(19)

(11)

EP 4 429 885 A1

(12)

(43) Date of publication: 18.09.2024 Bulletin 2024/38 (21) Application number: 22889590.0 (22) Date of filing: 04.11.2022

(51) International Patent Classification (IPC):  B32B 17/06(2006.01) G02B 5/00(2006.01) B32B 7/02(2019.01) (52) Cooperative Patent Classification (CPC): G02B 1/116; G02B 5/286 (86) International application number: PCT/IN2022/050970 (87) International publication number: WO 2023/079577 (11.05.2023 Gazette 2023/19)

(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: KH MA MD TN (30) Priority: 08.11.2021 IN 202141050977 (71) Applicant: Saint-Gobain Glass France 92400 Courbevoie (FR)	(72) Inventors: MUKHOPADHYAY, Uditendu Chennai 600041 (IN) MISRA, Soumyadeep Chennai 600041 (IN) DHANDHARIA, Priyesh Chennai 600096 (IN) (74) Representative: Saint-Gobain Recherche  B.P. 135 39, quai Lucien Lefranc 93303 Aubervilliers Cedex 93303 Aubervilliers Cedex (FR)