| abstract |
(57) [Problem] By containing a thermosetting resin composition, the composition can be cured at a high curing rate while having good storage stability before curing. SOLUTION: A plurality of phenol units constituting a calixarene or a derivative thereof is composed of two or more phenol units, and a phenolic hydroxyl group in some or all of the phenol units is acylated. O-acylated calixarene or a derivative thereof, and a thermosetting resin containing this compound as an active ingredient (preferably, a thermosetting resin having an epoxy group) And a thermosetting composition containing the compound. |