(19)

(11)

EP 1 831 128 A1

(12)

(43) Date of publication: 12.09.2007 Bulletin 2007/37 (21) Application number: 05822971.7 (22) Date of filing: 28.12.2005

(51) International Patent Classification (IPC):  C04B 28/02(2006.01) C04B 24/38(2006.01) (86) International application number: PCT/NL2005/000896 (87) International publication number: WO 2006/071116 (06.07.2006 Gazette 2006/27)

(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: 29.12.2004 EP 04078567 29.12.2004 US 640181 P (71) Applicant: Coöperatie Avebe U.A. 9641 JA Veendam (NL)	(72) Inventors: VEEN, Uko NL-9649 HB Muntendam (NL) KREMER, Karin NL-9918 PN Garrelsweer (NL) TERPSTRA, Jacob NL-9403 SM Assen (NL) (74) Representative: van Loon, C.J.J. et al VEREENIGDE Johan de Wittlaan 7 2517 JR Den Haag 2517 JR Den Haag (NL)