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:
Mar. 29, 2022
Filed:
Feb. 07, 2020
Röhm Gmbh, Darmstadt, DE;
Roehm America Llc, Parsippany, NJ (US);
Ghirmay Seyoum, Egelsbach, DE;
Markus Parusel, Messel, DE;
Kim Struwe, Frankfurt am Main, DE;
Anderson Costa, Gulf Breeze, FL (US);
Claude Guénanten, Darmstadt, DE;
Helmut Häring, Otzberg, DE;
Röhm GmbH, Darmstadt, DE;
Roehm America LLC, Parisppany, NJ (US);
Abstract
Heat resistant brittle films can be made from impact-modified poly(meth)acrylimide, and forgery prevention labels can contain the heat resistant brittle films. The films can be advantageously prepared by extrusion and, depending on the desired purpose, can be designed to be transparent, translucent, or entirely non-transparent, e.g., white. Ideally, the brittle films and the forgery prevention labels containing the brittle films have no intended break points such as slits, perforation, etc.