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(11)

EP 1 812 539 A1

(12)

(43) Date of publication: 01.08.2007 Bulletin 2007/31 (21) Application number: 05801559.5 (22) Date of filing: 07.11.2005

(51) International Patent Classification (IPC):  C10M 133/54(2006.01) C10M 129/93(2006.01) C10L 1/22(2006.01) C10M 141/06(2006.01) C10M 129/90(2006.01) C10L 1/18(2006.01) C10M 161/00(2006.01) C10M 141/02(2006.01) (86) International application number: PCT/GB2005/004284 (87) International publication number: WO 2006/054045 (26.05.2006 Gazette 2006/21)

(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: 19.11.2004 GB 0425509 (71) Applicant: CRODA INTERNATIONAL PLC Goole North Humberside DN14 9AA (GB)	(72) Inventors: OLDFIELD, Andrew, Simon Rose Cottage Path Hill Reading RG8 7RE (GB) IRVINE, Derek, John Cleveland TS15 9RF (GB) (74) Representative: Ralph, Julie Diane  Uniqema Limited Uniqema Intellectual Property Dept. Wilton Centre Redcar TS10 4RF Redcar TS10 4RF (GB)