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(11)

EP 4 267 525 A1

(12)

(43) Date of publication: 01.11.2023 Bulletin 2023/44 (21) Application number: 21845045.0 (22) Date of filing: 23.12.2021

(51) International Patent Classification (IPC):  C03C 25/32(2018.01) C03C 13/06(2006.01) C08L 61/28(2006.01) C09D 161/28(2006.01) D04H 1/64(2012.01) C03C 25/34(2006.01) C08L 61/24(2006.01) C09D 161/24(2006.01) D04H 1/4218(2012.01) D04H 1/4209(2012.01) (52) Cooperative Patent Classification (CPC): C03C 13/06; C03C 25/34; C03C 25/32; D04H 1/641; C09D 161/24; C09D 161/28; C08L 61/24; C08L 61/28; D04H 1/4218; D04H 1/4209 (86) International application number: PCT/EP2021/087628 (87) International publication number: WO 2022/136698 (30.06.2022 Gazette 2022/26)

(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: 23.12.2020 EP 20020662 (71) Applicant: Prefere Resins Holding GmbH 15537 Erkner (DE)	(72) Inventors: PROCK, Christoph 3910 ZWETTL (AT) SCHWAB, Michael 58460 ISERLOHN (DE) (74) Representative: Deckers, Hellmuth Alexander  Kanzlei Dr. Deckers Breitbachstrasse 15 55218 Ingelheim am Rhein 55218 Ingelheim am Rhein (DE)