(19)

(11)

EP 2 115 095 A1

(12)

(43) Date of publication: 11.11.2009 Bulletin 2009/46 (21) Application number: 07851909.7 (22) Date of filing: 13.12.2007

(51) International Patent Classification (IPC):  C09K 17/46(2006.01) E02D 3/12(2006.01) (86) International application number: PCT/NL2007/050649 (87) International publication number: WO 2008/072964 (19.06.2008 Gazette 2008/25)

(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 MT NL PL PT RO SE SI SK TR (30) Priority: 13.12.2006 NL 1033049 (71) Applicant: Stichting Deltares 2629 HD Delft (NL)	(72) Inventors: VAN DER ZON, Wilhelmus Hendrikus 2521 ZL Den Haag (NL) OLIE, Jacob Jacobus 2713 BB Zoetermeer (NL) STAAL, Marc Jaap 3000 Helsingør (DK) (74) Representative: Hatzmann, Martin et al Vereenigde Johan de Wittlaan 7 2517 JR Den Haag 2517 JR Den Haag (NL)