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(11)

EP 4 025 379 A1

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(43) Date of publication: 13.07.2022 Bulletin 2022/28 (21) Application number: 20761287.0 (22) Date of filing: 31.08.2020

(51) International Patent Classification (IPC):  B23K 35/26(2006.01) B23K 35/02(2006.01) C22C 13/00(2006.01) H05K 3/34(2006.01) (52) Cooperative Patent Classification (CPC): H05K 3/3463; B23K 35/262; C22C 13/00; B23K 35/025; H05K 3/3485 (86) International application number: PCT/EP2020/074193 (87) International publication number: WO 2021/043708 (11.03.2021 Gazette 2021/10)

(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: 06.09.2019 EP 19195895 (71) Applicant: Henkel AG & Co. KGaA 40589 Düsseldorf (DE)	(72) Inventors: BUCKLAND, Daniel Hertfordshire WD6 3PD (GB) WILDING, Ian Bedfordshire LT1 4HZ (GB) REN, Guang Hubei 432100 (CN) COLLINS, Maurice Limerick (IE)