The viscosity of the second polymer is not greater than {HEAD ~ about 10 percent} of {TAIL ~ the viscosity} of the first polymer measured at 170° C 
of
The viscosity of the second polymer is not greater than { HEAD ~ about 10 percent } of { TAIL ~ the viscosity } of the first polymer measured at 170 ° C
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH