The method typically involves dissolving {TAIL ~ polyisobutylene} in {HEAD ~ a solvent} such as hexane to form a tackifier solution, soaking the substrate in the tackifier to produce a preform, and then drying the preform to produce the cleaning medium 
The method typically involves dissolving { TAIL ~ polyisobutylene } in { HEAD ~ a solvent } such as hexane to form a tackifier solution , soaking the substrate in the tackifier to produce a preform , and then drying the preform to produce the cleaning medium
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD 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