1,3-Propanediol, 2,2-dimethyl-, polymer with 1,6-diisocyanatohexane 1,6-Hexamethylene diisocyanate-2,2-dimethylpropane-1,3-diol copolymer 2,2-Dimethyl-1,3-propanediol-1,6-diisocyanatohexane copolymer 2,2-Dimethyl-1,3-propanediol-hexamethylene diisocyanate copolymer 2,2-Dimethylpropane-1,3-diol-HDI copolymer Hexamethylene diisocyanate-neopentyl glycol copolymer Hexane, 1,6-diisocyanato-, polymer with 2,2-dimethyl-1,3-propanediol HMDI-neopentyl glycol copolymer