the acrylic polymer is a copolymer of a monomer mixture comprising an alkyl acrylate having an alkyl group of 12 or more carbon atoms and a reactive acrylate having a functional group capable of reacting with an amino group, wherein the urethane group is introduced by {HEAD ~ a reaction} between {TAIL ~ the functional group} capable of reacting with an amino group, an amino alcohol and a polyvalent isocyanate compound, and 
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the acrylic polymer is a copolymer of a monomer mixture comprising an alkyl acrylate having an alkyl group of 12 or more carbon atoms and a reactive acrylate having a functional group capable of reacting with an amino group , wherein the urethane group is introduced by { HEAD ~ a reaction } between { TAIL ~ the functional group } capable of reacting with an amino group , an amino alcohol and a polyvalent isocyanate compound , and
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 OTH 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 TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH