Compositions – Humidostatic – water removive – bindive – or emissive
Reexamination Certificate
2011-05-31
2011-05-31
Douyon, Lorna M (Department: 1761)
Compositions
Humidostatic, water removive, bindive, or emissive
C522S153000, C427S212000, C427S331000, C427S388400, C428S357000, C422S131000, C526S072000, C502S402000, C523S111000
Reexamination Certificate
active
07951304
ABSTRACT:
A process for producing water-absorbing polymer particles by polymerizing droplets of a monomer solution in a gas phase surrounding the droplets and postcrosslinking the polymer particles, wherein the postcrosslinked polymer particles are at least partly coated.
REFERENCES:
patent: 5269980 (1993-12-01), Levendis et al.
patent: 5731365 (1998-03-01), Engelhardt et al.
patent: 5840321 (1998-11-01), Engelhardt et al.
patent: 6414214 (2002-07-01), Engelhardt et al.
patent: 2006/0217508 (2006-09-01), Schmid et al.
patent: 2007/0100115 (2007-05-01), Schmid et al.
patent: 2007/0244280 (2007-10-01), Losch et al.
patent: 2008/0045624 (2008-02-01), Losch et al.
patent: 2008/0045625 (2008-02-01), Losch et al.
patent: 2008/0188586 (2008-08-01), Bruhns et al.
patent: 2008/0188821 (2008-08-01), Losch et al.
patent: 2008/0194778 (2008-08-01), Losch et al.
patent: 103 14 466 (2004-10-01), None
patent: 103 40 253 (2005-03-01), None
patent: 10 2004 024 437 (2005-12-01), None
patent: 10 2004 042 946 (2006-03-01), None
patent: 10 2004 042 948 (2006-03-01), None
patent: 10 2004 042 955 (2006-03-01), None
patent: 10 2005 002 412 (2006-07-01), None
patent: 10 2005 019 398 (2006-10-01), None
patent: 0 348 180 (1989-12-01), None
patent: 703 265 (1996-03-01), None
patent: 755 964 (1997-01-01), None
patent: WO-96/40427 (1996-12-01), None
patent: WO-01/25290 (2001-04-01), None
patent: WO-2006/079631 (2006-08-01), None
Buchholz et al.,Modern Superabsorbent Polymer Technology, Wiley-VCH, 71-103 (1998).
Deutsche Anmeldung mit dem Aktenzeichen 10 2006 001 596.7.
International Search Report and Written Opinion in PCT/EP2007/063758 dated Apr. 2, 2008.
Funk Rüdiger
Heide Wilfried
Krüger Marco
Stueven Uwe
Weismantel Matthias
BASF SE
Diggs Tanisha
Douyon Lorna M
Marshall & Gerstein & Borun LLP
LandOfFree
Method for producing mechanically stable water-absorbent... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for producing mechanically stable water-absorbent..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing mechanically stable water-absorbent... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2664582