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(11)

EP 3 465 054 A2

(12)

(88) Date of publication A3: 24.05.2018 (43) Date of publication: 10.04.2019 Bulletin 2019/15 (21) Application number: 17726704.4 (22) Date of filing: 12.05.2017

(51) International Patent Classification (IPC):  F28F 1/14(2006.01) C22C 19/05(2006.01) C22C 30/00(2006.01) C10G 9/20(2006.01) C22C 19/07(2006.01) (86) International application number: PCT/IB2017/052815 (87) International publication number: WO 2017/203388 (30.11.2017 Gazette 2017/48)

(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: MA MD (30) Priority: 25.05.2016 CA 2930827 (71) Applicant: Nova Chemicals (International) S.A. 1700 Fribourg (CH)	(72) Inventors: PETELA, Grazyna Calgary, Alberta T3G 1K4 (CA) BENUM, Leslie Red Deer, Alberta T4N 2B9 (CA) MAH, Evan Calgary, Alberta T2E 2S7 (CA) KLUTHE, Jeffrey Lacombe, Alberta T4L 0A5 (CA) CROWE, Jeffrey Calgary, Alberta T2K 1B8 (CA) (74) Representative: Mewburn Ellis LLP  City Tower 40 Basinghall Street London EC2V 5DE London EC2V 5DE (GB)