(19)
(11) EP 4 551 854 A2

(12)

(88) Date of publication A3:
13.06.2024

(43) Date of publication:
14.05.2025 Bulletin 2025/20

(21) Application number: 23750538.3

(22) Date of filing: 28.07.2023
(51) International Patent Classification (IPC): 
F16L 11/08(2006.01)
(52) Cooperative Patent Classification (CPC):
F16L 11/083; F16L 59/143; F16L 2011/047
(86) International application number:
PCT/EP2023/025356
(87) International publication number:
WO 2024/022616 (01.02.2024 Gazette 2024/05)
(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: 29.07.2022 GB 202211147

(71) Applicant: Baker Hughes Energy Technology UK Limited
Bristol BS48 1BS (GB)

(72) Inventors:
  • PIRES, Fabio De Souza
    Newcastle upon Tyne Tyne and Wear NE6 3PF (GB)
  • MACEDO, Andre Leao
    Newcastle upon Tyne Tyne and Wear NE6 3PF (GB)
  • CLEMENTS, Richard Alasdair
    Newcastle upon Tyne Tyne and Wear NE6 3PF (GB)
  • ROBERTS, Andrew Peter
    Newcastle upon Tyne Tyne and Wear NE6 3PF (GB)
  • KENDALL, Garry Ian
    Newcastle upon Tyne Tyne and Wear NE6 3PF (GB)

(74) Representative: HGF 
HGF Limited 1 City Walk
Leeds LS11 9DX
Leeds LS11 9DX (GB)

   


(54) PERMEATION-BARRIER AND METHOD OF MANUFACTURE