Process for preparing an absorbent foam

Details Process for preparing an absorbent foam Process for preparing an absorbent foam

1997-11-25

1999-09-07

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 841, 521141, 521149, 521182, 536 20, C08J 928

Patent

active

059488298

ABSTRACT:
Disclosed is a process for preparing an absorbent foam. The process generally comprises forming a solution of a polymer in a solvent, freezing the solution at a relatively slow cooling rate to a temperature below the freezing point of the solvent, removing the solvent from the frozen solution, and recovering the polymer to form a water-swellable, water-insoluble polymeric foam. The process has been found to enable one to prepare an absorbent foam that exhibits desirable softness and flexibility properties yet is highly absorbent. Such an absorbent foam may be used in a disposable absorbent product intended for the absorption of fluids such as body fluids.

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