Patents Assigned to Touchstone Research Lab.
  • Coal-based carbon foam
    Patent number: 6656238
    Abstract: A method for the manufacture of coal-based carbon foams from a coal particulate starting material that comprises blending from 1 to about 10% by weight of pitch with the coal particulate before foaming. Blends of coal-based particulate with 1 to about 10% by weight of pitch as well as coal-based carbon foams manufactured from such blends are also described.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: December 2, 2003
    Assignee: Touchstone Research Lab.
    Inventors: Darren Kenneth Rogers, Janusz Wladyslaw Plucinski
  • Blended pitch/coal based carbon foams
    Patent number: 6656239
    Abstract: According to the present invention, carbon foams are produced largely in accordance with the methods described in U.S. patent application Ser. No. 09/902,828, but with starting materials that comprise from about 10 to about 90% by weight of ground petroleum pitch and from about 90 to about 10% by weight of bituminous coal particulate exhibiting a free swell index of from about 3.5 to about 5.0.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: December 2, 2003
    Assignee: Touchstone Research Lab.
    Inventors: Darren Kenneth Rogers, Janusz Wladyslaw Plucinski