Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Patent
1993-03-26
1994-08-16
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
521 64, 521 65, 521 69, 521 72, 521149, 521150, 604369, C08J 928
Patent
active
053387660
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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