| abstract |
(57) Abstract: Provided is a thermosetting resin composition having a dihydrobenzoxazine ring, which has improved moldability and curability without deteriorating various properties such as deteriorating mechanical properties, and a cured product thereof. To do. A thermosetting resin composition comprising (A) a thermosetting resin having a dihydrobenzoxazine ring, (B) a phenol resin, and (C) a phosphorus-based curing accelerator, and a cured product thereof. |