Waddey & Patterson, P.C.
Reduced puffing needle coke from coal tar distillate
A reduced puffing needle coke is formed, which includes a reduced nitrogen content within the coke so that the coke particles do not experience as much puffing during the formation of graphitized carbon articles produced from such coke upon heating to graphitization temperatures.
GrafTech International Holdings Inc.
C C C
C10C C10B C10B
inventional inventional inventional
Aaron Richard L. Richard T. Irwin C. Douglas J. Ching-Feng
Tomasek Shao Lewis Lewis Miller Chang