The polyisocyanate derived adduct includes {HEAD ~ the reaction product} of {TAIL ~ a urethane prepolymer} and a capping agent, and is free of residual unreacted —NCO groups 
of
The polyisocyanate derived adduct includes { HEAD ~ the reaction product } of { TAIL ~ a urethane prepolymer } and a capping agent , and is free of residual unreacted — NCO groups
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH