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:
Apr. 09, 2019
Filed:
May. 16, 2014
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42D 25/29 (2014.01); B42D 25/364 (2014.01); B42D 25/328 (2014.01); B42D 25/373 (2014.01); B42D 25/24 (2014.01); B42D 25/30 (2014.01); B42D 25/40 (2014.01); C09D 7/00 (2018.01); C09D 101/18 (2006.01); C09D 5/29 (2006.01); B41M 3/14 (2006.01); C08K 3/08 (2006.01); B32B 7/02 (2006.01); B32B 9/00 (2006.01); C08L 101/00 (2006.01); G07D 7/00 (2016.01); G09F 3/00 (2006.01); C09D 5/00 (2006.01);
U.S. Cl.
CPC ...
B42D 25/29 (2014.10); B41M 3/14 (2013.01); B41M 3/148 (2013.01); B42D 25/328 (2014.10); B42D 25/364 (2014.10); B42D 25/373 (2014.10); C08K 3/08 (2013.01); C09D 5/00 (2013.01); C09D 5/29 (2013.01); C09D 101/18 (2013.01); C08K 2003/0806 (2013.01);
Abstract
The present invention relates to complex security elements based on liquid crystal coatings which are subsequently coated with specific metallic nano-shaped metal particles, a method for their manufacture, in particular on a glass, paper or on a plastic substrate and a security product obtainable using the security element. The security element may contain additionally an embossed surface relief microstructure, especially an optically variable image (an optically variable device, OVD), such as a hologram. A further aspect of the invention is the use of such a security element for the prevention of counterfeit or reproduction of a document of value.