Hydrophilic/oleophilic microcellular foam and method for making

Details Hydrophilic/oleophilic microcellular foam and method for making Hydrophilic/oleophilic microcellular foam and method for making

1999-02-12

1999-12-07

Foelak, Morton

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 62, 521 63, 521 65, C08J 928

Patent

active

059984937

ABSTRACT:
A superabsorbent foam material is made by a water-in-oil high internal phase emulsion polymerization comprising the steps of (a) dissolving an organic solvent-soluble surfactant in a water-insoluble monomer to form an organic phase; (b) blending the-organic phase with an aqueous phase using high shear mixing to form an emulsion, said aqueous phase comprising a water-soluble polymer, a cross-linking agent, and water; (c) polymerizing the water-insoluble monomer in the organic phase; (d) cross-linking the water-soluble polymer in the aqueous phase; and (e) final curing and drying the resulting foam.

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