EP 2524814 A2 20121121 - Improvements in security features
Title (en)
Improvements in security features
Title (de)
Verbesserungen bei Sicherheitsfunktionen
Title (fr)
Améliorations apportées à des caractéristiques de sécurité
Publication
Application
Priority
CH 8432011 A 20110518
Abstract (en)
The invention pertains to a security element such as a security thread (1) for a security document comprising at least one layer of metallization (2) or metallic print, wherein said layer (2) is electric contact with at least one sacrificial element (5) protecting the metallization (2) or metallic print from corrosion. it furthermore pertains to a method for making such a security threat, a security document comprising such a security thread, and to a method for making such a security document.
IPC 8 full level
B41M 3/14 (2006.01); B42D 15/00 (2006.01); C09D 11/00 (2014.01); D21H 21/42 (2006.01); G07D 7/00 (2006.01); G09F 3/00 (2006.01)
CPC (source: EP US)
B41M 3/14 (2013.01 - US); B42D 25/29 (2014.10 - EP); B42D 25/328 (2014.10 - EP US); B42D 25/355 (2014.10 - EP US); B42D 25/373 (2014.10 - US); D21H 21/42 (2013.01 - EP US); G09F 3/0292 (2013.01 - EP); B42D 2033/10 (2022.01 - EP); B42D 2033/16 (2022.01 - EP); B42D 2033/20 (2022.01 - EP); B42D 2033/28 (2022.01 - EP); B42D 2033/30 (2022.01 - EP); B42D 2035/14 (2022.01 - EP); B42D 2035/16 (2022.01 - EP); B42D 2035/36 (2022.01 - EP)
Citation (applicant)
- HART, R. K., PROC. ROY. SOC., vol. A236, 1956, pages 68
- "Chemie", vol. 3, pages: 595 - 599
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2524814 A2 20121121; EP 2524814 A3 20130710; EP 2524814 B1 20150325
DOCDB simple family (application)
EP 12167814 A 20120514