Polyisobutylene is disposed on the surface of the fibers to form {HEAD ~ treated fibers} having {TAIL ~ a treated thickness} 
having
Polyisobutylene is disposed on the surface of the fibers to form { HEAD ~ treated fibers } having { TAIL ~ a treated thickness }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL