(19)

(11)

EP 2 702 026 A1

(12)

(43) Date of publication: 05.03.2014 Bulletin 2014/10 (21) Application number: 12720331.3 (22) Date of filing: 26.04.2012

(51) International Patent Classification (IPC):  C07C 29/149(2006.01) C07C 31/08(2006.01) C07C 67/08(2006.01) C07C 29/84(2006.01) C07C 69/14(2006.01) (86) International application number: PCT/US2012/035196 (87) International publication number: WO 2012/149148 (01.11.2012 Gazette 2012/44)

(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: 26.04.2011 US 201113094588 16.06.2011 US 201113162034 02.12.2011 US 201161566442 P (71) Applicant: Celanese International Corporation Dallas, TX 75234 (US)	(72) Inventors: WARNER, R., Jay Houston TX 77059 (US) JOHNSTON, Victor, J. Houston TX 77059 (US) LEE, David Seabrook TX 77586 (US) OROSCO, Adam Houston TX 77059 (US) (74) Representative: Serravalle, Marco  Serravalle SAS Via Matteotti, 21/23 26854 Cornegliano Laudense (LO) 26854 Cornegliano Laudense (LO) (IT)