CURABLE FILM-FORMING COMPOSITIONS (EMBODIMENTS) AND SUBSTRATE THAT DEMONSTRATING PROPERTIES OF SELF-RESTORING

摘要

The present invention is directed to curable film-forming compositions comprising: (a) a polymeric binder comprising a polyester having hydroxyl functional groups; and (b) a curing agent comprising a polyisocyanate having at least three isocyanate functional groups. In certain embodiments, after application to a substrate as a coating and after curing, the compositions demonstrate a Fisher microhardness of at least 120 at ambient temperatures of 15 to 25 °C and a softening point greater than or equal to 35 °C. Additionally, in certain embodiments, after application to a substrate as a coating and after curing, the compositions demonstrate a 20° gloss recovery of at least 75 % when subjected to the dry abrasion test method.