| 摘要 |
PURPOSE: Resin and paint compositions for laser etching are provided to ensure excellent high clarity, highly glossiness, and high smoothness while satisfying automobile interior standard as a paint for automobile interiors. CONSTITUTION: A resin composition for laser etching includes 0.9~1.5 equivalent of isocyanate based on 1 equivalent of an acrylic resin in which an acid value is 2~10 mgKOH/g, a hydroxyl value 20~50mgKOH/g, average molecular weight is 1000~15000, and Tg is 20~50°C. The acrylic resin is obtained by solution-polymerizing a carboxyl group, hydroxyl group, and methacrylic acid ester monomer. The resin composition for laser etching includes 50~60 weight% of the resin composition, 3~6 weight% of pigment, 10~20 weight% of hardener, 0.5~5 weight% of additive, 0.1~10 weight% of dispersing agent, and 26~36 weight% of solvent. |
