{HEAD ~ This blend} of {TAIL ~ urethane diol} and polyamide polyol is useful in various polymer formulations 
of
{ HEAD ~ This blend } of { TAIL ~ urethane diol } and polyamide polyol is useful in various polymer formulations
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH