Patent ID: 8071222

Claim:
A process for producing polymeric particles capable of absorbing blood and/or body fluids by an addition polymerization of a mixture of a) at least one ethylenically unsaturated acid-functional monomer wherein each is optionally at least partially neutralized, b) at least one crosslinker, c) optionally one or more ethylenically and/or allylically unsaturated monomers copolymerizable with a), d) optionally one or more water-soluble polymers onto which said monomers, a), b), and optionally c) may be at least partially grafted, the base polymer obtained being dried, then ground, then classified and e) optionally aftertreated with one or more postcrosslinkers and dried, which comprises the dried polymeric particles being aftertreated with at least one surfactant and with 0.5% to 10%, by weight, of at least one solvent of a general formula (I) wherein R 1 is C 1 -C 6 -alkyl with or without halogen substitution, R 2 and R 3 are independently hydrogen, methyl or ethyl, and n is an integer from 0 to 20.