| 摘要 |
PURPOSE:To obtain a conveyer belt-repairing agent which can perfectly repair partial defects of conveyer belts simply in a shortened time by adding a specific amount of a thixotropic agent to a liquid diene polymer bearing terminal hydroxyl groups and a polyisocyanate. CONSTITUTION:The subject repairing agent is composed of, as essential components, (A) a hydroxyl-terminated diene polymer liquid of 300 to 30,000 average molecular weight, and (B) an aromatic, aliphatic or alicyclic polyisocyanate, further additionally (C) 0.1 to 150 pts.wt., preferably 0.2 to 100 pts.wt., per 100 pts.wt. of component (A), of a thixotropic agent, preferably composed of aerosil and carbon black. |
