Coated pitch prill

Details Coated pitch prill Coated pitch prill

1976-09-09

1978-08-15

Lesmes, George F.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

264 7, 427222, 428375, 428403, 428407, 428489, B32B 1102

Patent

active

041073827

ABSTRACT:
Process for forming coated pitch prills by mixing pitch prills with finely divided carbonaceous material and agitating the prills and carbonaceous material until a layer of carbonaceous material adherently bonded to the pitch prill is formed. Preferably the pitch prill is a substantially spherical particle having an average diameter between about 1 and about 5 millimeters. The finely divided carbonaceous material is preferably carbon black.

REFERENCES:
patent: 1312258 (1919-08-01), King
patent: 1683587 (1928-09-01), Doerschuk
patent: 1854926 (1932-04-01), Broske
patent: 2062370 (1936-12-01), Miller
patent: 2457962 (1949-01-01), Whaley
patent: 2484792 (1949-10-01), Mollring
patent: 2550838 (1951-05-01), Macq
patent: 2714077 (1955-07-01), Wallace
patent: 3026568 (1962-03-01), Moar
patent: 3457335 (1969-07-01), Elliot
Hackh's Chemical Dictionary, 4th Ed., N. Y., 1969, p. 133.

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