What is claimed is:
1. A curable coating composition comprising a mixture of:
(a) a curable polyester comprising at least 10 mol % succinic acid, at least one additional diacid and at least one diol,(b) a cross-linking agent; and(c) a solvent.
This application claims priority to U.S. provisional application No. 62/218,384 filed on Sep. 14, 2015, the content of which is incorporated herein by reference in its entirety for all purposes.