(19)

(11)

EP 1 926 777 A1

(12)

(43) Date of publication: 04.06.2008 Bulletin 2008/23 (21) Application number: 06793477.8 (22) Date of filing: 13.09.2006

(51) International Patent Classification (IPC):  C08L 51/06(2006.01) C08K 5/20(2006.01) (86) International application number: PCT/EP2006/066315 (87) International publication number: WO 2007/039421 (12.04.2007 Gazette 2007/15)

(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: 22.09.2005 US 719358 P 22.09.2005 US 719357 P (71) Applicant: Ciba Holding Inc. 4057 Basel (CH)	(72) Inventors: SHARMA, Ashutosh, H. Wappingers Falls, NY 12590 (US) SOLERA, Peter, Shelsey Suffern, NY 10901 (US) KASPERS, Sarah, Root Scarsdale, NY 10583 (US)