Method of forming a porous carbonaceous preform from water-based

Details Method of forming a porous carbonaceous preform from water-based Method of forming a porous carbonaceous preform from water-based

1993-03-29

1993-09-28

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

264 291, 264 42, 264 451, 423445, 423448, 427226, 427227, 501 80, 521134, 524531, 524612, C08J 900

Patent

active

052487059

ABSTRACT:
A method for forming a porous carbonaceous preform comprises, forming a mixture comprised of up to about 50 volume percent of furfuryl alcohol or tetrahydrofurfuryl alcohol, about 1 to 10 volume percent of a nonionic polyethylene oxide polymer ranging in molecular weight from about 100,000 to 5,000,000, about 30 to 80 volume percent of a carbonaceous material, and the balance water. The mixture is cast to form a body, and heated to decompose the polymer and form the porous preform. A molding composition for carbonaceous material comprises, up to about 50 volume percent of furfuryl alcohol or tetrahydrofurfuryl alcohol, about 1 to 10 volume percent of a nonionic polyethylene oxide polymer ranging in molecular weight from about 100,000 to 5,000,000, about 30 to 80 volume percent of the carbonaceous material, and the balance water.

REFERENCES:
patent: 3219731 (1965-11-01), Etzel et al.
patent: 3907950 (1975-09-01), Bickerdike et al.
patent: 3969124 (1976-07-01), Stewart
patent: 4320079 (1982-03-01), Minear et al.
"General Properties of POLYOX Water-Soluble Resins", Union Carbide Brochure, p. 4.
"Furan Derivatives", Encyclopedia of Chemical Technology, 3rd edition, vol. 11, pp. 499-524.

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