{TAIL ~ These polyfunctional cross linking agents} are generally known as {HEAD ~ polyamidepolyamine epichlorohydrin adducts} 
{ TAIL ~ These polyfunctional cross linking agents } are generally known as { HEAD ~ polyamidepolyamine epichlorohydrin adducts }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD