Mineral oils: processes and products – Products and compositions – Asphalts – tars – pitches and resins
Patent
1982-07-19
1985-05-21
Gantz, Delbert E.
Mineral oils: processes and products
Products and compositions
Asphalts, tars, pitches and resins
208 39, 208 44, 4234471, 4234472, 4234474, 4234476, C10C 300, D01F 914
Patent
active
045184828
ABSTRACT:
A pitch suitable for carbon fiber manufacture features a pitch having a weight content of between 80 and 100 percent toluene insolubles. The pitch is derived from a deasphaltenated fraction of a feedstock. The pitch is characterized as being relatively free of impurities and ash. The pitch can be spun directly into carbon fibers.
REFERENCES:
patent: 2066386 (1937-01-01), Bergeim
patent: 3928169 (1975-12-01), Conroy
patent: 4184942 (1980-01-01), Angier et al.
patent: 4208267 (1980-06-01), Diefendorf et al.
patent: 4219409 (1980-08-01), Dickakian
patent: 4271006 (1981-06-01), Dikakian
patent: 4363415 (1982-12-01), Dickakian
E. I. Du Pont de Nemours and Company
Gantz Delbert E.
Myers Helane
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