Pitch based impregnant for carbon and graphite and method
US5501729A · kind A · utility
16Cited by
6References
5Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 19, 1995 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Jul 19, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/521
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A pitch based impregnant for a carbon or graphite body and a method of impregnation. The method involves forming a liquid solution of a substantially solids free pitch having a Q.I. of less than 1% dissolved in furfural and containing an acid catalyst with the solution having a viscosity of less than 150 cps at room temperature and heating the impregnated body to between 150.degree.-200.degree. C. until the impregnant is cured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.