In still another aspect, {HEAD ~ this invention} relates to {TAIL ~ substrates} that are treated with fluorochemical compounds 
relates to
In still another aspect , { HEAD ~ this invention } relates to { TAIL ~ substrates } that are treated with fluorochemical compounds
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH