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:
May. 09, 2023
Filed:
Jul. 25, 2018
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Nikolay A. Grigorenko, Basel, CH;
Michelle Richert, Basel, CH;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/101 (2014.01); C23C 18/14 (2006.01); C09D 11/033 (2014.01); C09D 7/61 (2018.01); C09D 7/63 (2018.01); B42D 25/373 (2014.01); C09D 7/40 (2018.01); B05D 3/00 (2006.01); B05D 5/06 (2006.01); B42D 25/378 (2014.01);
U.S. Cl.
CPC ...
C09D 11/101 (2013.01); B05D 3/002 (2013.01); B05D 5/067 (2013.01); B42D 25/373 (2014.10); C09D 7/61 (2018.01); C09D 7/63 (2018.01); C09D 7/66 (2018.01); C09D 11/033 (2013.01); C23C 18/143 (2019.05); B05D 2401/10 (2013.01); B05D 2601/02 (2013.01); B42D 25/378 (2014.10);
Abstract
The present invention relates to a process for the preparation of thin silver nano-particles containing layers, which are produced directly on a substrate as part of a coating or printing process. The layers can show different colours in transmittance and reflectance. The invention further relates to decorative and security elements. When the layers are applied over a security element, such as a hologram, the obtained products may show different colours in reflection and transmission, an extremely bright optically variable image (OVD image). Depending on the thickness of the layer a more or less intensive metallic aspect appears.