Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Web – sheet or filament bases; compositions of bandages; or...
Reexamination Certificate
2011-01-18
2011-01-18
Berman, Susan W (Department: 1765)
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Web, sheet or filament bases; compositions of bandages; or...
C424S445000, C424S489000, C522S040000, C522S041000, C522S042000, C522S043000, C522S046000, C522S117000, C522S121000
Reexamination Certificate
active
07871640
ABSTRACT:
Superabsorbent polymer particles with improved surface cross-linking and their use in absorbent articles. The superabsorbent polymer particles comprise polymer chain segments, wherein at least a part of the polymer chain segments are covalently cross-linked to each other and wherein at least a part of the cross-links include the reaction product of cross-linking molecules having at least two C═C double bonds and further include the reaction product of radical former molecules. These cross-links are present at surfaces of the superabsorbent polymer particles.
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Flohr Andreas
Lindner Torsten
Berman Susan W
Powell John G.
The Procter & Gamble & Company
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