Patent ID: 6596218
Filing Date: 2003-07-22
Classification: B29C,B29K

Abstract:
A method of producing a composite molded plastic article having at least one layer of a web material and a layer of a plastic mass, comprising the steps of:a) placing a thermally insulated web material between confronting mold halves of an injection mold; b) closing the injection, mold, thereby deforming the web material; c) applying at least one pressure selected from the group consisting of negative pressure on one side of the web material and positive pressure on the other side of the web material; d) introducing plastified plastic mass at a feed rate via an injection point into a cavity of the injection mold and simultaneously opening the injection mold at an opening speed until reaching a predetermined position, whereby the feed rate of the plastic mass and the opening speed of the injection mold are coordinated with one another; e) maintaining a fixed opening gap between the confronting mold halves of the injection mold and continuing to feed plastic mass into the mold cavity; f) closing of the injection mold to form a finished plastic article; and g) removing the plastic article.