Gaskets and sealing material
US5306556A · kind A · utility
6Cited by
9References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1991 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Nov 7, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/696
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a novel chemical and oxidation resistant gasketing or sealing material, such as packing yarn. More particularly, there is provided packing yarn comprising carbonaceous fibers which can be used at temperatures over 400.degree. C. that derived from oxidized polyacrylonitrile fibers and have good dry lubricity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.