Process for bleaching a pulp in a sequence including an enzyme stage
US5645686A · kind A · utility
17Cited by
2References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1994 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Oct 13, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C9/166
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Process for bleaching a chemical paper pulp by means of a sequence of treatment stages involving at least one stage with an enzyme and at least one stage with a peroxyacid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.