Superabsorbent polymer foam

Details Superabsorbent polymer foam Superabsorbent polymer foam

1994-11-17

1996-04-09

Foelak, Morton

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428201, 4283142, 4283179, 521 63, 521 64, 521 69, 521 72, 521149, 521150, 604358, 604369, A61F 1315, B32B 300

Patent

active

055060358

ABSTRACT:
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.
Methods for making the foam and absorbent products, members and articles containing the foam are also disclosed.

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