Electromagnetic wave shielding material
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United States of America Patent
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May 10, 1994
Issued Date -
N/A
app pub date -
Jun 29, 1992
filing date -
Jul 31, 1990
priority date (Note) -
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Abstract
An electromagnetic wave shielding material comprises a composite carbon-resin compound obtained by reacting to proceed polymerization of a resin forming material with carbon powder intermixed therewith. The resulting compound has carbon powder substantially uniformly dispersed in the resin and exhibit superior electromagnetic wave shielding effect, in addition to good fire resistance. The resin may be phenol, melamine, furan or the like, and the carbon powder is preferred to be incorporated at a content of not less than 40% of the total weight.
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