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:
Nov. 28, 2023
Filed:
Dec. 20, 2019
Applicant:
Novelis Inc., Atlanta, GA (US);
Inventors:
Peter Spahn, Göttingen, DE;
Christian Tussing, Göttingen, DE;
Michael Heinemann, Vellmar, DE;
Dhiren Bhupatlal Ruparelia, Göttingen, DE;
Joerg Hoehne, Göttingen, DE;
Assignee:
Novelis Inc., Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/20 (2006.01); B05D 1/02 (2006.01); B05D 1/18 (2006.01); B05D 1/28 (2006.01); B32B 15/088 (2006.01); B32B 15/09 (2006.01); C23C 22/07 (2006.01); C23C 22/78 (2006.01); B32B 37/12 (2006.01); B32B 7/12 (2006.01); B32B 38/16 (2006.01); B32B 27/36 (2006.01); B32B 38/00 (2006.01); B05D 3/10 (2006.01); B05D 3/00 (2006.01); C23C 22/05 (2006.01);
U.S. Cl.
CPC ...
B32B 15/20 (2013.01); B05D 1/02 (2013.01); B05D 1/18 (2013.01); B05D 1/28 (2013.01); B32B 15/088 (2013.01); B32B 15/09 (2013.01); C23C 22/07 (2013.01); C23C 22/78 (2013.01); B05D 3/002 (2013.01); B05D 3/102 (2013.01); B05D 3/108 (2013.01); B05D 2202/25 (2013.01); B05D 2350/00 (2013.01); B05D 2350/10 (2013.01); B05D 2350/65 (2013.01); B05D 2401/20 (2013.01); B05D 2502/00 (2013.01); B32B 7/12 (2013.01); B32B 27/36 (2013.01); B32B 37/12 (2013.01); B32B 38/162 (2013.01); B32B 2037/1253 (2013.01); B32B 2037/1276 (2013.01); B32B 2038/0048 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2439/66 (2013.01); C23C 22/05 (2013.01);
Abstract
Improved aluminum can end stock (CES) is disclosed. The CES includes an adhered polymer coating exhibiting low feathering and high performance in various acid tests. The low feathering and resistance to acid tests is accomplished by incorporating a copolymer adhesion promoter film to an aluminum alloy before lamination. In some cases, the metal strip is pretreated with a conversion layer, which can include compounds of trivalent chromium (Cr(III)) and phosphates or titanium and zirconium.