Lyocell fiber made from alkaline pulp having low average degree of polymerization values
US6440523B1 · kind B1 · utility
40Cited by
111References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2001 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Oct 10, 2021 |
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 compositions having a high hemicellulose content of at least 5% by weight, a low kappa number of less than 2.0 and including cellulose that has a low average degree of polymerization (D.P.) value of about 200 to 1,100, and a narrow molecular weight distribution ( R) of less than 2.8.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.