Patent ID: 7803305
Filing Date: 2010-09-28
Classification: A61B,B01L,B29C,B29L,Y10T

Abstract:
1. A process for fabricating a container having a bottom wall, a top edge, and a sidewall between the bottom wall and top edge, comprising the steps of: providing a first molten polymeric material and a second molten polymeric material, the first and second polymeric materials being non-compatible; and directing the first and second molten polymeric materials through a nozzle section, a cold sprue and into a mold cavity that comprises a region for integrally forming the bottom wall of the container, wherein the first and second molten polymeric materials co-flow in the mold cavity for at least a portion of the fabrication process, wherein, during the co-flow, the nozzle section directs the first and second molten polymeric materials into the mold cavity as inner and outer skin layers of the first molten polymeric material with a core layer of the second molten polymeric material between the inner and outer skin layers, removing the solidified first and second polymeric materials from within the cold sprue.