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1. (WO2017040514) ABSORBENT BINDER COMPOSITION

Pub. No.:    WO/2017/040514    International Application No.:    PCT/US2016/049472
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Wed Aug 31 01:59:59 CEST 2016
IPC: A61L 15/60
A61L 15/26
A61L 15/18
A61L 15/46
A61L 15/44
Applicants: KIMBERLY-CLARK WORLDWIDE, INC.
Inventors: MACDONALD, John, Gavin
SOERENS, Dave, Allen
TYRRELL, David, John
Title: ABSORBENT BINDER COMPOSITION
Abstract:
The present disclosure is directed towards an absorbent binder composition that includes a hydrophilic polymer which has the capability of post-application, moisture-induced cross-linking. The absorbent binder composition can include 1) a superabsorbent polymer material which can include at least 15 mass percent monoethylenically unsaturated polymer, such as carboxylic acid, sulphonic acid, or phosphoric acid, or salts thereof, and an acrylate or methacrylate ester that contains an alkoxysilane functionality and 2) a polyvalent metal cation having a valence of at least two. Upon loss of water by evaporation, the alkoxysilane functionality forms a silanol functional group which condenses to form a crosslinked polymer. Upon exposure of the absorbent binder composition to a biological material, such as urine, blood, or feces, the biological material can interact with the polyvalent metal cation and can serve as a catalyst to accelerate the polymer cross-linking and gelation of the polymer.