| 摘要 |
A coating layer exhibiting excellent durability and sufficient lubricating properties when moist, the coating layer containing a reaction production of: a diisocyanate compound (a) selected from a group comprising an aromatic diisocyanate, an aliphatic diisocyanate, and an alicyclic diisocyanate; a polyol (b); and a copolymer (c) having a functional group selected from a group comprising a carboxylic acid group, a carboxylic acid ester group, and a carboxylic acid anhydride group. |
