Patent ID: 7179862
Filing Date: 2007-02-20
Classification: A61L,B01J,C08F,C08J,C08L

Abstract:
1. A sanitary article comprising an absorbent polymer comprising a particulate polymer product comprising the reaction product of a) from 55 to about 99.9 wt. % of polymerized, ethylenically unsaturated monomers which contain acid groups and are neutralized to at least 25 mole %, b) from 0 to 40 wt. % of polymerized, ethylenically unsaturated monomers copolyermizable with a), c) from 0 to 5.0 wt. % of one or more polymerized crosslinkers, d) from 0 to 30 wt. % of a water soluble polymer, wherein the sum of the weight amounts a) through d) is 100 wt. % and wherein the particulate polymer product has been treated with e) from 0.001 to 5 wt.-%, relative to the polymer product, of an organic surface secondary crosslinking agent, with the exception of polyols, in the form of an aqueous solution, and f) from 0.001 to 1 wt. %, relative to the polymer product, of a multivalent cation in the form of an aqueous solution, and has been subjected to surface secondary crosslinking to form the absorbent polymer, wherein the absorbent polymer has a permeability as measured by the saline flow conductivity test, SFC, of about 30×10