Low glass transition temperature aromatic polyamide
申请人:The United States of America as represented by the Secretary of the Air
公开号:US04910282A1
公开(公告)日:1990-03-20
There is provided an aromatic polyamide having repeating units of the formula: ##STR1## wherein X is -O-, -S-, -CO- or -SO.sub.2 - and y has a value of 1 or 2. Also provided is an aromatic polyamide having repeating units of the formula: ##STR2## and a new composition of matter 3-[4-(3-aminophenoxy benzoyl)phenoxy] benzoic acid.