(19)

(11)

EP 2 493 610 A2

(12)

(88) Date of publication A3: 14.07.2011 (43) Date of publication: 05.09.2012 Bulletin 2012/36 (21) Application number: 10773795.9 (22) Date of filing: 26.10.2010

(51) International Patent Classification (IPC):  B01J 23/00(2006.01) B01J 21/06(2006.01) B01J 23/62(2006.01) B01J 37/02(2006.01) C07C 29/149(2006.01) C07B 31/00(2006.01) B01J 21/04(2006.01) B01J 21/12(2006.01) B01J 37/00(2006.01) B01J 23/656(2006.01) C07C 53/08(2006.01) (86) International application number: PCT/US2010/054136 (87) International publication number: WO 2011/056597 (12.05.2011 Gazette 2011/19)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR (30) Priority: 26.10.2009 US 588727 02.02.2010 US 698947 02.02.2010 US 699024 02.02.2010 US 300815 P 07.05.2010 US 332696 P 07.05.2010 US 332699 P 06.08.2010 US 852227 06.08.2010 US 852269 (71) Applicant: Celanese International Corporation Dallas, TX 75235 (US)

(72) Inventors: JEVTIC, Radmila Pasadena Texas 77505 (US) JOHNSTON, Victor J. Houston Texas 77059 (US) WARNER, R. Jay Houston Texas 77062 (US) WEINER, Heiko Pasadena Texas 77059 (US) (74) Representative: Serravalle, Marco et al Serravalle SAS Via Matteotti, 21/23 26854 Cornegliano Laudense (LO) 26854 Cornegliano Laudense (LO) (IT)