Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Reexamination Certificate
2011-03-29
2011-03-29
Cheung, William K (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
C127S049000, C525S329700
Reexamination Certificate
active
07915363
ABSTRACT:
The present invention relates to novel hydrophilic swellable addition polymers comprising improved odor control, a process for their preparation and their use for absorbing aqueous fluids and a process for screening superabsorbents.
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Opposition against BASF Aktiengesellschaft European Patent No. 1 425 320 filed by Nippon Shokubai Co., Ltd dated Jun. 11, 2007.
Opposition against BASF Aktiengesellschaft European Patent No. 1 425 320 filed by Stockhausen GmbH dated Jun. 20, 2007.
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Beck Martin
Funk Rüdiger
Herfert Norbert
Stüven Uwe
Wanior Mariola
BASF - Aktiengesellschaft
Cheung William K
Marshall & Gerstein & Borun LLP
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