Methods for producing a pitch foam

Details Methods for producing a pitch foam Methods for producing a pitch foam

C - Chemistry, Metallurgy

04

B

C04B 38/00 (2006.01) C01B 31/02 (2006.01) C04B 35/52 (2006.01) C08J 9/16 (2006.01) C08L 95/00 (2006.01) C10C 3/04 (2006.01)

Patent

CA 2595445

Methods to produce a pitch foam from a hydrocarbon carbonaceous precursor material. A gaseous blowing material is dissolved in the carbonaceous precursor material, and the resultant solution is pressurized in a vessel. As the solution is exhausted from the vessel, the gaseous blowing agent and the hydrocarbons of the carbonaceous precursor material evaporate from the pressurized solution to form a foam-like solution. The pitch foam is formed from the foam-like solution by directing the foam-like solution onto a surface, whereupon, the foam-like solution solidifies into the pitch foam.

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