Method for making fiber having biodegradable superabsorbent...

Details Method for making fiber having biodegradable superabsorbent... Method for making fiber having biodegradable superabsorbent...

2008-06-30

2010-11-16

Hug, Eric (Department: 1791)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S177000, C264S109000, C264S140000, C536S097000, C536S098000, C536S106000

Reexamination Certificate

active

07833384

ABSTRACT:
A method for making fibers having particles attached thereto, comprising blending a carboxyalkyl cellulose and a starch in water to provide an aqueous gel; treating the aqueous gel with a first crosslinking agent to provide a crosslinked gel; drying the crosslinked gel to provide a solid; comminuting the solid to provide a plurality of particles; 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 adding a second water-miscible solvent to the mixture to provide fibers having particles attached thereto.

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