Prepreg, fiber-reinforced composite material, and method for producing molded body

Abstract

A prepreg may exhibit excellent handling properties and be obtained using a resin composition that can be cured in a short amount of time and can suppress resin flow during molding. Such a prepreg may include an epoxy resin composition and reinforcing fibers. The epoxy resin composition may contain a (A) a urea compound, (B) a thermoplastic resin, (C) an epoxy resin having an oxazolidone structure, and (D) a bisphenol-type epoxy resin that is solid at 25° C. The epoxy resin composition may satisfy condition (1): a minimum viscosity of the epoxy resin composition measured with a rheometer under a condition of 2° C./min is in a range of from 3.0 to 6.0 Pa·s; and condition (2): a gel time value of the epoxy resin composition measured by a Curelastometer (trade name) at 145° C. is in a range of from 2.0 to 5.0 min.

Dependencies are inferred from the claim text.