The process 10 wherein {HEAD ~ the temperature} in step is above {TAIL ~ 340° C.} and the temperature in step is in the range of about 400° C. to about 500° C 
The process 10 wherein { HEAD ~ the temperature } in step is above { TAIL ~ 340 ° C. } and the temperature in step is in the range of about 400 ° C. to about 500 ° C
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH