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EP 3 525 966 A1

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(43) Date of publication: 21.08.2019 Bulletin 2019/34 (21) Application number: 17804009.3 (22) Date of filing: 16.10.2017

(51) International Patent Classification (IPC):  B22F 9/08(2006.01) C21C 1/02(2006.01) C21C 7/00(2006.01) C21C 7/064(2006.01) C22B 9/05(2006.01) B22F 1/00(2006.01) C21C 1/10(2006.01) C21C 7/06(2006.01) C21C 7/072(2006.01) (86) International application number: PCT/US2017/056736 (87) International publication number: WO 2018/075380 (26.04.2018 Gazette 2018/17)

(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: 17.10.2016 US 201615295733 (71) Applicants: Ecole Polytechnique Montréal, QC H3T 1JR (CA) Tenneco Inc. Lake Forest, IL 60045 (US)	(72) Inventors: L'ESPERANCE, Gilles Candiac, Quebec J5R 5R6 (CA) BOISVERT, Mathieu Waupun, WI 53963 (US) CHRISTOPHERSON, Denis B., Jr. Waupun, WI 53963 (US) BEAULIEU, Philippe Coventry United Kingdom CV5 9JS (GB) (74) Representative: HGF Limited  4th Floor Merchant Exchange 17-19 Whitworth Street West Manchester M1 5WG Manchester M1 5WG (GB)