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(11)

EP 2 739 598 A1

(12)

(43) Date of publication: 11.06.2014 Bulletin 2014/24 (21) Application number: 11746378.6 (22) Date of filing: 03.08.2011

(51) International Patent Classification (IPC):  C07C 29/149(2006.01) C07C 31/08(2006.01) C07C 29/80(2006.01) (86) International application number: PCT/US2011/046491 (87) International publication number: WO 2013/019232 (07.02.2013 Gazette 2013/06)

(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 (71) Applicant: Celanese International Corporation Dallas, TX 75234 (US)

(72) Inventors: LEE, David Seabrook, Texas 77586 (US) OROSCO, Adam Houston, Texas 77059 (US) SARAGER, Lincoln Houston, Texas 77062 (US) WARNER, R. Jay Houston, Texas 77062 (US) JEVTIC, Radmila Pasadena, Texas 77505 (US) JOHNSTON, Victor J. Houston, Texas 77059 (US) (74) Representative: Serravalle, Marco  Serravalle SAS Via Matteotti, 21/23 26854 Cornegliano Laudense (LO) 26854 Cornegliano Laudense (LO) (IT)