A process 1, in which the reaction of {TAIL ~ the terephthaloyl chloride} with {HEAD ~ the para phenylenediamine solution} is carried out continuously 
A process 1 , in which the reaction of { TAIL ~ the terephthaloyl chloride } with { HEAD ~ the para phenylenediamine solution } is carried out continuously
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH