Synonyms: Poly(iminohexamethyleneiminosuberoyl)(8CI); 1,6-Diaminohexane-suberic acid polymer, SRU; 1,6-Hexanediamine-subericacid polymer, SRU; Hexamethylene diisocyanate-octanedioic acid copolymer, SRU;Hexamethylenediamine-octanedioic acid copolymer, SRU;Hexamethylenediamine-suberic acid polymer, sru; Nylon 68; Nylon 68, SRU; PA 68;Poly(hexamethylene suberamide), SRU; Polyamide 68; Polycaprolactam 68