Coating composition, process for forming cured film and coated article

摘要

The present invention provides coating compositions having excellent curability and excellent storage stability, which provide a cured film having good weather resistance, particularly excellent acid resistance. The coating compositions comprise: (a) at least one compound having at least 2 carboxyl groups; (b) a compound having at least 2 epoxy groups; and (c) 0.01 to 3.0 parts by weight based on 100 parts by weight of the total resin solid of an onium salt. The present invention also provides a process for forming a cured film using the coating compositions and an article having the cured film thereon.