COATING COMPOSITION HAVING IMPROVED INTERCOAT ADHESION, ITS USE AND MULTI-LAYER COATING COMPOSITE

摘要

The present invention provides a coating composition having improved intercoat adhesion with an under coating layer. The coating composition comprising: (A) a film-forming resin, (B) a crosslinking agent for thermosetting the resin (A), and (C) a phosphate, a sulfonic acid or a carboxylic acid having a long-chain alkyl group of 8 to 18 carbon atoms and HLB of 3 to 12. A solid content of the component (C) is 0.1 to 5 % by weight based on a total solid content of the components (A) and (B). The use of the coating composition and a multi-layer coating composite are also provided.