Accordingly, the molar ratio of {HEAD ~ ethylene} to feed {TAIL ~ material} may range from greater than about 0.8/1 to typically less than about 20/1 
Accordingly , the molar ratio of { HEAD ~ ethylene } to feed { TAIL ~ material } may range from greater than about 0.8/1 to typically less than about 20/1
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH