(19)

(11)

EP 2 185 746 A2

(12)

(88) Date of publication A3: 18.06.2009 (43) Date of publication: 19.05.2010 Bulletin 2010/20 (21) Application number: 08803784.1 (22) Date of filing: 05.09.2008

(51) International Patent Classification (IPC):  C23C 28/00(2006.01) B05D 7/24(2006.01) (86) International application number: PCT/EP2008/061815 (87) International publication number: WO 2009/030764 (12.03.2009 Gazette 2009/11)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 05.09.2007 EP 07115765 (71) Applicant: OCAS Onderzoekscentrum voor Aanwending van Staal N.V. 9060 Zelzate (BE)	(72) Inventors: SIAU, Sam B-9052 Zwijnaarde (BE) VAN DEN BERG, Otto B-9200 Grembergen (BE) (74) Representative: pronovem  Office Van Malderen Avenue Josse Goffin 158 1082 Bruxelles 1082 Bruxelles (BE)