Corrosion resistant composites useful in chemical reactors
US6068925A · kind A · utility
6Cited by
32References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1997 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | May 2, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2984
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A chemical process apparatus component comprising a high purity, corrosion resistant composite including a continuous carbon fiber reinforced carbon matrix having a level of total metal impurity below about 10 ppm, preferably below about 5 ppm. Most preferably, the composite has a level of metal impurity below the detection limit of inductively coupled plasma spectroscopy for the metals Ag, Al, Ba, Be, Ca, Cd, Co, Cr, Cu, K, Mg, Mn, Mo, Na, Ni, P, Pb, Sr and Zn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.