| 摘要 |
The invention particularly relates to curable compositions comprising at least one polyisocyanate, at least one amine that is blocked by means of aldehyde or ketone, and at least one carboxylic acid hydrazide or sulfonic acid hydrazide which has a minimum melting point of 100° C., especially at least 150° C. Surprisingly, after being cured using moisture at room temperature and when being heated to increased temperatures, significantly fewer volatile components of such compositions volatilize than in the corresponding compositions that do not contain said hydrazide.
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