Desmodur® eco N 7300 is a new curing agent from Covestro for polyurethane coatings and made partially from biomass. Its foundation is pentamethylene diisocyanate, a revolutionary innovation in polyurethane chemistry as it is the first diisocyanate in 30 years to be fully developed and scaled-up.
With 70 percent carbon content derived from non-fossil-based inputs, Desmodur® eco N 7300 aliphatic isocyanate is the first polyurethane crosslinker to feature significant renewable content. It is on par with conventional curing agents for coatings and adhesives, and for some properties even surpasses it. Paints and adhesives formulated with Desmodur® eco N 7300 can be used in diverse applications – automotive, furniture, consumer electronics – potentially wherever HDI trimers are used.