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Title:
OPTICAL DATA CARRIER THAT CONTAINS A MEROCYANINE DYE AS THE LIGHT-ABSORBING COMPOUND IN THE INFORMATION LAYER
Document Type and Number:
WIPO Patent Application WO2002080161
Kind Code:
A3
Abstract:
The invention relates to an optical data carrier that contains a preferably transparent substrate that is optionally already coated with one or more reflective layers, onto whose surface an information layer which can be written on with light, optionally one or more reflective layers and optionally a protective layer or a further substrate or a cover layer are applied. Said optical data carrier can be written on and read with blue, red or infrared light, preferably laser light, and the information layer comprises a light-absorbing compound and optionally a binder. The inventive data carrier is further characterized in that at least one merocyanine dye is used as the light-absorbing compound.

Inventors:
BERNETH HORST (DE)
BRUDER FRIEDRICH-KARL (DE)
HAESE WILFRIED (DE)
HAGEN RAINER (DE)
HASSENRUECK KARIN (DE)
KOSTROMINE SERGUEI (DE)
LANDENBERGER PETER (DE)
OSER RAFAEL (DE)
SOMMERMANN THOMAS (DE)
STAWITZ JOSEF-WALTER (DE)
BIERINGER THOMAS (DE)
Application Number:
PCT/EP2002/003068
Publication Date:
December 19, 2002
Filing Date:
March 20, 2002
Export Citation:
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Assignee:
BAYER AG (DE)
BERNETH HORST (DE)
BRUDER FRIEDRICH-KARL (DE)
HAESE WILFRIED (DE)
HAGEN RAINER (DE)
HASSENRUECK KARIN (DE)
KOSTROMINE SERGUEI (DE)
LANDENBERGER PETER (DE)
OSER RAFAEL (DE)
SOMMERMANN THOMAS (DE)
STAWITZ JOSEF-WALTER (DE)
BIERINGER THOMAS (DE)
International Classes:
B41M5/26; C07D209/12; C07D209/18; C07D213/55; C07D213/80; C07D213/85; C07D217/14; C07D221/04; C07D239/66; C07D277/20; C07D277/30; C07D277/36; C07D295/14; C07D311/12; C07D311/80; C07D319/06; C07D401/06; C07D401/14; C07D403/06; C07D405/04; C07D405/06; C07D405/14; C07D407/06; C07D409/06; C07D413/06; C07D417/06; C07D417/12; C07D455/04; C07D487/04; C07D491/04; C07F15/06; C09B23/00; C09B23/01; C09B23/04; C09B23/10; C09B29/00; C09B29/036; C09B29/36; C09B44/10; C09B47/04; C09B47/08; C09B47/26; C09K9/02; G11B7/0045; G11B7/24; G11B7/244; G11B7/2475; G11B7/248; G11B7/26; G11B7/007; G11B7/246; G11B7/253; G11B7/2534; G11B7/2542; G11B7/258; G11B7/2585; G11B7/259; G11B7/2595; (IPC1-7): G11B7/24; C09B23/00; C09B23/04; C09B23/10
Domestic Patent References:
WO1997035926A11997-10-02
Foreign References:
EP1083555A12001-03-14
DE3928758A11990-03-01
EP0293651A21988-12-07
EP1239468A22002-09-11
DE4033682A11991-07-11
US6090332A2000-07-18
EP0275381A21988-07-27
EP0317308A21989-05-24
US5785719A1998-07-28
US5079365A1992-01-07
DE19648564A11998-05-28
EP0279330A11988-08-24
Other References:
PATENT ABSTRACTS OF JAPAN vol. 010, no. 110 (P - 450) 24 April 1986 (1986-04-24)
LIPTAY W: "ELEKTROCHROMIE-SOLVATOCHROMIE", ANGEWANDTE CHEMIE, VCH VERLAGSGESELLSCHAFT, WEINHEIM, DE, vol. 81, no. 6, 1969, pages 195 - 206, XP000650066, ISSN: 0044-8249
ABDEL-HALIM S T: "SOLVATOCHROMISM OF A TYPICAL MEROCYANINE DYE", JOURNAL OF THE CHEMICAL SOCIETY. FARADAY TRANSACTIONS, ROYAL SOCIETY OF CHEMISTRY, CAMBRIDGE, GB, vol. 89, no. 1, 7 January 1993 (1993-01-07), pages 55 - 57, XP000335295, ISSN: 0956-5000
PATENT ABSTRACTS OF JAPAN vol. 018, no. 453 (M - 1662) 24 August 1994 (1994-08-24)
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