(19)

(11)

EP 4 680 580 A1

(12)

(43) Date of publication: 21.01.2026 Bulletin 2026/04 (21) Application number: 24710432.6 (22) Date of filing: 13.03.2024

(51) International Patent Classification (IPC):  C03C 3/087(2006.01) C03B 33/00(2006.01) C03C 23/00(2006.01) B23K 26/00(2014.01) C03C 21/00(2006.01) (52) Cooperative Patent Classification (CPC): C03C 23/0025; C03C 21/002; C03C 3/087; C03B 33/0222; C03B 33/04; B23K 26/388; B23K 26/53; B23K 26/60; B23K 2103/54 (86) International application number: PCT/EP2024/056720 (87) International publication number: WO 2024/189107 (19.09.2024 Gazette 2024/38)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 15.03.2023 EP 23162102 (71) Applicant: AGC Glass Europe 1348 Louvain-La-Neuve (BE)	(72) Inventors: DRUGMAN, Sylvain 6041 Gosselies (BE) ITO, Jun 6041 Gosselies (BE) LAMBRICHT, Thomas 6041 Gosselies (BE) LÊ QUANG, Tri 6041 Gosselies (BE) (74) Representative: AGC Glass Europe  Technovation Centre Intellectual Property Department Rue Louis Blériot 12 6041 Gosselies 6041 Gosselies (BE)