(19)

(11)

EP 1 689 930 A1

(12)

(43) Date of publication: 16.08.2006 Bulletin 2006/33 (21) Application number: 04812624.7 (22) Date of filing: 01.12.2004

(51) International Patent Classification (IPC):  D21C 5/02(2006.01) (86) International application number: PCT/US2004/040154 (87) International publication number: WO 2005/054571 (16.06.2005 Gazette 2005/24)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 01.12.2003 US 526359 P (71) Applicant: Southern Ionics Incorporated West Point, MS 39773 (US)	(72) Inventors: ROBINSON, Peter, M. High Point, NC 27262 (US) PRESLEY, John, Richard Kingwood, TX 77345 (US) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 80538 München 80538 München (DE)