A process of preparing a polymer modified asphalt comprising mixing {TAIL ~ a predetermined amount} of a polymer asphalt master batch with a predetermined amount of an asphalt cross linking {HEAD ~ agent blend} 
A process of preparing a polymer modified asphalt comprising mixing { TAIL ~ a predetermined amount } of a polymer asphalt master batch with a predetermined amount of an asphalt cross linking { HEAD ~ agent blend }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD