1,6-Hexanediamine, nonanedioate (1:1), polymer with hexahydro-2H-azepin-2-one 2H-Azepin-2-one, hexahydro-, polymer with 1,6-hexanediamine nonanedioate (1:1) Azelaic acid hexamethylenediamine salt-ε-caprolactam copolymer Nonanedioic acid, compd. with 1,6-hexanediamine (1:1), polymer with hexahydro-2H-azepin-2-one Nylon 6/69 ε-Caprolactam-hexamethylenediamine azelate copolymer