Method of makig a superabsorbent polymer foam

Details Method of makig a superabsorbent polymer foam Method of makig a superabsorbent polymer foam

1993-03-26

1994-07-12

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 72, 521149, 521150, C08J 920, C08J 928

Patent

active

053289358

ABSTRACT:
A method of making an improved superabsorbent polymer foam having a morphology to provide improved absorptive properties is disclosed. The foam preferably comprises a superabsorbent polymer formed from a substantially water-soluble, unsaturated monomer having neutralized carboxyl groups and a substantially water-soluble internal crosslinking agent. The monomer and crosslinking agent are expanded in the presence of a substantially water-insoluble blowing agent and a suitable solvent and reacted to form a superabsorbent polymer foam having substantially continuous, intercommunicating channels substantially throughout the foam and a relatively high surface area to mass ratio.
Absorbent products, members and articles containing the foam are also disclosed.

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