Abstract
This paper contains the results of an experimental research regarding the synthesis of some types of thermoplastic polyurethane based on 1,6-hexanedyol polyadipate (PAH), 1,4-buthanedyol and ethyleneglycol polyadipate (PABE) and ethyleneglycol polyadipate (PAE) and pure 4,4’-diphenyl-methane-diisocyanate (pure MDI). The thermoplastic polyurethanes were physically and mechanically characterized by observing the characteristics variation mode after the synthesis and also after their processing by dissolution and squeeze for the obtaining of marks with preordained properties. Keywords: polyester, di-isocianate, thermoplastic polyuretane, physical-mechanical properties