a curing agent selected from {TAIL ~ the class} consisting of {HEAD ~ aminoplast resins}, phenoplast resins, blocked or semiblocked polyisocyanates 
a curing agent selected from { TAIL ~ the class } consisting of { HEAD ~ aminoplast resins } , phenoplast resins , blocked or semiblocked polyisocyanates
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH