Patent ID: 7833384
Filing Date: 2010-11-16
Classification: A61L,D04H,D21H

Abstract:
1. A method for making fibers having particles attached thereto, comprising: (a) blending a carboxyalkyl cellulose and a starch in water to provide an aqueous gel; (b) treating the aqueous gel with a first crosslinking agent to provide a crosslinked gel; (c) drying the crosslinked gel to provide a solid; (d) comminuting the solid to provide a plurality of particles; (e) combining at least a portion of the plurality of particles with a aqueous dispersion comprising cellulose fibers and a first water-miscible solvent and, optionally, a second crosslinking agent, to provide a mixture comprising swollen particles and cellulose fibers; and (f) adding a second water-miscible solvent to the mixture to provide fibers having particles attached thereto.