The curable composition 1, wherein the organopolysiloxane is a reaction product of a mixture comprising {HEAD ~ a compound} of {TAIL ~ Formula} 5; and an organopolysiloxane represented by an average composition formula of Formula 6 or 7: 
of
The curable composition 1 , wherein the organopolysiloxane is a reaction product of a mixture comprising { HEAD ~ a compound } of { TAIL ~ Formula } 5 ; and an organopolysiloxane represented by an average composition formula of Formula 6 or 7 :
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH