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US 6,183,854 B2Granted
Method of making a reinforced carbon foam material and related product
AssigneeWest Virginia University
InventorsAlfred H. Stiller, Aaron Yocum, Januz Plucinski
Life of this patent
Estimating the term…
Abstract
A method of making an anisotropic or isotropic carbon foam include introducing at least one reinforcing additive which may be carbon nanofibers, carbon nanotubes, chopped graphite fibers, crushed green coke, crushed calcined coke or combinations thereof during the process of manufacturing the carbon foam to enhance selected strength properties of the resultant foam. A resultant product is also disclosed.
Claims40
A method of making an anisotropic carbon foam material comprising:
- creating a coke precursor by hydrogenating and de-ashing bituminous coal,
- dissolving said hydrogenated bituminous coal having asphaltenes and oils in a solvent,
- separating said asphaltenes from said oils,
- coking said asphaltenes by heating to devolatilize and foam said asphaltenes,
- cooling said carbon foam, and
- during said method introducing a reinforcing additive.
3 more elements
A method of making an isotropic carbon foam material comprising
- creating a coke precursor by de-ashing bituminous coal,
- dissolving said de-ashed coal having asphaltenes and oils in a solvent,
- separating said asphaltenes from said oils,
- coking said asphaltenes by heating to devolatilize and foam said asphaltenes,
- cooling said carbon foam, and
- during said method introducing a reinforcing additive.
3 more elements
A coal derived carbon foam material comprising
- a body portion having a plurality of voids of generally uniform size therein, and
- reinforcing additives dispersed through said body portion.
Dependencies are inferred from the claim text.