Title:
METAL COMPLEXES AS LIGHT-ABSORBING COMPOUNDS IN THE INFORMATION LAYER OF OPTICAL DATA CARRIERS
Document Type and Number:
WIPO Patent Application WO2004013234
Kind Code:
A3
Abstract:
Disclosed are novel metal complexes for an optical data carrier comprising a preferably transparent substrate which is optionally coated with one or several reflection layers, and to the surface of which an information layer that is writable by means of light, one or several optional refection layers, and an optional protective layer or another substrate or a covering layer are applied. Said data carrier is writable and readable by means of blue light or red light, preferably laser light. The information layer is provided with a light-absorbing compound and an optional bonding agent. The invention is characterized by the fact that at least said metal complex is used as a light-absorbing compound.
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Inventors:
BERNETH HORST (DE)
BRUDER FRIEDRICH-KARL (DE)
HAGEN RAINER (DE)
HASSENRUECK KARIN (DE)
KOSTROMINE SERGUEI (DE)
KRUEGER CHRISTA MARIA (DE)
MEYER-FRIEDRICHSEN TIMO (DE)
OSER RAFAEL (DE)
STAWITZ JOSEF-WALTER (DE)
BRUDER FRIEDRICH-KARL (DE)
HAGEN RAINER (DE)
HASSENRUECK KARIN (DE)
KOSTROMINE SERGUEI (DE)
KRUEGER CHRISTA MARIA (DE)
MEYER-FRIEDRICHSEN TIMO (DE)
OSER RAFAEL (DE)
STAWITZ JOSEF-WALTER (DE)
Application Number:
PCT/EP2003/007641
Publication Date:
May 27, 2004
Filing Date:
July 15, 2003
Export Citation:
Assignee:
BAYER CHEMICALS AG (DE)
BERNETH HORST (DE)
BRUDER FRIEDRICH-KARL (DE)
HAGEN RAINER (DE)
HASSENRUECK KARIN (DE)
KOSTROMINE SERGUEI (DE)
KRUEGER CHRISTA MARIA (DE)
MEYER-FRIEDRICHSEN TIMO (DE)
OSER RAFAEL (DE)
STAWITZ JOSEF-WALTER (DE)
BERNETH HORST (DE)
BRUDER FRIEDRICH-KARL (DE)
HAGEN RAINER (DE)
HASSENRUECK KARIN (DE)
KOSTROMINE SERGUEI (DE)
KRUEGER CHRISTA MARIA (DE)
MEYER-FRIEDRICHSEN TIMO (DE)
OSER RAFAEL (DE)
STAWITZ JOSEF-WALTER (DE)
International Classes:
C07D285/08; C07D233/90; C07D413/12; C07D417/04; C07D417/12; C09B29/09; C09B45/00; C09B45/48; G11B7/244; (IPC1-7): C09B45/02
Foreign References:
| EP0844243A1 | 1998-05-27 | |||
| EP0752494A1 | 1997-01-08 | |||
| CH576509A5 | 1976-06-15 |
Other References:
DATABASE CROSSFIRE BEILSTEIN [online] Beilstein Institut zur Förderung der Chemischen Wissenschaften, Frankfurt am Main, DE; XP002259097, Database accession no. BRN8366187
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; MURAYAMA, TETSURO ET AL: "Azo metal chelate compounds and optical recording medium using them", XP002270112, retrieved from STN Database accession no. 128:210925
DATABASE CA [online] CHEMICAL ABSTRACTS SERVICE, COLUMBUS, OHIO, US; MURAYAMA, TETSURO ET AL: "Azo metal chelate compounds and optical recording medium using them", XP002270112, retrieved from STN Database accession no. 128:210925
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