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:
Dec. 14, 2021
Filed:
Dec. 18, 2017
Applicant:
Covestro Deutschland Ag, Leverkusen, DE;
Inventors:
Heinz Pudleiner, Krefeld, DE;
Georgios Tziovaras, Neuss, DE;
Kira Planken, Goch, DE;
Stefan Janke, Brüggen, DE;
Christoph Köhler, Duisburg, DE;
Assignee:
Covestro Deutschland AG, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 5/10 (2006.01); C08J 5/18 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B32B 27/08 (2013.01); B32B 27/365 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2250/244 (2013.01); B32B 2250/40 (2013.01); B32B 2270/00 (2013.01); C08J 2369/00 (2013.01); C08J 2467/02 (2013.01);
Abstract
The present invention relates to plastic films with improved laser engraving capability, chemical resistance and mechanical stress, special embodiments of such films in the form of co-extrusion films, layer structures comprising such films, use of such films, as well as security documents, preferably identification documents, containing such films.