Poly para phenyleneterephthalamide compositions, their preparation and a process for {HEAD ~ the production} of fibres from {TAIL ~ these compounds} 
Poly para phenyleneterephthalamide compositions , their preparation and a process for { HEAD ~ the production } of fibres from { TAIL ~ these compounds }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL