{HEAD ~ Blends} of polyamide polyols and urethane diols are prepared by reacting {TAIL ~ alkyl esters} of polybasic acids with excess alkanolamine to form the polyamide polyol of the polybasic acid and alkyl alcohol 
are prepared by reacting
{ HEAD ~ Blends } of polyamide polyols and urethane diols are prepared by reacting { TAIL ~ alkyl esters } of polybasic acids with excess alkanolamine to form the polyamide polyol of the polybasic acid and alkyl alcohol
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL REL 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