Individualized crosslinked fibers and process for making said fibers
US4888093A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1989 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Feb 23, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M13/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Individualized, crosslinked fiber, and process for making such fibers. The individualized, crosslinked fibers have between about 0.5 mole % and about 3.5 mole % crosslinking agent, calculated on a cellulose anhydroglucose molar basis, reacted with fibers in the form of intrafiber crosslink bonds, wherein the crosslinking agent is selected from the group consisting of C.sub.2 -C.sub.8 dialdehydes, C.sub.2 -C.sub.8 dialdehyde acid analogues having at least one aldehyde functionality, and oligomers of such C.sub.2 -C.sub.8 dialdehydes, and dialdehyde acid analogues. Preferably, the crosslinking agent is glutaraldehyde, and between about 0.75 mole % and about 2.5 mole % crosslinking agent react to form the intrafiber crosslink bonds. The individualized crosslinked fibers are useful in a variety of absorbent structure applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.