Pitch based graphite fabrics and needled punched felts for fuel cell gas diffusion layer substrates and high thermal conductivity reinforced composites
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United States of America Patent
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Aug 31, 2004
Grant Date -
Feb 12, 2004
app pub date -
Aug 7, 2002
filing date -
Aug 7, 2002
priority date (Note) -
Expired
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Abstract
A pitch precursor yarn, which is stretch broken and formed into a fabric or felt which is heat treated into graphitic fiber media for fuel cell gas diffusion layer substrates and high thermal conductivity reinforced composites.
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