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EP 3 580 246 A1

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(43) Date of publication: 18.12.2019 Bulletin 2019/51 (21) Application number: 18707429.9 (22) Date of filing: 12.02.2018

(51) International Patent Classification (IPC):  C08F 210/16(2006.01) C08L 23/08(2006.01) C08F 4/659(2006.01) B65D 41/00(2006.01) (86) International application number: PCT/IB2018/050855 (87) International publication number: WO 2018/146649 (16.08.2018 Gazette 2018/33)

(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 TN (30) Priority: 13.02.2017 CA 2957706 (71) Applicant: Nova Chemicals (International) S.A. 1700 Fribourg (CH)

(72) Inventors: WANG, Xiaochuan Calgary Alberta T3G 5P7 (CA) LI, Tieqi Calgary Alberta T3G 0A2 (CA) SIBTAIN, Fazle Calgary Alberta T3K 4G6 (CA) DOBBIN, Christopher Calgary Alberta T3G 4J7 (CA) TAYLOR, Kenneth Sarnia Ontario N0N 1C0 (CA) KHAKDAMAN, Hamidreza Houston Texas 77025 (US) MOLLOY, Brian Airdrie Alberta T4A 0J8 (CA) (74) Representative: Mewburn Ellis LLP  City Tower 40 Basinghall Street London EC2V 5DE London EC2V 5DE (GB)