申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0443688A2
公开(公告)日:1991-08-28
Novel oligomers comprising 1,6-diaza [4.4] spirodilactam moieties, having an aryl substituent attached to each spiro ring nitrogen atom, polyether sulfone moieties and chain terminating groups comprising terminal carbon to carbon or carbon to nitrogen unsaturation.
由 1,6-二氮杂[4.4]螺二内酰胺分子(每个螺环氮原子上都有一个芳基取代基)、聚醚砜分子和由碳到碳或碳到氮不饱和末端基团组成的链终止基团构成的新型低聚物。