Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1994-05-26
1995-09-19
Foelak, Morton
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
4283157, 4283159, 4283179, 604369, B32B 2700
Patent
active
054514525
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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Phan Dean V.
Trokhan Paul D.
Foelak Morton
Henderson Loretta J.
Hersko Bart S.
Miller Steven W.
The Procter & Gamble & Company
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