Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles – Autogenously or by activation of dry coated particles
Patent
1991-05-24
1992-04-07
Foelak, Morton
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
Autogenously or by activation of dry coated particles
521 841, 521 88, 521 94, 521 95, 521142, 521149, 521919, B27J 500
Patent
active
051025973
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 aggregate comprises a multiplicity of precursor particles of substantially water-insoluble, 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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Technical Bulletin, Starchem GmbH, Drystar, Publication--date unknown.
Kolon Petrochemical Super Absorbent Material.
Norsolar Absorbent Gelling Material.
Nippon Shokubai Water Agglomerated Absorbent Gelling Material.
Berg Charles J.
Lahrman Frank H.
Roe Donald C.
Foelak Morton
Miller Steven W.
The Procter & Gamble & Company
Witte Richard C.
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