EP 1431050 A2 20040623 - Process for laser marking of a liquid crystal film
Title (en)
Process for laser marking of a liquid crystal film
Title (de)
Lasermarkierungsverfahren eines Flüssigkristallfilms
Title (fr)
Procédé de marquage au laser d'un film de crystaux liquides
Publication
Application
Priority
- EP 03026751 A 20031121
- EP 02028174 A 20021219
Abstract (en)
The invention relates to process for laser marking of a liquid crystal film. The invention further relates to a liquid crystal film obtained by this method and to its use in optical, decorative or security applications, for optical information storage or the preparation of liquid crystal pigments.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B41M 3/14 (2013.01); B41M 5/267 (2013.01)
Citation (applicant)
- US 6207240 B1 20010327 - SCHOENFELD AXEL [DE], et al
- WO 9322397 A1 19931111 - MERCK PATENT GMBH [DE], et al
- EP 0261712 A1 19880330 - PHILIPS NV [NL]
- DE 19504224 A1 19950824 - MERCK PATENT GMBH [DE]
- DE 4408171 A1 19950914 - BASF AG [DE]
- DE 4405316 A1 19950824 - BASF AG [DE]
- WO 9800428 A1 19980108 - MERCK PATENT GMBH [DE], et al
- GB 2328207 A 19990217 - MERCK PATENT GMBH [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 03026751 A 20031121