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EP 3 099 825 A1

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(43) Date of publication: 07.12.2016 Bulletin 2016/49 (21) Application number: 15703108.9 (22) Date of filing: 28.01.2015

(51) International Patent Classification (IPC):  C21C 7/00(2006.01) C22B 7/04(2006.01) C21C 7/076(2006.01) (86) International application number: PCT/IB2015/050658 (87) International publication number: WO 2015/114545 (06.08.2015 Gazette 2015/31)

(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 (30) Priority: 31.01.2014 US 201461934320 P (71) Applicant: Saudi Basic Industries Corporation 11422 Riyadh (SA)	(72) Inventor: BEHERA, Narottam 31961 Jubail Industrial City (SA) (74) Representative: Andrae | Westendorp Patentanwälte Partnerschaft  Uhlandstraße 2 80336 München 80336 München (DE)