PROCESS TO OBTIAN POLYGLYCOLYL UREA FROM AROMATIC DIGLYCINATES FOR ELECTRIC CONDUCTOR INSULATION

摘要

A process for obtaining polyglycolyl urea from aromatic digtycinate to insulate electric conductors without forming HCN polluting residues, characterized because a mixture of methylene bromopropionate and methytenedianitine in aliphatic solvent reacts in presence of a catalizer; the solvent is separate d through distillation, filtration of the mother waters and purification through washing,with water and addition to the resulting product of cresylic acid and methylene diisocyanate under stirring, up to a temperature of 60.degree. C, and additi on of a triethylenediamino catalizer, heating at a temperature of up to 185.degree. C and it is then distilled at a temperature of up to 200.degree. C, obtaining a polyglycolyl urea hydantoin resin.