Lyocell fiber from sawdust pulp
US6528163B2 · kind B2 · utility
42Cited by
15References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2002 |
| Grant date | Mar 4, 2003 |
| Priority date | — |
| Expiry date | Apr 23, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2965
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides lyocell fibers made from pulp, in particular a pulp having a high hemicellulose content of at least 5%, includes cellulose that has a low average degree of polymerization of from about 200 to about 1100, a kappa number of less than 2.0, and wherein greater than 4% of pulp fibers have a length-weighted fiber length of less than 2.0 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.