Hoechst Celanese Corporation

William G-j Chiang

Guy T Woodrum

Douglas R Chambers

Joy L McCrickard

A surface crosslinked superabsorbent polymer composition, a process for its preparation and articles made therefrom wherein said superabsorbent composition is prepared by surface crosslinking the polymerization product of a carboxyl or carboxylate group containing monomer with a crosslinker solution comprising water, C.sub.3 -C.sub.6 diol and a crosslinking compound having at least two functional reactive groups with the carboxyl or carboxylate groups of said polymerization product.

Superabsorbent polymers and products therefrom

This invention is directed to a recurring polymeric moiety of the following formula: ##STR1## wherein R is independently selected from hydrogen and C.sub.1 to C.sub.4 alkyl; Y is independently selected from O and NH; and X is independently selected from Cl, F, Br, I, NO.sub.3, HSO.sub.4 and H.sub.2 PO.sub.4. Polymers of the above structure may be crosslinked by treating the polymer with a base and heating it.

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Virginia Beach, VA, United States of America

William G-j Chiang