Patent ID: 7897261

Claim:
A coating composition comprising: (a) a polymer containing reactive functional groups; (b) a curing agent having reactive functional groups that are reactive with the functional groups in the polymer in (a); and (c) a polymeric material different from (a) and (b), comprising functional groups, wherein the functional groups in components (a) and (b) are more reactive with each other than with the functional groups in component (c) such that upon curing, at least a portion of the functional groups on component (c) remain unreacted; and wherein a coating layer formed from the composition upon application to a substrate has surface regions and a bulk region, and the concentration of component (c) at one or more surface regions is greater than the concentration of component (c) in the bulk region of the coating layer; and wherein the coating composition is substantially pigment-free; and wherein component (c) comprises a copolymer formed by copolymerizing one or more functional monomers containing borate as the functional portion and a β,β-substituted olefin having the Formula (I): H 2 C═CR 2 R 3 (I) wherein R 2 and R 3 are independently C 1 -C 10 linear, branched, or cyclic.