| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating composition which improves adhesion to various base materials, weather resistance, and contamination resistance which are faults, without impairing excellent various characteristics of an acrylic lacquer excellent in coating operability, thick coating, and versatility. SOLUTION: A composite film containing a siloxane bond and a urethane bond is formed by reacting with a multifunctional isocyanate and the resin for coating, wherein the resin is obtained from a vinyl copolymer (B) component containing a silyl group which bonds a hydrolysis group with an acrylic resin (A) component containing a hydroxyl group. Consequently, it is possible to improve weather resistance and contamination resistance compared with only and acrylic resin containing a hydroxyl group. Furthermore, it is possible to improve adhesion to various materials which is hard to improve until now by using only polyol. |
