(19)

(11)

EP 4 314 121 A1

(12)

(43) Date of publication: 07.02.2024 Bulletin 2024/06 (21) Application number: 22718635.0 (22) Date of filing: 25.03.2022

(51) International Patent Classification (IPC):  C08J 3/20(2006.01) C08J 3/22(2006.01) (52) Cooperative Patent Classification (CPC): C08J 3/226; C08J 3/203; C08J 2323/06; C08J 2333/06; C08J 2433/06; C08J 2429/04 (86) International application number: PCT/EP2022/057966 (87) International publication number: WO 2022/207500 (06.10.2022 Gazette 2022/40)

(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: 29.03.2021 EP 21165455 (71) Applicant: Smart Coloring GmbH 52074 Aachen (DE)	(72) Inventor: ROBERTZ, Bernd 52074 Aachen (DE) (74) Representative: Michalski Hüttermann & Partner Patentanwälte mbB  Kaistraße 16A 40221 Düsseldorf 40221 Düsseldorf (DE)