50.01 wt % of an oligomer prepared by reaction of: 45.78 wt % of polypropylene glycol, MW=4200, 0.01 wt % of acrylic acid, {HEAD ~ 99%}, 0.04 wt % of 2,6 di tert butyl 4 methylphenol, 2.92 wt % of monomeric toluene diisocyanate, and {TAIL ~ 1.24 wt %} of 2 hydroxyethyl acrylate 
50.01 wt % of an oligomer prepared by reaction of : 45.78 wt % of polypropylene glycol , MW=4200 , 0.01 wt % of acrylic acid , { HEAD ~ 99 % } , 0.04 wt % of 2,6 di tert butyl 4 methylphenol , 2.92 wt % of monomeric toluene diisocyanate , and { TAIL ~ 1.24 wt % } of 2 hydroxyethyl acrylate
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 HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH