| 摘要 |
<p>Two-component polyurethane composition comprises: (a) a polyol component comprising (a1) castor oil, (a2) at least one alkoxylated aromatic diol, and (a3) at least one polyol having 5-8 hydroxyl groups; and (b) a polyisocyanate component comprising at least one polyisocyanate (b1). Independent claims are also included for: (1) bonding substrate surface, comprising mixing the polyol component (a) and the polyisocyanate component (b) of the two-component polyurethane composition, applying the mixed polyurethane composition on at least one of the surface of the substrate to be bonded, joining within the opening time, and hardening the polyurethane composition; and (2) an adhesively bonded article, which is bonded by the above method.</p> |
