Cross-linked sodium polyacrylate absorbent composition,...

Details Cross-linked sodium polyacrylate absorbent composition,... Cross-linked sodium polyacrylate absorbent composition,...

B - Operations, Transporting

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B01J 20/04 (2006.01) A61L 15/60 (2006.01) B01J 20/10 (2006.01) B01J 20/26 (2006.01) C08F 265/02 (2006.01)

Patent

CA 1165946

CROSS-LINKED SODIUM POLYACRYLATE ABSORBENT COMPOSITION, METHOD OF MANUFACTURE THEREFOR AND ABSORBENT ARTICLES CONTAINING SAME ABSTRACT An absorbent composition is provided that comprises a copolymer of acrylic acid cross-linked with a first cross-linking component comprising a monomer having at least two vinyl groups and a second cross-linking component comprising an ionic divalent cation. Optionally a fourth com- ponent may also be included comprising a monomeric species selected from certain methacrylic derivatives and acrylamide. This composition is preferably mixed with cellulose fibers to enhance wicking in absorbent articles, and is especially useful when incorporated as a powder between two plies of paper to make a two-ply paper towel.

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