| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water-based coating composition giving a wear-resistant coating film having a low surface friction and suitable for applying to an EPDM rubber. SOLUTION: The water-based coating composition comprises (a) 10-70 wt.% of at least one polyurethane polymer bearing at least two carboxy groups, (b) 1-60 wt.% of at least one crosslinking agent, (c) 0.01-4 wt.% of at least one wetting agent, (d) 0.1-15 wt.% of at least one slip auxiliary, and (e) 0.01-20 wt.% of a UV stabilizer, all based on the weight of the water-based coating composition.</p> |
