The invention relates to a superabsorbent polymer wherein an increased
rate of water absorption is obtained by the addition of an encapsulated
blowing agent. The invention relates to a superabsorbent polymer
including an encapsulating blowing agent and having a vortex time of 40
seconds or less. In particular, the superabsorbent polymer includes from
about 55 to about 99.9 wt. % of polymerizable unsaturated acid group
containing monomers; from about 0.001 to about 5.0 wt. % of internal
crosslinking agent; wherein the wherein the composition has a degree of
neutralization of more than about 20%; and from about 0.05 to about 10.0
wt. % of an encapsulated blowing agent.