Patent ID: 6087448
Filing Date: 2000-07-11
Classification: A61L,C08F

Abstract:
A solid superabsorbent material comprising a mixture of(a) discrete particles of a lightly crosslinked poly(vinylguanidine) having the structure ##STR5## wherein q is a number from 10 to about 10,000, and R.sub.5 and R.sub.6, independently, are selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.6 cycloalkyl, benzyl, phenyl, alkyl-substituted phenyl, and naphthyl,and is lightly crosslinked with a crosslinking agent selected from the group consisting of divinylbenzene; divinyl ether; ##STR6## wherein x is ethylene, propylene, trimethylene, hexamethylene, 2-hydroxypropylene, --(CH.sub.2 CH.sub.2 O).sub.n CH.sub.2 CH.sub.2 --; ##STR7## n and m are each an integer 5 to 40, and k is 1 or 2; ##STR8## wherein 1 is 2 or 3; a monofunctional aldehyde; a multifunctional aldehyde; a multifunctional acrylate; a halohydrin; a dihalide; a disulfonate ester; a multifunctional epoxy; a melamine resin; a hydroxymethyl urea; and mixtures thereof, and(b) discrete particles of an acidic water-absorbing resin.