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(11)

EP 2 435 546 A1

(12)

(43) Date of publication: 04.04.2012 Bulletin 2012/14 (21) Application number: 09785930.0 (22) Date of filing: 29.05.2009

(51) International Patent Classification (IPC):  C11C 1/08(2006.01) C11C 3/00(2006.01) (86) International application number: PCT/IB2009/005775 (87) International publication number: WO 2010/136838 (02.12.2010 Gazette 2010/48)

(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 MK MT NL NO PL PT RO SE SI SK TR (71) Applicant: The Gtbe Company NV 7500 AH Enschede (NL)	(72) Inventors: VERSTEEG, Geert, F. NL-7500 AH The Netherlands (NL) IJBEN, Piet NL-7500 AH The Netherlands (NL) KLEPACOV, K. NL-7500 AH The Netherlands (NL) VAN LOO, Sjaak NL-AH The Netherlands (NL) (74) Representative: Lambert, Ian Robert et al Wynne-Jones, Lainé & James LLP Essex Place 22 Rodney Road GB- Cheltenham, Glos. GL50 1JJ GB- Cheltenham, Glos. GL50 1JJ (GB)