Methods for the preparation of mixed polymer superabsorbent fibers containing cellulose
US7717995B2 · kind B2 · utility
1Cited by
34References
20Claims
0Family size
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Key dates
| Filing date | Oct 2, 2006 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Jan 1, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L5/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for making mixed polymer composite fibers containing cellulose fibers in which cellulose fibers are dispersed in an aqueous solution comprising a carboxyalkyl cellulose and a galactomannan polymer or a glucomannan polymer in water to provide an aqueous fiber dispersion; the aqueous dispersion treated with a first crosslinking agent to provide a gel; the gel mixed with a water-miscible solvent to provide composite fibers; and the composite fibers treated with a second crosslinking agent to provide crosslinked fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.