EP 2242884 A1 20101027 - SECURITY STRUCTURE COMPRISING A THERMOCHROMIC ELEMENT AND A PHOTOCHROMIC ELEMENT
Title (en)
SECURITY STRUCTURE COMPRISING A THERMOCHROMIC ELEMENT AND A PHOTOCHROMIC ELEMENT
Title (de)
SICHERHEITSSTRUKTUR MIT EINEM THERMOCHROMEM UND EINEM PHOTOCHROMEM ELEMENT
Title (fr)
STRUCTURE DE SECURITE COMPORTANT UN ELEMENT THERMOCHROMIQUE ET UN ELEMENT PHOTOCHROMIQUE
Publication
Application
Priority
- FR 2008051899 W 20081021
- FR 0758613 A 20071026
Abstract (en)
[origin: WO2009056728A1] The invention relates to a security structure (3) comprising: at least one photochromic layer (4) having at least one photochromic area (8) provided with at least one photochromic element, and at least one thermochromic layer (5) having at least one thermochromic area (9) provided with a thermochromic element, and at least partially covering the photochromic area (8).
IPC 8 full level
D21H 21/48 (2006.01); B42D 15/10 (2006.01); G07D 7/12 (2006.01); G07D 7/20 (2006.01)
CPC (source: EP US)
B42D 25/24 (2014.10 - US); B42D 25/29 (2014.10 - EP US); B42D 25/364 (2014.10 - US); D21H 21/48 (2013.01 - EP US); B42D 2033/04 (2022.01 - EP); B42D 2033/08 (2022.01 - EP); B42D 2033/14 (2022.01 - EP); B42D 2033/26 (2022.01 - EP); B42D 2035/24 (2022.01 - EP); G09F 2003/0283 (2013.01 - EP US)
Citation (search report)
See references of WO 2009056728A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
FR 2922905 A1 20090501; FR 2922905 B1 20091218; CA 2703169 A1 20090507; EP 2242884 A1 20101027; US 2010245044 A1 20100930; WO 2009056728 A1 20090507
DOCDB simple family (application)
FR 0758613 A 20071026; CA 2703169 A 20081021; EP 08844926 A 20081021; FR 2008051899 W 20081021; US 73872408 A 20081021