SUPERABSORBENT FOAM HAVING GRAPHICAL SYMBOLS ON ITS SURFACE

摘要

A superabsorbent foam contains at least 1% by weight, based on the total weight of the dry foam, of an inorganic powdery solid and carries graphical symbols on at least one of its surfaces. Said foam can be obtained by a method which is characterized by polymerizing a foamed monomer mixture that contains a corresponding amount of the inorganic solid in a mold that carries graphical symbols on at least one of its inner surfaces.