申请人:Standard Oil Company (Indiana)
公开号:US04490545A1
公开(公告)日:1984-12-25
Cyclic dianhydrides and polyimides are prepared from maleic anhydride compounds and diolefins. The diolefins are alpha-, omega-linear diolefins of up to 100 carbon atoms or cyclic diolefins of up to 40 carbon atoms. The polyimides and copolyimides prepared from these cyclic dianhydrides are useful in films, fibers and coatings.
环状二酐和聚酰亚胺是由马来酸酐化合物和二烯基制备的。二烯基是长度最长可达100个碳原子的α-,ω-线性二烯基或长度最长可达40个碳原子的环状二烯基。从这些环状二酐制备的聚酰亚胺和共聚酰亚胺在薄膜、纤维和涂层方面有用。