Process for making individualized, crosslinked fibers and fibers thereof
US4889596A · kind A · utility
37Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1989 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Jan 30, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M13/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Individualized, crosslinked fibers made by (a) defibrating moistened, cellulosic fibers and at least partially drying the fibers under substantially unrestrained conditions, i.e., in the substantial absence of interfiber bonds (b) contacting the fibers with a crosslinking agent, (c) reacting the crosslinking agent with the fibers in the substantial absence of interfiber bonds, to form intrafiber crosslink bonds, (d) subjecting the fibers, while in a moistened condition, to a second defibration step, and then at least partially drying the fibers under substantially unrestrained conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.