Pulping process
US6153052A · kind A · utility
3Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1999 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Sep 16, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21C3/224
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved pulping process by which pulp yield is increased requires using polysulfide in the cooking liquor and lignocellulosic particles having a maximum thickness of 2 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.