1,2,3,4,4a,9a-Hexahydro-9,10-anthracene-dione, its preparation and its application to the delignification of lignocellulosic materials
US4235666A · kind A · utility
1Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1979 |
| Grant date | Nov 25, 1980 |
| Priority date | — |
| Expiry date | Jun 27, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C3/222
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A new industrial product, namely 1,2,3,4,4a,9a-hexahydro-9,10-anthracene-dione, is disclosed together with a process for its preparation and its use in conventional alkali metal hydroxide cook or Kraft cook processes for the delignification of lignocellulose materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.