Carbon fiber felting material and process for producing the same
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United States of America Patent
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Aug 9, 1994
Grant Date -
N/A
app pub date -
Aug 22, 1991
filing date -
Aug 23, 1990
priority date (Note) -
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Abstract
The disclosed carbon fiber felting material has a bulk density of 0.01 to 0.5 g/cm.sup.3 and a thermal conductivity of at most 1.0 kcal/m.multidot.hr.multidot..degree.C. in the thickness-wise direction thereof at 2,200.degree. C. The carbon fiber felting material is formed through physical and/or chemical interfiber entanglement. The carbon fiber felting material is very stable in an inert atmosphere, and excellent in heat insulating properties in a high-temperature range and against radiant heat transfer in particular.
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