Patent ID: 9701863
Date: 2017-07-11
CPC Classifications: C08F,C08G,C09D

Claim:
1. A method to coat a substrate, the method comprising: applying a coating composition to the substrate, wherein the applied coating composition comprises a polymer film comprising a polymer formed from ester monomers, wherein the ester monomers are formed from isocyanate and a blocking agent wherein the polymer comprises a plurality of isocyanate groups, wherein a surface of the polymer film comprises blocked isocyanate groups, and wherein the blocked isocyanate groups comprise a moiety selected from the group consisting of imidazole, 2-methyl imidazole, 4-methyl imidazole, pyrazole, pyrrole, pyrrolidine, morpholine, pyridine, piperidine, alkyl malonate esters, acetoacetic ester, cyanoacetic ester, and combinations thereof.