(19)

(11)

EP 4 189 149 A1

(12)

(43) Date of publication: 07.06.2023 Bulletin 2023/23 (21) Application number: 21870089.6 (22) Date of filing: 15.09.2021

(51) International Patent Classification (IPC):  D03D 13/00(2006.01) D03D 1/00(2006.01) D03D 15/00(2021.01) (52) Cooperative Patent Classification (CPC): D03D 13/004; D03D 15/283; D03D 15/43; D03D 15/44; D03D 15/573; D10B 2321/042; D10B 2321/021; D10B 2331/021; D10B 2331/02; D10B 2331/301; D10B 2321/121; D10B 2331/10; D10B 2321/041; D10B 2505/204; D03D 1/00 (86) International application number: PCT/US2021/050364 (87) International publication number: WO 2022/060766 (24.03.2022 Gazette 2022/12)

(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: 16.09.2020 US 202017022422 (71) Applicant: Nicolon Corporation d/b/a Tencate Geosynthetics Americas Pendergrass, GA 30567 (US)	(72) Inventors: JONES, David Michael Pendergrass, Georgia 30567 (US) KING, Kevin Nelson Pendergrass, Georgia 30567 (US) BENFIELD, Larry Ray Pendergrass, Georgia 30567 (US) (74) Representative: The IP Asset Partnership Limited  Prama House 267 Banbury Road Oxford OX2 7HT Oxford OX2 7HT (GB)