METHOD FOR PREPARING ALIPHATIC DIISOCYANATES

摘要

The present invention relates to a method of producing aliphatic diisocyanates. More specifically, the present invention relates to the method of producing aliphatic diisocyanates at high yield produced by adding poly ethylene glycol monomethyl ether (PEGME) as a polymerization inhibitor when pyrolyzing the aliphatic dicarbamates. The method of producing aliphatic diisocyanates has effects of: producing the aliphatic dicarbamates at high yield while preventing the production of polymeric by-products during a reaction; and being environmentally-friendly as phosgene is not used during the reaction.