(19)
(11) EP 1 529 014 A1

(12)

(43) Date of publication:
11.05.2005 Bulletin 2005/19

(21) Application number: 03792235.8

(22) Date of filing: 29.07.2003
(51) International Patent Classification (IPC)7: C01B 33/149
(86) International application number:
PCT/EP2003/008333
(87) International publication number:
WO 2004/018359 (04.03.2004 Gazette 2004/10)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 22.08.2002 DE 10238463

(71) Applicant: Degussa AG
40474 Düsseldorf (DE)

(72) Inventors:
  • LORTZ, Wolfgang
    63607 Wächtersbach (DE)
  • BATZ-SOHN, Christoph
    63454 Hanau (DE)
  • PERLET, Gabriele
    63538 Grosskrotzenburg (DE)
  • WILL, Werner
    63571 Gelnhausen (DE)
  • SCHNEIDER, Gerrit
    63456 Hanau (DE)
  • NEUGEBAUER, Peter
    63071 Offenbach (DE)

   


(54) STABILIZED, AQUEOUS SILICON DIOXIDE DISPERSION