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(11)

EP 3 700 667 A1

(12)

(43) Date of publication: 02.09.2020 Bulletin 2020/36 (21) Application number: 18803555.4 (22) Date of filing: 25.10.2018

(51) International Patent Classification (IPC):  B01J 20/26(2006.01) B01J 20/30(2006.01) B01J 20/28(2006.01) B01J 20/32(2006.01) (86) International application number: PCT/EP2018/079358 (87) International publication number: WO 2019/081688 (02.05.2019 Gazette 2019/18)

(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: KH MA MD TN (30) Priority: 25.10.2017 GB 201717555 (71) Applicants: Nonwovens Innovation and Research Institute Leeds, Yorkshire LS7 1SR (GB) Russell, Stephen Harrogate, Yorkshire HG2 8QE (GB) Fowler, Christopher York, Yorkshire YO24 1ET (GB) Spurr, Henry Leeds, Yorkshire LS7 1SR (GB)

(72) Inventors: RUSSELL, Stephen Harrogate Yorkshire HG2 8QE (GB) FOWLER, Christopher York Yorkshire YO24 1ET (GB) SPURR, Henry Leeds Yorkshire LS7 1SR (GB) (74) Representative: White, Nicholas John  Tangible IP Ltd. Blake House 18 Blake Street York, North Yorkshire YO1 8QG York, North Yorkshire YO1 8QG (GB)