| 摘要 |
PROBLEM TO BE SOLVED: To provide a curable composition in which blistering at hot water immersion is reduced, in a curable composition of a liquid polysulfide polymer of a thiol group terminal.SOLUTION: A curable composition includes: a liquid polysulfide polymer of a thiol group terminal; and a compound having at least two isocyanate groups in one molecule, wherein a volume expansion coefficient is at most 10% when being immersed in hot water at 80°C for 10 days, and the liquid polysulfide polymer is shown by HS-(R-S)-R-SH, wherein x is an integer 1 to 5, the average value of x is 1 to 2.5, n is an integer of 1 to 200, and R is a divalent or trivalent organic group including -OCHO-. |
