Patent ID: 6284182
Filing Date: 2001-09-04
Classification: B29C,Y10S

Abstract:
A method of molding thermoplastic particles into a thin-walled article in a mold arrangement including a generally hollow mold housing having a thin mold tool provided on one side thereof and having a contoured front mold face which defines a mold cavity, the mold housing along with a back surface of the mold tool defining a fluid chamber within the interior of the mold housing, said method comprising the steps of:partially filling the mold housing chamber with a defined quantity of heated liquid until the back surface of the mold tool is covered with liquid to heat same;adding heat to the liquid within the mold housing chamber to maintain the liquid at a predetermined uniform temperature without adding further liquid to the mold housing chamber; andsupplying plastic particles for contact with the heated front face of the mold tool to permit adhering and melting of the particles on the front mold face to form a thin-walled article.