75H90000 Ethoxylated propoxylated 1,6-hexanediol Ethylene oxide-propylene oxide copolymer 1,6-hexanediol adduct Ethylene oxide-propylene oxide copolymer hexamethylene ether Newpol 75H90000 Oxirane, 2-methyl-, polymer with oxirane, ether with 1,6-hexanediol (2:1) Oxirane, methyl-, polymer with oxirane, ether with 1,6-hexanediol (2:1) Oxirane, polymer with methyloxirane, ether with 1,6-hexanediol (2:1) Polyethylene polypropylene glycol hexanediol ether