(19)

(11)

EP 4 277 789 A1

(12)

(43) Date of publication: 22.11.2023 Bulletin 2023/47 (21) Application number: 22701689.6 (22) Date of filing: 18.01.2022

(51) International Patent Classification (IPC):  B32B 17/10(2006.01) (52) Cooperative Patent Classification (CPC): B32B 17/10036; B32B 17/10348; B32B 17/10807 (86) International application number: PCT/GB2022/050138 (87) International publication number: WO 2022/153068 (21.07.2022 Gazette 2022/29)

(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: 18.01.2021 GB 202100636 (71) Applicant: Pilkington Group Limited Nr. Ormskirk, Lancashire L40 5UF (GB)	(72) Inventors: HURST, Michael Ormskirk Lancashire L40 7RW (GB) TELEGA, Tomasz 27-600 Sandomierz (PL) (74) Representative: Stanley, Andrew Thomas et al Pilkington Group Limited Intellectual Property Pilkington European Technical Centre Hall Lane, Lathom Ormskirk, Lancashire L40 5UF Ormskirk, Lancashire L40 5UF (GB)