(19)

(11)

EP 2 049 630 A2

(12)

(88) Date of publication A3: 20.03.2008 (43) Date of publication: 22.04.2009 Bulletin 2009/17 (21) Application number: 07787797.5 (22) Date of filing: 23.07.2007

(51) International Patent Classification (IPC):  C10M 133/06(2006.01) C10N 30/00(2006.01) C10N 30/10(2006.01) (86) International application number: PCT/EP2007/057552 (87) International publication number: WO 2008/015116 (07.02.2008 Gazette 2008/06)

(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 Designated Extension States: AL BA HR MK RS (30) Priority: 31.07.2006 US 834383 P (71) Applicant: Ciba Holding Inc. 4057 Basel (CH)	(72) Inventors: CHASAN, David Eliezer Teaneck, NJ 07666 (US) WILSON, Patricia Roberta White Plains, NY 10606 (US) RIBEAUD, Marc 2800 Delémont (CH)