These compositions may also be reused, i.e., used for more than one purging operation, and they may be recycled by incorporating the used purge composition into a polymer which is identical to or compatible with {HEAD ~ the polymer} of {TAIL ~ the purge composition} 
These compositions may also be reused , i.e. , used for more than one purging operation , and they may be recycled by incorporating the used purge composition into a polymer which is identical to or compatible with { HEAD ~ the polymer } of { TAIL ~ the purge composition }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL