To provide a methacrylate material excellent in heat resistance which does not cause cracking on the surface even in the use environment of 200°C or more.

The molded product is produced by curing a resin composition including the following components (A) to (D): (A) 30 to 60 pts.wt. of a monomer mixture which comprises a monofunctional unsaturated monomer essentially comprising methylmethacrylate and a polyfunctional unsaturated monomer having at least two radically polymerizable double bonds in a molecule; (B) 40 to 70 pts.wt. of resin particles comprising particles made of a polymer of an unsaturated monomer essentially comprising methyl methacrylate as a partially cosslinked resin; (C) a radical polymerization initiator; and (D) a hindered phenol type compound which has at least one tertiary butyl group on an ortho position of a phenolic hydroxide group.