Optionally, the abrasive compositions also will contain {HEAD ~ at least one viscosity} modifying {TAIL ~ organic diluent} 
modifying
Optionally , the abrasive compositions also will contain { HEAD ~ at least one viscosity } modifying { TAIL ~ organic diluent }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL