Polymerization process

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

Reexamination Certificate

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Details

C526S062000, C526S064000, C526S072000, C526S089000, C526S328000

Reexamination Certificate

active

07947794

ABSTRACT:
The invention relates to a process for continuously preparing water-absorbing polymer particles by mixing a monomer solution with a redox initiator consisting of at least one oxidizing agent and at least one reducing agent and polymerizing it, wherein the monomer solution is mixed with at least one oxidizing agent upstream of the polymerization reactor and the at least one reducing agent is metered into the polymerization reactor, and also to an apparatus for performing the process.

REFERENCES:
patent: 3316199 (1967-04-01), Murphy
patent: 4331787 (1982-05-01), Fairchok et al.
patent: 6667372 (2003-12-01), Miyake et al.
patent: 6710141 (2004-03-01), Heide et al.
patent: 6727345 (2004-04-01), Kajikawa et al.
patent: 6911499 (2005-06-01), Brehm et al.
patent: 2003/0020199 (2003-01-01), Kajikawa et al.
patent: 2004/0018365 (2004-01-01), Krautkramer et al.
patent: 2004/0204554 (2004-10-01), Ko et al.
patent: 199 55 861 (2001-05-01), None
patent: 1 097 946 (2001-05-01), None
patent: WO-01/16197 (2001-03-01), None
patent: WO-01/38402 (2001-05-01), None
patent: WO-03/004237 (2003-01-01), None
patent: WO-03/022896 (2003-03-01), None
Chemical Abstracts + Indexes, American Chemical Society. Columbus, US, Nov. 15, 1993, XP000407497 ISSN: 0009-2258 abstract.
International Search Report in PCT/EP2006/065848 dated Dec. 12, 2006.
Ullmann et al.,Ullmann's Encyclopedia of Industrial Chemistry, 6th ed.,vol. 35, pp. 1-21, New York: Wiley, 2005.

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