High strength high modulus carbon fibers
US4913889A · kind A · utility
13Cited by
59References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 12, 1987 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Nov 12, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/322
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
High strength, high modulus carbon fibers derived from high mesophase content pitch, having a plurality of sheets formed of planes of hexagonal carbon networks oriented, in the direction of the fiber axis and having a cross-sectional arrangement which does not carbonize to a graphitic structure are characterized by electron and X-ray diffraction pattern wherein the (10) band is not resolved into (100) and (101) lines, by an interlayer spacing greater than 3.38 angstrom and by negative magnetic resistivity when composed to graphitized fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.