(19)

(11)

EP 1 817 117 A2

(12)

(88) Date of publication A3: 05.04.2007 (43) Date of publication: 15.08.2007 Bulletin 2007/33 (21) Application number: 05852561.9 (22) Date of filing: 30.11.2005

(51) International Patent Classification (IPC):  B05D 1/36(2006.01) B05D 3/02(2006.01) B05D 3/12(2006.01) C01F 7/02(2006.01) (86) International application number: PCT/US2005/043370 (87) International publication number: WO 2006/060510 (08.06.2006 Gazette 2006/23)

(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 LV MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK YU (30) Priority: 01.12.2004 US 1883 (71) Applicant: Sasol North America Inc. Houston, TX 77079 (US)	(72) Inventors: BARCLAY, David, A. Lack Charles, LA 70605 (US) CLOPTON, Lyndol, G. Lake Charles, LA 70605 (US) (74) Representative: Schupfner, Georg  Müller Schupfner Patentanwälte Parkstrasse 1 21244 Buchholz 21244 Buchholz (DE)