Substantially water-insoluble, water-swellable, non-regenerated, carboxyalkyl cellulose fibers, wherein the fibers have a surface having the appearance of the surface of a cellulose fiber, and wherein the fibers include a plurality of non-permanent intra-fiber metal crosslinks and a plurality of permanent...http://www.google.es/patents/US7608167?utm_source=gb-gplus-sharePatente US7608167 - Crosslinked carboxyalkyl cellulose fibers having permanent and non-permanent crosslinks
Crosslinked carboxyalkyl cellulose fibers having permanent and non-permanent ...
