(19)

(11)

EP 3 996 907 A1

(12)

(43) Date of publication: 18.05.2022 Bulletin 2022/20 (21) Application number: 20835988.5 (22) Date of filing: 03.07.2020

(51) International Patent Classification (IPC):  B32B 3/28(2006.01) B32B 21/14(2006.01) B32B 7/12(2006.01) E04C 2/10(2006.01) B32B 5/02(2006.01) B32B 27/30(2006.01) B32B 21/10(2006.01) B32B 7/022(2019.01) E04B 1/14(2006.01) E04C 2/32(2006.01) B32B 5/18(2006.01) B32B 27/40(2006.01) (52) Cooperative Patent Classification (CPC): E04C 2002/3455; E04C 2/243; E04C 2/386; E04C 2/388; E04C 2/384; E04C 2/46; B32B 2307/102; B32B 7/12; B32B 3/08; B32B 2262/106; B32B 2260/021; B32B 2255/26; B32B 2607/00; B32B 21/10; B32B 2262/0269; B32B 21/14; B32B 21/042; B32B 3/30; B32B 3/06; B32B 2260/046; B32B 7/03; B32B 2262/101; B32B 2255/12 (86) International application number: PCT/AU2020/050697 (87) International publication number: WO 2021/003523 (14.01.2021 Gazette 2021/02)

(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: 09.07.2019 AU 2019902438 (71) Applicant: 3E Panels Pty Ltd Westlake QLD 4074 (AU)	(72) Inventors: FERNANDO, Nangallage Dilum Westlake, Queensland 4074 (AU) TORERO CULLEN, Jose Luis Washington, District of Columbia 20011 (US) SLAVIK, Milos Baxter, Victoria 3911 (AU) (74) Representative: EP&C  P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)