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(11)

EP 4 038 218 A1

(12)

(43) Date of publication: 10.08.2022 Bulletin 2022/32 (21) Application number: 20789234.0 (22) Date of filing: 02.10.2020

(51) International Patent Classification (IPC):  C23C 18/16(2006.01) C23C 18/30(2006.01) C23C 18/28(2006.01) C23C 18/20(2006.01) C23C 18/24(2006.01) (52) Cooperative Patent Classification (CPC): C23C 18/163; C23C 18/2086; C23C 18/30; C23C 18/285; C23C 18/24 (86) International application number: PCT/GB2020/052430 (87) International publication number: WO 2021/064417 (08.04.2021 Gazette 2021/14)

(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: 04.10.2019 GB 201914372 (71) Applicant: MacDermid, Incorporated Waterbury, CT 06702 (US)	(72) Inventors: PEARSON, Trevor Waterbury, Connecticut 06702 (US) HYSLOP, Alison Waterbury, Connecticut 06702 (US) SINGH, Amrik Waterbury, Connecticut 06702 (US) HERDMAN, Roderick Waterbury, Connecticut 06702 (US) (74) Representative: Boult Wade Tennant LLP  Salisbury Square House 8 Salisbury Square London EC4Y 8AP London EC4Y 8AP (GB)