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(11)

EP 4 217 325 A1

(12)

(43) Date of publication: 02.08.2023 Bulletin 2023/31 (21) Application number: 21791502.4 (22) Date of filing: 08.09.2021

(51) International Patent Classification (IPC):  C03C 17/38(2006.01) C09D 5/44(2006.01) B05D 1/00(2006.01) (52) Cooperative Patent Classification (CPC): C03C 17/38; B05D 2505/50; B05D 2203/35; B05D 1/60; B05D 3/0493; B05D 3/0486 (86) International application number: PCT/US2021/049345 (87) International publication number: WO 2022/066407 (31.03.2022 Gazette 2022/13)

(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: 24.09.2020 US 202063082546 P (71) Applicant: Corning Incorporated Corning, New York 14831 (US)

(72) Inventors: BROWN, Philip Simon Big Flats, New York 14814 (US) FULLER, Brandy Wright Corning, New York 14830 (US) GU, Yunfeng Painted Post, New York 14870 (US) HUANG, Ming-Huang Ithaca, New York 14850 (US) KANUNGO, Mandakini Ithaca, New York 14850 (US) KENT, Brian Alan Horseheads, New York 14845 (US) MAZUMDER, Prantik Ithaca, New York 14850 (US) (74) Representative: Sturm, Christoph  Patentanwälte Sturm Weilnau Franke Partnerschaft mbB Unter den Eichen 5 (Haus C-Süd) 65195 Wiesbaden 65195 Wiesbaden (DE)