(19)

(11)

EP 2 148 911 A2

(12)

(88) Date of publication A3: 22.01.2009 (43) Date of publication: 03.02.2010 Bulletin 2010/05 (21) Application number: 08742926.2 (22) Date of filing: 14.04.2008

(51) International Patent Classification (IPC):  C10G 9/00(2006.01) C10G 7/00(2006.01) (86) International application number: PCT/US2008/004875 (87) International publication number: WO 2008/143744 (27.11.2008 Gazette 2008/48)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 16.05.2007 US 803905 (71) Applicant: Equistar Chemicals, LP Houston, TX 77010 (US)	(72) Inventor: POWERS, Donald, H. Houston, Texas 77044 (US) (74) Representative: De Hoop, Eric  Octrooibureau Vriesendorp & Gaade B.V. Dr Kuyperstraat 6 2514 BB Den Haag 2514 BB Den Haag (NL)