Papermaking process using enzyme-treated sludge, and products
US7125471B2 · kind B2 · utility
6Cited by
22References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2001 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Aug 19, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/01
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Enzyme-treated papermaking sludges are provided, as are methods of making the enzyme-treated sludge. Papermaking processes that incorporate the enzyme-treated papermaking sludges into papermaking pulp are also provided as are paper and paperboard products made from the resultant pulp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.