The oil 4, wherein {HEAD ~ the polyol} is selected from {TAIL ~ the group} consisting of 1,3 propanediol, 1,3 butanediol, 2,3 butanediol, 2 ethyl 1,3 propanediol, 2 ethyl 2 butyl 1,3 propanediol, neopentyl glycol, 2,2,4 trimethyl 1,3 pentanediol, trimethylolpropane, and pentaerythritol 
is selected from
The oil 4 , wherein { HEAD ~ the polyol } is selected from { TAIL ~ the group } consisting of 1,3 propanediol , 1,3 butanediol , 2,3 butanediol , 2 ethyl 1,3 propanediol , 2 ethyl 2 butyl 1,3 propanediol , neopentyl glycol , 2,2,4 trimethyl 1,3 pentanediol , trimethylolpropane , and pentaerythritol
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH