Patent ID: 6323252
Filing Date: 2001-11-27
Classification: A61L,C08J

Abstract:
A composition comprising aqueous fluid absorbent polymer particles which have been heat-treated at temperatures greater than 170.degree. C. for more than 10 minutes, wherein the composition has been remoisturized, after the heat-treatment, with an aqueous additive solution containing a mono- or multivalent metal salt, in the absence of an organic solvent or water-insoluble, non-swellable powder, and wherein the composition comprises 1 to 10 percent by weight, based on the total weight of the composition, water and wherein the composition is characterized by the ability to absorb at least 20 grams of a 0.9 weight percent aqueous saline solution under a pressure of 0.3 psi (21,000 dynes/cm.sup.2), that is, a 60 minute 0.3 psi (21,000 dynes/cm.sup.2) AUL greater than 20 grams/gram.