Catalytic process for producing raw material pitch for carbon materials from naphthalene
US5066779A · kind A · utility
0Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1990 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Jan 30, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F9/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention discloses a process for producing a raw material pitch for carbon materials containing a slight amount of ash, the comprising steps of adding aluminum chloride to naphthalene or its derivative as a catalyst; polymerizing said naphthalene or its derivative at a temperature of 100.degree. to 330.degree. C., adding water to the polymer, under stirring if necessary; maintaining the mixture in an emulsified state for a predetermined time under stirring, breaking an emulsion, removing a water layer from the polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.