EP 1185422 A1 20020313 - OPTICALLY VARIABLE SECURITY ATTRIBUTE
Title (en)
OPTICALLY VARIABLE SECURITY ATTRIBUTE
Title (de)
OPTISCH VARIABLES SICHERHEITSMERKMAL
Title (fr)
CARACTERISTIQUE DE SECURITE VARIABLE OPTIQUEMENT
Publication
Application
Priority
- DE 0001908 W 20000614
- DE 19928060 A 19990615
Abstract (en)
[origin: US7301682B1] The invention relates to an optically variable security attribute for documents, securities, bank notes, packaging and goods. The task of the invention is to provide an optically variable security attribute with covert detectable characteristics to improve safety against counterfeiting. In accordance with the invention, the task is accomplished in an optically variable security attribute with diffractive structures consisting of an electrically conductive polymer and at least one support web ( 1 ), a protection layer ( 7 ), a lacquer layer ( 3 ) and a reflection layer ( 4 ) by the electrically conductive polymer being polyethylenedioxythiophene polystyrenesulfunate (PEDT/PSS).
IPC 1-7
IPC 8 full level
B42D 25/29 (2014.01); B41M 3/14 (2006.01); B42D 15/00 (2006.01); B42D 25/328 (2014.01); B42D 25/36 (2014.01); B42D 25/40 (2014.01); D21H 21/48 (2006.01); G02B 5/18 (2006.01); G03H 1/18 (2006.01); G06K 19/06 (2006.01)
IPC 8 main group level
G07D 7/00 (2016.01)
CPC (source: EP KR US)
B41M 3/148 (2013.01 - EP US); B42D 25/29 (2014.10 - KR); B42D 25/328 (2014.10 - KR); B42D 25/36 (2014.10 - KR); B42D 25/40 (2014.10 - KR)
Citation (search report)
See references of WO 0076778A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 7301682 B1 20071127; AT E241476 T1 20030615; BG 106133 A 20020628; BG 64546 B1 20050729; BR 0012312 A 20020514; CA 2374435 A1 20001221; CN 1355745 A 20020626; CZ 20014232 A3 20020313; CZ 298221 B6 20070725; DE 19928060 A1 20001221; DE 50002371 D1 20030703; DK 1185422 T3 20030915; EP 1185422 A1 20020313; EP 1185422 B1 20030528; ES 2199846 T3 20040301; HU P0201521 A2 20020828; JP 2003502688 A 20030121; JP 3913549 B2 20070509; KR 100666631 B1 20070110; KR 20020010627 A 20020204; MX PA01011689 A 20020730; NO 20016015 D0 20011210; NO 20016015 L 20011210; PL 193839 B1 20070330; PL 351651 A1 20030519; PT 1185422 E 20031031; SK 17772001 A3 20020702; SK 285524 B6 20070301; TR 200103242 T2 20020321; UA 69464 C2 20040915; WO 0076778 A1 20001221
DOCDB simple family (application)
US 11060000 A 20000614; AT 00952853 T 20000614; BG 10613301 A 20011122; BR 0012312 A 20000614; CA 2374435 A 20000614; CN 00808888 A 20000614; CZ 20014232 A 20000614; DE 0001908 W 20000614; DE 19928060 A 19990615; DE 50002371 T 20000614; DK 00952853 T 20000614; EP 00952853 A 20000614; ES 00952853 T 20000614; HU P0201521 A 20000614; JP 2001503263 A 20000614; KR 20017013952 A 20011031; MX PA01011689 A 20000614; NO 20016015 A 20011210; PL 35165100 A 20000614; PT 00952853 T 20000614; SK 17772001 A 20000614; TR 200103242 T 20000614; UA 200210371 A 20000614