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:
Mar. 01, 2022
Filed:
Jul. 31, 2014
Dieter Bögershausen, Grevenbroich, DE;
Jochen Schwarz, Wassenberg, DE;
Bernhard Kernig, Cologne, DE;
Kathrin Eckhard, Bonn, DE;
Axel Blecher, Niederkassel, DE;
Olaf Güßgen, Langenfeld, DE;
Dieter Bögershausen, Grevenbroich, DE;
Jochen Schwarz, Wassenberg, DE;
Bernhard Kernig, Cologne, DE;
Kathrin Eckhard, Bonn, DE;
Axel Blecher, Niederkassel, DE;
Olaf Güßgen, Langenfeld, DE;
Hydro Aluminium Rolled Products GmbH, Grevenbroich, DE;
Abstract
The invention relates to an aluminum alloy strip with improved surface optics, which is fabricated via hot and/or cold rolling, and consists of a type AA 3xxx, AA 5xxx, AA 6xxx or AA 8xxx aluminum alloy. The object of proposing an aluminum alloy strip that is suitable for attractive and precious surface optics despite the elevated percentage of alloy constituents is achieved in that, after degreasing, the finish-rolled aluminum alloy strip exhibits an increase in the luminance value L*(ΔL) in relation to the rolled-greasy state of more than 5 while measuring the color of the surface in the CIE L*a*b* color space using a standard illuminant D65 and a normal observation angle of 10°, excluding direct reflection in 45°/0° geometry.