Reduced puffing needle coke from coal tar
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United States of America Patent
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Aug 30, 2011
Grant Date -
Dec 3, 2009
app pub date -
Jun 3, 2008
filing date -
Jun 3, 2008
priority date (Note) -
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Abstract
A reduced puffing needle coke is formed, which includes a lesser amount of nitrogen within the coke so that carbon articles produced from such coke experience minimal expansion upon heating to graphitization temperatures.
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