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(11)

EP 4 110 889 A1

(12)

(43) Date of publication: 04.01.2023 Bulletin 2023/01 (21) Application number: 21706961.6 (22) Date of filing: 25.02.2021

(51) International Patent Classification (IPC):  C10M 173/02(2006.01) C23C 22/46(2006.01) C23G 1/00(2006.01) C10N 40/20(2006.01) C10N 80/00(2006.01) C10N 50/02(2006.01) C10M 177/00(2006.01) C23C 22/83(2006.01) C23G 1/08(2006.01) C10N 70/00(2006.01) C10N 30/12(2006.01) (52) Cooperative Patent Classification (CPC): C10N 2080/00; C10N 2040/243; C10M 2201/02; C10M 173/02; C10M 177/00; C10M 2201/081; C10M 2201/084; C10M 2207/123; C10N 2040/247; C10M 2217/028; C10M 2217/024; C10M 2217/023; C10M 2209/062; C10M 2209/04; C10M 2205/14; C10M 2205/16; C10M 2205/18; C10N 2070/02; C10N 2050/02; C10N 2030/12; C23C 22/46; C23G 1/00; C23G 1/086; C23C 22/83   C-Sets: C10M 2209/04, C10M 2217/028; (86) International application number: PCT/EP2021/054657 (87) International publication number: WO 2021/170707 (02.09.2021 Gazette 2021/35)

(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: 25.02.2020 EP 20159323 (71) Applicant: Chemetall GmbH 60487 Frankfurt (DE)	(72) Inventors: SHI, Yinfeng 60487 Frankfurt am Main (DE) ORBEN, Martin 60487 Frankfurt am Main (DE) (74) Representative: Steffan & Kiehne Patentanwälte PartG mbB  Burgplatz 21-22 40213 Düsseldorf 40213 Düsseldorf (DE)