58.50 wt % of {HEAD ~ an oligomer} prepared by {TAIL ~ 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 
prepared by
58.50 wt % of { HEAD ~ an oligomer } prepared by { TAIL ~ 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
OTH OTH OTH OTH HEAD 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 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