EP 4263884 A1 20231025 - ALUMINUM FOIL HAVING IMPROVED BARRIER PROPERTIES
Title (en)
ALUMINUM FOIL HAVING IMPROVED BARRIER PROPERTIES
Title (de)
ALUMINIUMFOLIE MIT VERBESSERTER BARRIEREEIGENSCHAFT
Title (fr)
FEUILLE D'ALUMINIUM AYANT DES PROPRIÉTÉS BARRIÈRES AMÉLIORÉES
Publication
Application
Priority
- EP 20215692 A 20201218
- EP 2021086404 W 20211217
Abstract (en)
[origin: WO2022129475A1] The invention relates to an aluminum alloy foil having a maximum thickness of 12 µm, 9 µm or less than 8 µm, wherein the aluminum alloy foil is an AA1xxx or A8xxx aluminum alloy in the annealed state. The invention further relates to a method for producing an aluminum alloy foil and to the use thereof. The invention aims to propose an aluminum alloy foil having improved barrier properties, a method for producing same, and a use, according to the invention, of the aluminum alloy foil. This aim is achieved in that the aluminum alloy foil has a maximum number of pores having a pore size of 1 µm to 200 µm with a maximum of 12 per dm², a maximum of 8 per dm² or a maximum of 6 per dm². The invention also relates to a method for producing this aluminum alloy foil.
IPC 8 full level
C21D 8/02 (2006.01); C22C 21/00 (2006.01); C22F 1/04 (2006.01)
CPC (source: EP US)
B22D 11/003 (2013.01 - US); C21D 8/0236 (2013.01 - EP); C21D 8/0268 (2013.01 - EP); C21D 8/0273 (2013.01 - EP); C22C 21/00 (2013.01 - EP US); C22F 1/04 (2013.01 - EP US)
Designated contracting state (EPC)
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 state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4015658 A1 20220622; CN 116635548 A 20230822; EP 4263884 A1 20231025; MX 2023007070 A 20230706; US 2023323514 A1 20231012; WO 2022129475 A1 20220623
DOCDB simple family (application)
EP 20215692 A 20201218; CN 202180085726 A 20211217; EP 2021086404 W 20211217; EP 21839200 A 20211217; MX 2023007070 A 20211217; US 202318333992 A 20230613