发明授权
US4959447A Copoly(imidine-imide) 失效
共聚(亚胺酰亚胺)

Copoly(imidine-imide)
摘要:
A copoly(imidine-imide) consisting of a copolymer of polyimidines and polyimides having, in the basic chain structure of the polymer, imidine structures represented by formula (I) and the imide structures represented by formula (II): ##STR1##
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