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