The composition may alternatively or in addition contain {HEAD ~ a “viscosity improver}” such as {TAIL ~ an elastomeric polymer} with a low glass transition point, which by increasing the viscosity of the solution improves its performance as a filling material 
such as
The composition may alternatively or in addition contain { HEAD ~ a “ viscosity improver } ” such as { TAIL ~ an elastomeric polymer } with a low glass transition point , which by increasing the viscosity of the solution improves its performance as a filling material
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH