Patents Examined by Jennifer Kolb Midener
  • Expandable graphite and method
    Patent number: 6416815
    Abstract: Intercalated graphite flake which has enhanced exfoliation volume characteristics at relatively low exfoliation temperatures, e.g., 600° C. and even lower, is made by adding an organic expansion aid to the intercalant solution and heating a blend of intercalated particles and an organic reducing agent in the temperature range of 25° to 125° C.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: July 9, 2002
    Assignee: Graftech Inc.
    Inventors: Ronald Alfred Greinke, Robert Anderson Reyolds, III