POLYUREA CROSSPOLYMER-1

Polyurea Crosspolymer-1 is the complex, crosslinked polymer formed by the reaction between four different isocyanates and PEI-45. The isocyanates used are a trimer of hexamethylene diisocyanate (HDI), saturated methylene diphenyldiisocyanate (SMDI), the monourea of HDI trimer with ammonium cyclohexylaminopropanesulfonate, and HDI.