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EP 4 816 167 A1

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(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24896912.3 (22) Date of filing: 22.11.2024

(51) International Patent Classification (IPC):  B32B 17/10(2006.01) C03C 17/00(2006.01) (52) Cooperative Patent Classification (CPC): C03C 17/36; C03C 17/3668; C03C 17/32; C03C 2217/94; C03C 2217/948; C03C 2218/328; B32B 2605/08; B32B 17/10036; B32B 7/12; B32B 2307/412; B32B 3/08; B32B 17/10165; B32B 17/10183; B32B 17/10211; B32B 17/1022; B32B 2255/20; B32B 2255/205; B32B 2255/26; B32B 2307/202; B32B 17/10174 (86) International application number: PCT/IN2024/052271 (87) International publication number: WO 2025/115029 (05.06.2025 Gazette 2025/23)

(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: 30.11.2023 IN 202341081741 (71) Applicant: Saint-Gobain Sekurit France 60150 Thourotte (FR)	(72) Inventors: C JAYARAM, Robin Chennai 600 113, Tamil Nadu, India Chennai 600 113 (IN) N, Sreenath Chennai 600 113, Tamil Nadu, India Chennai 600 113 (IN) THANGAMANI, Arunvel Chennai-600 113, Tamil Nadu (IN) (74) Representative: SAINT-GOBAIN SEKURIT FRANCE  Rue du Maréchal Joffre 60150 Thourotte 60150 Thourotte (FR)