(19)

(11)

EP 3 494 645 A1

(12)

(43) Date of publication: 12.06.2019 Bulletin 2019/24 (21) Application number: 17752440.2 (22) Date of filing: 04.08.2017

(51) International Patent Classification (IPC):  H04B 5/00(2006.01) B32B 17/10(2006.01) H02J 7/02(2016.01) (86) International application number: PCT/GB2017/052311 (87) International publication number: WO 2018/025051 (08.02.2018 Gazette 2018/06)

(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: MA MD (30) Priority: 05.08.2016 GB 201613533 (71) Applicant: Pilkington Group Limited Nr. Ormskirk, Lancashire L40 5UF (GB)	(72) Inventor: DAY, Stephen Roland Wigan Greater Manchester WN6 0TB (GB) (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)