Carbon or graphite article and method of making by impregnating

Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...

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Details

428532, 428533, 427113, 427114, 427223, B32B 900

Patent

active

043328563

ABSTRACT:
In a process for producing carbon or graphite articles, baked carbonaceous articles are impregnated with an aqueous solution of lignin sulfonate complex prior to carbonization or graphitization. The carcinogenic effects of conventional impregnants are eliminated, and impregnation temperatures are lowered significantly.

REFERENCES:
patent: 935180 (1909-09-01), Williamson
patent: 1566409 (1925-12-01), Lavene
patent: 3342627 (1967-09-01), Paxton et al.
"The Orzan Products", Crown Zellerbach Product Information Bulletin, 311-317.

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