초록 ▼

The present invention relates to absorbent articles that include absorbent compositions which exhibit swelling, deswelling, and reswelling behavior. More specifically, absorbent compositions of this invention swell and absorb fluids after exposure to aqueous fluids, deswell and release fluids from t

The present invention relates to absorbent articles that include absorbent compositions which exhibit swelling, deswelling, and reswelling behavior. More specifically, absorbent compositions of this invention swell and absorb fluids after exposure to aqueous fluids, deswell and release fluids from the swollen absorbent compositions, and can also reswell and absorb fluids. The swelling-deswelling-reswelling behavior allows enhanced liquid distribution in absorbent composites and absorbent articles.

대표청구항 ▼

What is claimed is: 1. An absorbent article comprising:an absorbent core;wherein the absorbent core includes an absorbent composition comprising:a. a SAP having anionic functional groups;b. a deswell triggering agent comprising a first water-soluble chemical comprising cations X having an ionized va

What is claimed is: 1. An absorbent article comprising:an absorbent core;wherein the absorbent core includes an absorbent composition comprising:a. a SAP having anionic functional groups;b. a deswell triggering agent comprising a first water-soluble chemical comprising cations X having an ionized valence of two or more; andc. a reswell triggering agent comprising a second water-soluble chemical comprising anions Y;wherein the cations X of the first water-soluble chemical are capable of complexing with the anionic functional groups of the SAP; and the anions Y of the second water-soluble chemical are capable of complexing with the cations X to form a salt having a solubility product constant Ksp <10−5.