Coating compositions

Abstract

Disclosed herein are compositions comprising an epoxy-functional polyester, elastomeric particles, and an accelerator. The epoxy-functional polyester comprises a reaction product of a reaction mixture comprising a polyester, a ring-fused anhydride, and an epoxy. The compositions may comprise a sag control agent. Also disclosed are methods of coating a substrate comprising contacting a surface of the substrate with one of the compositions and substrates comprising a coating on a surface thereof, wherein the coating, in an at least partially cured state, has: an impact resistance at 23° C. and/or at −40° C. of greater than 10 N/mm measured according to ISO 11343 using 0.8 mm thick CRS: a lap shear strength of greater than 12 MPa measured according to ASTM D1002 using 0.8 mm thick hot-dip galvanized steel: and/or a T-peel strength at room temperature of at least 4 N/mm measured according to ASTM D1876 using 0.8 mm thick hot-dip galvanized steel.

Dependencies are inferred from the claim text.