Electrically conductive polyethylene foam
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United States of America Patent
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Jan 24, 1989
Issued Date -
N/A
app pub date -
Oct 21, 1987
filing date -
Jan 2, 1985
priority date (Note) -
Expired
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Abstract
An electrically conductive polyethylene foam which is in the form of a profile, e.g. a sheet, having a closed cell foam structure and exhibiting a surface resistivity of not more than 10.sup.5 ohms/square. The sheet is prepared by a continuous method wherein an extruded, foamable, non-crosslinked preform containing a mixture of polyethylene, ethylene copolymer, chemical blowing agent, crosslinking agent and conductive carbon black is heated to produce the foam.
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