PROBLEM TO BE SOLVED: To prevent a shrink liable to occur of a molded product and leakage of coating from a mold, in performing in-mold coating molding wherein the mold clamping force exerted at a resin cooling time, when the shape of a resin molded product is decided, is made equal to the mold clamping force at a coating curing time, for controlling the deformation of the mold occurring when molded to uniformize the thickness of the coating.;SOLUTION: During a coating curing process (fourth process), the initial mold clamping force is increased in multi-stages at least two steps or more to be the final mold clamping force, and during a resin molding process (second process), the initial mold clamping force is decreased to be the final mold clamping force. In this invention, during the coating curing process when the mold clamping force is increased, the viscosity of the coating within the mold is increased to cause the coating hard to flow, preventing the leakage of the coating flowing out of the mold and also the shrink of the molded product occurring even during the resin molding process.;COPYRIGHT: (C)2008,JPO&INPIT
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