(19)

(11)

EP 1 973 858 A2

(12)

(88) Date of publication A3: 18.01.2007 (43) Date of publication: 01.10.2008 Bulletin 2008/40 (21) Application number: 06763236.4 (22) Date of filing: 23.05.2006

(51) International Patent Classification (IPC):  C04B 11/028(2006.01) B01J 8/26(2006.01) (86) International application number: PCT/EP2006/062543 (87) International publication number: WO 2006/125782 (30.11.2006 Gazette 2006/48)

(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 (30) Priority: 27.05.2005 EP 05104577 (71) Applicant: PROMAT INTERNATIONAL N.V. 2830 Tisselt (BE)	(72) Inventors: OPSOMMER, Ann B-1880 Koningslo (BE) HEIJSTER, Ivo B-2950 Kapellen (BE) (74) Representative: Vandeberg, Marie-Paule L.G. et al Office Kirkpatrick 32, avenue Wolfers 1310 La Hulpe 1310 La Hulpe (BE)