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:
Jul. 12, 2016
Filed:
Feb. 27, 2013
Basf SE, Ludwigshafen, DE;
Raimund Schmid, Neustadt, DE;
Aron Wosylus, Bad Duerkheim, DE;
Christof Kujat, Neustadt, DE;
Hans Rudolf Merstetter, Chadds Ford, PA (US);
Casper Mullertz, Middletown, DE (US);
BASF SE, Ludwigshafen, DE;
Abstract
Described are thin plane-parallel aluminum flakes illustrated in FIG.having a thickness of up to 200 nm and comprising an inner layer of oxidized aluminium having a thickness of 0.5-30 nm, a process for the manufacture thereof and the use thereof, e.g. in formulations, like paints, electrostatic coatings, printing inks, plastics materials, and cosmetics. Surprisingly, due to the inner layer of oxidized aluminum the aluminum flakes have an improved shear stability as evidenced e.g. by the difference in lightness before and after shear stress.