(19)

(11)

EP 3 814 322 A1

(12)

(43) Date of publication: 05.05.2021 Bulletin 2021/18 (21) Application number: 19748992.5 (22) Date of filing: 20.06.2019

(51) International Patent Classification (IPC):  C07C 319/24(2006.01) C07C 319/04(2006.01) C07C 321/14(2006.01) C07C 321/04(2006.01) (86) International application number: PCT/US2019/038249 (87) International publication number: WO 2020/005711 (02.01.2020 Gazette 2020/01)

(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 Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 28.06.2018 US 201816021736 (71) Applicant: Chevron Phillips Chemical Company LP The Woodlands, Texas 77380 (US)	(72) Inventors: KREIDER, Jason L. Copan, Oklahoma 74022 (US) CHILDRESS, R. Shawn Bartlesville, Oklahoma 74006 (US) MATSON, Michael S. Bartlesville, Oklahoma 74006 (US) BYERS, Jim D. Bartlesville, Oklahoma 74006 (US) (74) Representative: Haseltine Lake Kempner LLP  Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)