{HEAD ~ 58.50 wt %} of {TAIL ~ an oligomer} prepared by reaction of: 51.68 wt % of polypropylene glycol, MW=4200, 0.09 wt % of 2,6 di tert butyl p cresol, 4.76 wt % of isophorone diisocyanate, 0.03 wt % of dibutyl tin dilaurate, and 1.94 wt % of 2 hydroxyethyl acrylate 
of
{ HEAD ~ 58.50 wt % } of { TAIL ~ an oligomer } prepared by reaction of : 51.68 wt % of polypropylene glycol , MW=4200 , 0.09 wt % of 2,6 di tert butyl p cresol , 4.76 wt % of isophorone diisocyanate , 0.03 wt % of dibutyl tin dilaurate , and 1.94 wt % of 2 hydroxyethyl acrylate
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH