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Advanced Thermal Insulation by Pore Morphology Control in Foaming

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A foam extrusion slot die is provided, comprising a plurality of parallel dividers extending transversely across the slot, wherein the plurality of dividers define a plurality of adjacent rectangular slit openings, each having a length extending perpendicularly across the lateral length of the slot die. An article of manufacture is provided, comprising a polymer material system with at least 95% porosity comprising greater than 10%>asymmetrical pores. A method for an article of manufacture is provided comprising: extruding polymer material through an extruder die opening having an output orifice partitioned by a plurality of parallel dividers defining a plurality of adjacent slit openings each having a vertical height greater than a lateral width.
Yang, Arthur Jing-min (York, PA)
14/ 785,226
April 18, 2014
[0002] The work of this application was supported by grant number DE-EE0003983 from the United States Department of Energy. Thus, the U.S. government may have certain rights in this invention.