Controlled Skin Formation for Foamed Extrudate

Abstract

The present invention is directed to the extrusion of plastics, and more specifically to a method for achieving a very smooth extrudate surface using thermoplastic syntactic foam materials. It is a general purpose and object of the present invention to disclose a method and apparatus to control the skin formation of a foamed extrudate. It is a further object to employ an insulating plate to shield and control cooling of the die used to extrude the foam such that a low density extrudate with a solid skin and inner foamed core is achieved.

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Document Details

Document Type
Technical Report
Publication Date
Nov 09, 2006
Accession Number
ADD020273

Entities

People

  • Donald V. Beauregard

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Gaps
  • Communication Systems
  • Compression Ratio
  • Extrusion
  • Heat Transfer
  • Hydrostatic Pressure
  • Inventions
  • Low Density
  • Macrophages
  • Materials
  • Metallocenes
  • Patents
  • Plastics
  • Rhode Island
  • Syntactic Foams
  • Undersea Warfare
  • United States

Readers

  • Polymer Science and Engineering.
  • Thermal Physics or Thermal Science.

Technology Areas

  • Microelectronics