申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0372656A2
公开(公告)日:1990-06-13
Linear alternating copolymers derived from units (A) of 1,6-di(4-oxyphenyl)-1,6-diazaspiro[4.4]nonane-2,7-dione and units (B) selected from carbonyl, phenylene-dicarbonyl, carbonyl-diphenylene and cyanophenylene.
由 1,6-二(4-氧苯基)-1,6-二氮杂螺[4.4]壬烷-2,7-二酮单元(A)和选自羰基、苯基二羰基、羰基二苯基和氰基苯基的单元(B)衍生的线性交替共聚物。