Process for producing carbon fibers from organic fibrous material
US3935301A · kind A · utility
4Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1973 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | May 29, 1993 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/19
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Organic fibrous material is changed to heat-stabilized material by heating in an atmosphere, and then the heat-stabilized material is carbonized in a carbonizing furnace at a temperature of from about 800.degree.C to 1600.degree.C. When temperature at any given point in the furnace is plotted on a vertical axis and the particular location along the length of the carbonizing furnace is plotted on a horizontal axis, the slope of the resulting temperature profile above 800.degree.C either remains constant or decreases until the maximum temperature in the furnace is reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.