The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2026
Filed:
Jun. 13, 2023
Galyna Laptyeva, Alfter, DE;
Michael Eberhard, Jüchen, DE;
Jan Simmer, Düsseldorf, DE;
Michael Wimmer, Cologne, DE;
Günter Schubert, Rheinbach, DE;
Dirk Calmer, Erkelenz, DE;
Stefan Holz, Grevenbroich, DE;
Galyna Laptyeva, Alfter, DE;
Michael Eberhard, Jüchen, DE;
Jan Simmer, Düsseldorf, DE;
Michael Wimmer, Cologne, DE;
Günter Schubert, Rheinbach, DE;
Dirk Calmer, Erkelenz, DE;
Stefan Holz, Grevenbroich, DE;
Speira GmbH, Grevenbroich, DE;
Abstract
An aluminium alloy foil with a thickness of maximum 12 μm, maximum 9 μm or less than 8 μm. The aluminium alloy foil is an AA1xxx or A8xxx aluminium alloy in the annealed state. In addition, a method for manufacturing an aluminium alloy foil and its use. The object of proposing an aluminium alloy foil with improved barrier properties, a method for its manufacture and a use of the aluminium alloy foil is achieved in that the aluminium alloy foil has a maximum number of pores with a pore size of 1 μm to 200 μm of maximum 12 per dm, maximum 8 per dmor maximum 6 per dm. In addition, a method is specified for how this aluminium alloy foil can be manufactured.