Pretreated aluminum alloy tab stock
AssigneeNovelis Inc.
InventorsJaesuk Park, Dewei Zhu, Alp Manavbasi, Sarmistha Das, Joseph Maciejewski
Life of this patent
Estimating the term…
Abstract
Described herein are 5xxx series aluminum alloy substrates and methods of making 5xxx series aluminum alloy substrates having a pretreatment fdm on a surface of the substrate. A beverage tab may comprise a pretreated 5xxx series aluminum alloy substrate. A method of making a 5xxx series aluminum alloy substrate as described herein includes producing a pretreatment film on a surface of a 5xxx series aluminum alloy substrate to provide a pretreated 5 xxx series aluminum alloy substrate and controlling a coat weight of the pretreatment film to no greater than 10 mg/ft2.
Claims22
A method of making a 5xxx series aluminum alloy substrate, the method comprising:
- producing a pretreatment film on a surface of a 5xxx series aluminum alloy substrate to provide a pretreated 5xxx series aluminum alloy substrate;
- and
- controlling a coat weight of the pretreatment film to no greater than 10 mg/ft2.
Dependencies are inferred from the claim text.