Super absorbent hydrogel foams
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United States of America Patent
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May 12, 1998
Grant Date -
N/A
app pub date -
Apr 4, 1995
filing date -
Apr 4, 1995
priority date (Note) -
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Abstract
A water swellable foam matrix formed as a macroporous solid comprising a foam stabilizing agent and a polymer or copolymer of a free radical polymerizable hydrophilic olefin monomer crosslinked with about 0.1 to about 10% by weight of a multiolefin-functional crosslinking agent is described. The foam matrix is characterized by rapid swelling and high water swelling ratios.
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