Patent ID: 7794643
Filing Date: 2010-09-14
Classification: B29C,B29D,B29L,Y10T

Abstract:
1. A method of molding an object with a mold having at least one transfer face, comprising the steps of: filling a melted thermoplastic material into a cavity space, defined by the mold, the melted thermoplastic material having a temperature greater than a softening temperature of the thermoplastic material, the mold having a temperature lower than the softening temperature of the thermoplastic material, the melted thermoplastic material being contacted to the at least one transfer face of the mold and being cooled by contacting the mold; detecting a temperature of the thermoplastic material; separating the transfer face from a surface portion of the melted thermoplastic material, based on temperature information detected, to form a heat-insulating layer between the melted thermoplastic material and the transfer face; re-melting the surface portion of the thermoplastic material with a heat energy retained inside the thermoplastic material having a temperature still greater than the softening temperature of the thermoplastic material under a condition that the melted thermoplastic material is separated from the transfer face of the mold; re-contacting the surface portion of the re-melted thermoplastic material closely to the transfer face of the mold based on temperature information detected; cooling the melted thermoplastic material to a temperature lower than the softening temperature of the thermoplastic material; and removing the cooled thermoplastic material from the mold.