VERFAHREN ZUR HERSTELLUNG EINES GEFORMTEN SCHAUMSTOFFGEGENSTANDES.

摘要

Method of producing a molded article of a foamed thermoplastic resin including the steps of: (a) accumulating in an accumulator a molten mass of an expandable thermoplastic resin while preventing it from foaming; (b) ejecting a predetermined quantity of the accumulated thermoplastic resin all at once from the accumulator into the atmosphere so that the ejected thermoplastic resin commences foaming; (c) placing the ejected thermoplastic resin in a mold cavity before thc expansion thereof has been completed; and (d) completing the expansion and molding of the ejected thermoplastic resin in the mold to obtain a foamed molded article.