a process is provided for the manufacture of shaped articles by molding a thermoplastic resin and filler . the process comprises mixing a thermoplastic resin with a filler preheated to a temperature at which the filler will have an amount of heat sufficient for heating the resin to its melting point and which is 50 ° to 200 ° c higher than the same melting point , and subjecting the mixture to molding into articles of desired forms and sizes . various sorts of molding machines can be used , and the manufacturing costs are low .