Polyurethane of 2,2'-'tert-butylimino'diethanol and 4,4'-methylenedicyclohexyl diisocyanate, in the form of a solution in N,N-dimethylacetamide, containing by weight >= 50% of polymer
Poliuretan iz 2, 2- (tert-butiloamino)dietanola in 4, 4-metilendicikloheksil diizocianata