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Multi-process molding method and article produced by same

  • US 6,475,424 B1
  • Filed: 05/14/1998
  • Issued: 11/05/2002
  • Est. Priority Date: 05/14/1998
  • Status: Expired due to Fees
First Claim
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1. A method of manufacturing a molded article comprising the steps of:

  • inflating a blow moldable article to form a blow molded article having an outer surface;

    inserting the blow molded article within an interior cavity of a mold;

    inserting moldable fluid material within the interior cavity of the mold adjacent the outer surface of the blow molded article;

    during said step of inserting the moldable fluid material, applying cooling fluid within the blow molded article at a temperature sufficient to maintain the shape of the blow molded article; and

    selecting the temperature of the cooling fluid based on the melting temperature of the blow molded article and the heat transfer from the moldable fluid material to prevent the blow molded article from losing structural integrity due to the heat transfer from the moldable fluid material.

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