The methacrylic resin composition and its moldings and production methods

A methacrylic resin composition comprising a methacrylic resin containing a structural unit derived from methyl methacrylate 99.5 wt%, The methacrylic resin, the amount of binding amount of terminal double bond to a structural unit derived from methyl methacrylate for the structural unit and methyl methacrylate from less than 0.03 mol% sulfur atom is at least 0.2 mol%, and 230 ° C. and a melt flow rate at conditions of 3.8kg load is 8 g / 10 min or more, the methacrylic resin composition.