Epan U 105-hexamethylene diisocyanate block copolymer Ethylene oxide-HDI-propylene oxide block copolymer Ethylene oxide-hexamethylene diisocyanate-propylene oxide block copolymer Ethylene oxide-HMDI-propylene oxide block copolymer Ethylene oxide-propylene oxide-hexamethylene diisocyanate block copolymer Excenol 510-HDI block copolymer HDI-ethylene oxide-propylene oxide block copolymer Hexane, 1,6-diisocyanato-, polymer with methyloxirane and oxirane, block Oxirane, 2-methyl-, polymer with 1,6-diisocyanatohexane and oxirane, block Oxirane, methyl-, polymer with 1,6-diisocyanatohexane and oxirane, block Oxirane, polymer with 1,6-diisocyanatohexane and methyloxirane, block