Superabsorbent polymer particles

摘要

Superabsorbent polymer particles having a particle size of about 38 to about 300 mum and a median particle size of about 180 mum or less are disclosed. The superabsorbent polymer particles comprise at least one unneutralized acidic water-absorbing resin and at least one unneutralized basic water-absorbing resin. One embodiment is multicomponent superabsorbent particles wherein each particle contains at least one microdomain of the acidic resin in contact with, or in close proximity to, at least one microdomain of the basic resin. Mixed bed of multicomponent superabsorbent gel particles with particles of a second unneutralized water-ab-sorbing resin, and mixed bed of particles of an unneutral-ized acidic water-absorbing resin and an unneutralized basic water-absorbing resin, also are disclosed. Improved diaper cores containing the small particle size superabsorbent polymer particles also are disclosed.