| 摘要 |
PURPOSE: Provided is a coating agent for silver layer of synthetic leather, which is produced by using poly methyl methacrylate diol, improves the gloss of a surface and gives softness and natural wrinkles. CONSTITUTION: The coating agent comprises a polyurethane resin, a surfactant, a pigment, a solvent, and additives, wherein the polyurethane resin is produced by reacting poly tetramethylene ether glycol, ester type polyol, and diisocyanate in a solvent, followed by adding and reacting the poly methyl methacrylate diol having a molecular weight of 1000-5000, a chain extender, and the diisocyanate. Further, the additives contain silicone polyether copolymer having a molecular weight of 10000-30000. |
