专利名称：Polyimide copolymer precursors发明人：Auman, Brian Carl,Summers, John Donald申请号：EP91116522.3申请日：19910927公开号：EP0479148A2公开日：19920408
摘要：Soluble polymeric precursors having oligomeric imide and amic acid segments,which are suitable to form segmented, preferably insoluble, polyimide copolymers.
申请人：E.I. DU PONT DE NEMOURS AND COMPANY
地址：1007 Market Street Wilmington Delaware 19898 US
国籍：US
代理机构：von Kreisler, Alek, Dipl.-Chem.
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