Pulverulent, crosslinked polymers which absorb aqueous liquids and blood
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United States of America Patent
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Dec 14, 2004
Grant Date -
Sep 9, 2004
app pub date -
Mar 4, 2003
filing date -
Sep 4, 2000
priority date (Note) -
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Abstract
The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which have been after-crosslinked on their surface at temperatures of at least 150.degree. C. with a combination of polyol as after-crosslinking compound and a cation in the form of an aqueous solution.
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