Process for preparing polyureas utilizing immiscible phases

Claim 1

A PROCESS FOR PREPARING A POLYUREA WHICH COMPRISES BRINGING TOGETHER IN THE PRESENCE OF AN ACID ACCEPTOR FOR ACID PRODUCED BY THE POLYMERIZING COMPLEMENTARY REACTANTS, COMPLEMENTARY REACTANTS AT A TEMPERATURE WITHIN THE RANGE OF -10* TO +100*C., THE ONE REACTANT COMPRISING AN ORGANIC DIAMINE SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC PRIMARY AND SECONDARY DIAMINES IN WHICH THE REACTIVE AMINO GROUPS ARE SEPARATED BY A LINEAR CHAIN OF AT LEAST 4 ATOMS AND BASIC AROMATIC PRIMARY AND SECONDARY DIAMINES IN WHICH THE SHORTEST CARBON CHAIN CONNECTING THE REACTIVE AMINO GROUPS INCLUDES AT LEAST THREE CARBON ATOMS OF ONE RING, THE SAID ORGANIC DIAMINES BEING THE DISPERSED ELEMENT OF AN AQUEOUS DISPERSION, THE SECOND REACTANT COMPRISING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF PHOSGENE AND THIOPHOSGENE, MIX ING THE SAID REACTANTS TO FORM A MULTIPHASE SYSTEM IN WHICH THE DIAMINE AND THE SECOND REACTANT ARE IN SEPARATE PHASES AND MAINTAINING THE PHASES IN ADMIXTURE WITHIN THE TEMPERATURE RANGE OF -10* TO +100*C. UNTIL AN INTERPHASE CONDENSATION POLYMERIZATION HAS TAKEN PLACE WITH FORMATION OF SPINNABLE POLYUREN.