A surprising feature of the invention involves the discovery that while {TAIL ~ the coating compositions} of the invention are known to provide strong adhesive bonds to metal substrates, the same coatings have failed to provide bonds of satisfactory strength on {HEAD ~ synthetic plastic substrates} 
A surprising feature of the invention involves the discovery that while { TAIL ~ the coating compositions } of the invention are known to provide strong adhesive bonds to metal substrates , the same coatings have failed to provide bonds of satisfactory strength on { HEAD ~ synthetic plastic substrates }
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