The concentration of {HEAD ~ the isocynate additives} in {TAIL ~ the electrolyte solutions} may be from 1 to 20 weight percent 
in
The concentration of { HEAD ~ the isocynate additives } in { TAIL ~ the electrolyte solutions } may be from 1 to 20 weight percent
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH