发明授权
- 专利标题： Process for making polyetherimides
- 专利标题（中）： 制备聚醚酰亚胺的方法
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申请号： US684960申请日： 1984-12-21
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公开(公告)号： US4689391A公开(公告)日： 1987-08-25
- 发明人: Edward N. Peters , Daniel W. Fox
- 申请人： Edward N. Peters , Daniel W. Fox
- 申请人地址： MA Pittsfield
- 专利权人： General Electric Company
- 当前专利权人： General Electric Company
- 当前专利权人地址： MA Pittsfield
- 主分类号： C08G73/10
- IPC分类号： C08G73/10
摘要：
A process for making polyetherimides involving reacting an aromatic bis(ether anhydride) with an organic diamine in the presence of a solvent so as to form a polyamide acid. The polyamide acid is thereafter polymerized in a solid state at a temperature below the glass transition temperature of the final polyetherimide.
公开/授权文献
- US5696442A Rotational velocity sensor ring apparatus and method 公开/授权日：1997-12-09
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