1,4-Butanediol, polymer with 5-amino-1,3,3-trimethylcyclohexanemethanamine, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl), 1,1'-methylenebis[4-isocyanatocyclohexane], 4,4'-(1-methylethylidene)bis[phenol] and 2-methyloxirane, polyethylene-polypropylene glycol mono-Bu ether-blocked