| 摘要 |
A curable composition comprising a polymer having two or more thiol groups p er molecule, a compound having two or more isocyanate groups per molecule, and carbon black and further containing a filler consisting mainly of silicic ac id or a silicate or an organic filler consisting mainly of pulverized coal. The main ingredient has satisfactory storage stability. Even after storage of th e main ingredient, the composition has satisfactory curability and gives a cur ed article having sufficient breaking strength, hardness, and gas-barrier properties. The curable composition is hence suitable for use as a sealing material for double glazings, vehicle window frames, etc. The curable composition preferably further contains a hydrocarbon plasticizer and an organometallic compound. This composition is a high-performance curable composition which attains even higher mechanical strength and gas-barrier properties. |
