Back to results
US 6,169,122 AGranted
Microcellular articles and methods of their production
AssigneeTrexel, Inc.
InventorsKent Blizard, Kelvin T. Okamoto, Jere R. Anderson
Life of this patent
Estimating the term…
Abstract
Semi-crystalline microcellular foams that include a midlevel amount of nucleating agent, and methods of their production, are provided. The microcellular foams can be produced in typical polymer processing techniques such as extrusion, injection molding and blow molding. The foams exhibit excellent mechanical properties and can be formed over a broad range of density into a number of different foam articles.
Claims21
A polymeric article comprising:
- a matrix of polymeric material including a plurality of cells and having an average cell size of less than 60 microns,
- the polymeric material comprising a semi-crystalline polymer, and a nucleating agent in an amount between about 2.5 and about 7 weight percent, by weight of the polymeric material.
Dependencies are inferred from the claim text.