a curing agent comprising a plurality of {HEAD ~ groups} that are reactive with the functional groups on {TAIL ~ compound}  
a curing agent comprising a plurality of { HEAD ~ groups } that are reactive with the functional groups on { TAIL ~ compound }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH