Synonyms: Poly(iminoisophthaloyliminohexamethylene)(8CI); 1,6-Hexanediamine-isophthalic acid copolymer, SRU;1,6-Hexanediamine-isophthaloyl chloride copolymer, SRU;1,6-Hexanediamine-isophthaloyl chloride polymer, SRU; Diphenylisophthalate-1,6-hexamethylenediamine copolymer SRU; Durethan T 40; DurethanVP-KL 1-2104; Hexamethylenediamine-isophthalic acid copolymer, SRU;Hexamethylenediamine-isophthaloyl chloride copolymer, SRU;Hexamethylenediamine-isophthaloyl dichloride copolymer sru;Hexamethylenediamine-isophthaloyl fluoride copolymer, SRU;Hexamethylenediamine-isophthaloyl fluoride polymer, SRU; Hexanediamine-isophthalicacid polymer, SRU; Nydur T 40; Nylon 6I; Poly(hexamethyleneisophthalamide),SRU; Polyamide 6I; isophthaloyl chloride-hexamethylenediamine copolymer, SRU