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. 13, 2010
Filed:
Dec. 08, 2005
Applicants:
Achim Neuhaeuser, Nauheim, DE;
Michael Enders, Dieburg, DE;
Guenther Dickhaut-bayer, Riedstadt, DE;
Inventors:
Assignee:
Evonik Roehm GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/32 (2006.01); B32B 27/00 (2006.01); B29C 47/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a foil encompassing at least one PMMA layer coloured with a yellow anthraquinone dye, where the chromaticity coordinates (x;y) in the CIE 1931 Standard Colorimetric System of the PMMA layer are within the range of 0.4≦x≦0.54 and 0.44≦y≦0.54, where the concentration of the yellow dye of the PMMA layer is at least 3% by weight, based on the total weight of the PMMA layer.