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:
Sep. 02, 2014
Filed:
May. 24, 2012
Thomas Tiller, Bussigny, CH;
Olivier Rozumek, Le P{hacek over (a)}quier-Montbarry, CH;
Tristan Jauzein, Lausanne, CH;
Andrea Callegari, Chavannes-près-Renens, CH;
Frédéric Gremaud, Epagny, CH;
Brahim Kerkar, Pully, CH;
Thomas Tiller, Bussigny, CH;
Olivier Rozumek, Le P{hacek over (a)}quier-Montbarry, CH;
Tristan Jauzein, Lausanne, CH;
Andrea Callegari, Chavannes-près-Renens, CH;
Frédéric Gremaud, Epagny, CH;
Brahim Kerkar, Pully, CH;
Sicpa Holding SA, Prilly, CH;
Abstract
The present invention relates to a marking on an item or substrate, which marking is based on a chiral nematic (also called cholesteric) liquid crystal precursor composition. Prior to curing the chiral liquid crystal precursor composition in the chiral liquid crystal state at least one optical property exhibited by the composition is modified by two modifying agents of different types in at least one area of the item or substrate.