Further, after formation of the shells, crosslinking is carried out in the presence of {TAIL ~ monomers} having a polymerizable unsaturated double bond having a functional group which reacts with the aforesaid crosslinking agents, while the proportion of the aforesaid monomers is at {HEAD ~ most 50 percent} 
Further , after formation of the shells , crosslinking is carried out in the presence of { TAIL ~ monomers } having a polymerizable unsaturated double bond having a functional group which reacts with the aforesaid crosslinking agents , while the proportion of the aforesaid monomers is at { HEAD ~ most 50 percent }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD