Stock material or miscellaneous articles – Sheet including cover or casing – Including elements cooperating to form cells
Patent
1990-04-02
1992-06-23
Thomas, Alexander S.
Stock material or miscellaneous articles
Sheet including cover or casing
Including elements cooperating to form cells
428 76, 428220, 4283115, 4283179, 521919, B32B 310, B32B 502, B32B 312
Patent
active
051241889
ABSTRACT:
Absorbent polymeric macrostructures that are porous and comprise an interparticle crosslinked aggregate having a circumscribed dry volume greater than about 10.0 mm.sup.3. The interparticle crosslinked aggregrate comprises a multiplicity of precursor particles of substantially water-soluble, absorbent, hydrogel-forming, polymer material; and an interparticle crosslinking agent reacted with the polymer material of the precursor particles to form crosslink bonds between the precursor particles. Because of the particulate nature of the precursor particles, the macrostructure has pores between adjacent precursor particles. The pores are interconnected by intercommunicating channels such that the macrostructure is liquid permeable.
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Berg Charles J.
Lahrman Frank H.
Roe Donald C.
Braun Fredrick H.
Hersko Bart S.
Miller Steven W.
The Procter & Gamble & Company
Thomas Alexander S.
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