Process to obtian polyglycolyl urea from aromatic...

Details Process to obtian polyglycolyl urea from aromatic... Process to obtian polyglycolyl urea from aromatic...

C - Chemistry, Metallurgy

08

G

C08G 73/10 (2006.01) C08G 18/38 (2006.01)

Patent

CA 2330895

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 separated 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° C, and addition of a triethylenediamino catalizer, heating at a temperature of up to 185° C and it is then distilled at a temperature of up to 200° C, obtaining a polyglycolyl urea hydantoin resin.

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