Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Reexamination Certificate
2006-04-21
2011-12-06
Sample, David (Department: 1783)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
C428S219000, C428S220000, C525S474000
Reexamination Certificate
active
08071202
ABSTRACT:
The present invention relates to a process for production of water-absorbing polymer structures comprising the process steps of providing an untreated, water-absorbing polymer structure (Pu) with a retention of at least about 35 g/g; and bringing this water-absorbing untreated polymer structure (Pu) into contact with a permeability-increasing agent. The invention further relates to the water-absorbing polymer structures obtainable by this process, water-absorbing polymer structures, a composite, a process for production of a composite, a composite obtainable by this process, chemical products comprising water-absorbing polymer structures or a composite as well as the use of water-absorbing polymer structures or of the composite in chemical products.
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English Translation of International Preliminary Report on Patentability mailed on Apr. 24, 2008 in PCT/EP2006/003694.
Mirko Walden et al., U.S. Appl. No. 12/297,480, filed with U.S. Patent and Trademark Office on Oct. 17, 2008.
Furno Franck
Herbe Peter
Keup Michael
Nielinger Ursula
Schmidt Harald
Evonik Stockhausen GmbH
Ferguson Lawrence
McCann Philip P.
Sample David
Smith Moore Leatherwood LLP
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