Polymeric particles capable of absorbing blood and/or body fluids

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
• R1 is C1-C6-alkyl with or without halogen substitution,
• R2 and R3 are independently hydrogen, methyl or ethyl, and
• n is an integer from 0 to 20.