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Polyethylene (PE) Foams

Patents with Abstracts

*5/24/2012

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Patents with Abstracts

8,178,014 
Methods of forming an elongated ethylenic foam structure
 
Cushman of Bay Foam Products, Wisconsin, developed an extruded, low-density, ethylenic polymer foam including from about 86% by volume to about 98% by volume open cells and a continuous, impervious surface skin.  The foam possesses superior compression recovery and lower compression resistance when compared with similarly comprised ethylenic closed-cell foams and superior moisture resistance and handling characteristics when compared to open-cell foams.  The extrusion temperature may be adjusted based on the desired properties of the foam, such as composition, diameter and open-cell content.  Processing conditions during extrusion are controlled such that the resulting foam includes from about 40% by volume open cells to about 80% by volume open cells. Maintaining the proper temperatures is important in forming the desired ratio of open to closed cells and in obtaining an essentially integral surface skin. (RDC 5/24/2012)

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Roger D. Corneliussen
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Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen
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** Date of latest addition; date of first entry is 5/24/2012.