Patent ID: 8258211
Filing Date: 2012-09-04
Classification: A61L,D04H,D06M,D21H

Abstract:
1. A process for making a material for acquisition of liquids, said material comprising individualized, crosslinked cellulosic fibers including an effective amount of at least one acidic crosslinking agent reacted with said fibers in intra-fiber crosslink ester bond form, said acidic crosslinking agent being a polymer comprising a plurality of acidic functional groups; and at least one basic polymer, said method comprising: a. providing a cellulosic based fiber, b. impregnating the fiber with the at least one acidic crosslinking agent and with the at least one basic polymer, and c. heating the resulting mixture to temperatures of at least the boiling point of water; d. neutralizing non-reacted, free acid groups in the crosslinked fiber mixture.