Innovative Aluminum Alloy Foil
Speira GmbH, a prominent Germany-based company, has recently filed a patent application for an aluminum alloy foil characterized by improved barrier properties. The patent application, filed on June 16, 2023, under the number 202337041118 A, showcases an aluminum foil with a thickness not exceeding 12 μm, and potentially as thin as 9 μm or less than 8 μm. The foil is made of an AA1xxx or A8xxx aluminum alloy in an annealed state, indicating Speira GmbH’s commitment to innovation in the field of material sciences.
Enhanced Barrier Properties
The key highlight of Speira GmbH’s aluminum foil lies in its enhanced barrier properties. The foil boasts a remarkably low number of pores, with pore sizes ranging from 1 μm to 200 μm. The maximum number of these pores per square decimeter is restricted to 12, with some variations allowing for even fewer pores – as low as 8 or 6 per dm². This significant reduction in pore count contributes to the foil’s improved barrier characteristics, making it suitable for a wide range of applications where material integrity is crucial.
Production Method and Application
Speira GmbH’s patent also covers the method of producing this advanced aluminum alloy foil. The specifics of this manufacturing process remain under wraps, but it is expected to be a critical part of the patent, potentially offering innovative approaches to aluminum foil production. The application of this aluminum alloy foil is diverse, with potential uses in various industries requiring high-quality, reliable barrier materials.
Published Patent Details
The details of this patent were published in Issue No. 40/2023 of the Patent Office Journal on October 6, 2023. This publication marks a significant milestone for Speira GmbH, positioning it as a leader in the field of advanced aluminum product manufacturing. 
