To provide a foam-molded container for a top seal which is excellent in strength of a flange portion even when the flange portion is molded wide, does not easily cause bending or breakage, and is excellent in peeling properties when a top film is peeled because of high shape holding force. A top seal foam molded body having a bottom portion, a sidewall portion extending upward from an outer edge of the bottom portion, and a flange extending outwardly from an upper end of the sidewall portion via a connection portion, the top seal foam molded body having a flat portion on an upper surface of the flange, the connection portion forming a curved surface on a content-side surface, And a thickness (T2) in the perpendicular direction at an intermediate point RM of the arc in the cross-sectional view on the curved surface is larger than a flange thickness (T1)...

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