In addition, {HEAD ~ a bactericide} is from about 0.05 percent to {TAIL ~ about 0.15 percent} and preferably about 0.10 percent, all by weight may be added 
is to
In addition , { HEAD ~ a bactericide } is from about 0.05 percent to { TAIL ~ about 0.15 percent } and preferably about 0.10 percent , all by weight may be added
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH