METHOD FOR PRODUCING CURED BODY AND METHOD FOR PRODUCING MOLDED BODY

The present invention provides: a method for producing a cured body, the method being excellent in terms of moldability during the time of curing of a thermosetting resin composition and the glass transition temperature of the cured body; and a method for producing a molded body that contains a cured body. The present invention specifically provides a method for producing a cured body, the method comprising a first heating step. In the first heating step, a first heating part preheated to a temperature TH1 (°C) is used for the purpose of heating a resin composition that is in direct contact with the first heating part, or heating the resin composition that is disposed on the first heating part with a solid heat medium being interposed therebetween. The resin composition contains a compound (A) that has at least two epoxy groups in each molecule, an acid anhydride-based curing agent (B) and a curing accelerator (C). The curing accelerator (C) contains at least one curing accelerator that is selected from the group consisting of an imidazole-based curing accelerator, an amine-based curing accelerator, an ammonium salt-based curing accelerator, a phosphine-based curing accelerator, a phosphonium salt-based curing accelerator, a urea-based curing accelerator, and a fatty acid salt-based curing accelerator. The temperature TH1 satisfies formula (1) T1 - 20 ≤ TH1 ≤ T1 + 20. In formula (1), T1 (°C) represents the temperature expressed by formula (2) T1 (°C) = 184 × (Z/M × 100)-0.07 - 40. In formula (2), M (mol) represents the substance amount of acid anhydride groups in the resin composition, and Z (mol) represents the substance amount of the curing accelerator in the resin composition. La présente invention concerne : un procédé de production d'un corps durci, le procédé étant excellent en termes d'aptitude au moulage pendant le temps de durcissement d'une composition de résine thermodurcissable et de la température de transition vitreuse du corps durci ; et un procédé de production d'un corps moulé qui contient un corps durci. La présente invention concerne spécifiquement un procédé de production d'un corps durci, le procédé comprenant une première étape de chauffage. Dans la première étape de chauffage, une première partie de chauffage préchauffée à une température TH1 (°C) est utilisée dans le but de chauffer une composition de résine qui est en contact direct avec la première partie de chauffage, ou de chauffer la composition de résine qui est disposée sur l