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EP 3 523 461 A1

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(43) Date of publication: 14.08.2019 Bulletin 2019/33 (21) Application number: 17857700.3 (22) Date of filing: 04.10.2017

(51) International Patent Classification (IPC):  C23F 11/08(2006.01) C23F 11/18(2006.01) C23C 22/52(2006.01) C23F 11/10(2006.01) C09D 5/08(2006.01) (86) International application number: PCT/AU2017/051082 (87) International publication number: WO 2018/064721 (12.04.2018 Gazette 2018/15)

(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: 04.10.2016 AU 2016904006 (71) Applicant: Commonwealth Scientific and Industrial Research Organisation Acton, Australian Capital Territory 2601 (AU)	(72) Inventors: WHITE, Paul A Acton Australian Capital Territory 2601 (AU) COLE, Ivan S Acton Australian Capital Territory 2601 (AU) (74) Representative: Carpmaels & Ransford LLP  One Southampton Row London WC1B 5HA London WC1B 5HA (GB)