High coking value binder system

Details High coking value binder system High coking value binder system

1987-04-14

1989-07-04

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

106284, 252510, C08L 9500

Patent

active

048447404

ABSTRACT:
A binder system for use in the production of graphite electrodes comprises pitch and a minor proportion of a polynitro-substituted aromatic compound containing an electron releasing substituent. A pitch/2,4-dinitroaniline blend results in graphite electrodes having a 14 percent improvement in coking value and a 52 percent improvement in flexural strength.

REFERENCES:
patent: 2434564 (1948-01-01), Hester et al.
patent: 2500208 (1950-03-01), Shea et al.
patent: 4715897 (1987-12-01), Tailon et al.
"Studies on the Processes of Carbonization and Graphitization of Coal-Tar-Pitches Containing the Oxidizing Agents I-XIX" by S. Yamada, Tokai Technical journal, Nr. 81 (1959).

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