeannette M. Garcia , James L. Hedrick
- 申请人： International Business Machines Corporation
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理商 Michael R. Roberts
- 主分类号： C08G75/00
- IPC分类号： C08G75/00 ; C08J11/08 ; C08G75/30 ; C08G64/08 ; C08G75/23
摘要：
Poly(ether sulfones) (PES) and poly(ether amide sulfones) (PEAS) were prepared from post-consumer polycarbonates and polyesters, respectively, using a single vessel in batch mode (all reactants present when heating was initiated). The depolymerization of the initial polymer occurs concurrently with step growth polymerization to form a product polymer having a number average molecular weight of at least 5000.
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