Carbon foam abrasives

Fuel and related compositions – Coal treating process or product thereof

Reexamination Certificate

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C156S078000, C423S076000, C423S448000, C423S460000, C428S408000, C428S489000

Reexamination Certificate

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06869455

ABSTRACT:
The incorporation or blending of from about 1 to about 10% by volume of a “carbide precursor” powder, preferably on the order of <100 microns in size, with a coal particulate starting material and the subsequent production of carbon foam in accordance with the method described herein, results in a carbon foam that exhibits significantly enhanced abrasive characteristics typical of those required in the polishing of, for example glass, in the manufacture of cathode ray tubes.

REFERENCES:
patent: 3309437 (1967-03-01), Harnett
patent: 1489690 (1976-05-01), None
Kirk-Othmer, Encycclopedia of Chemical Technology, 4th Edition, vol. 6, John Wiley & Sons, Inc. NY., application of Coal Petrology & Petrography, pp. 429-434 and 454-455, 1993.*
SU 973, 509 A English Abstract, (BELOI), Nov. 1982.*
SU 536,148 A, English Abstract, (DEMII). Jan. 1977.*
JP 53-094,313 A, English Abstract, (IBIG), Aug. 1978. □□□□CN 1290755A, Englsih Abstract, (YELLI), Apr. 2001.

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