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Title:
光で書込み可能な情報層中に軸方向に置換されたCo-フタロシアニンを含有する光学データ記録媒体
Document Type and Number:
Japanese Patent JP2004524194
Kind Code:
A
Abstract:
Optical data carrier comprising a preferably transparent substrate which may, if desired, have previously been coated with one or more reflection layers and to whose surface a light-writeable information layer, if desired one or more reflection layers and if desired a protective layer or a further substrate or a covering layer have been applied, which can be written on and read by means of infrared light, preferably laser light, particularly preferably light having a wavelength in the range 750-800 nm, in particular 770-790 nm, where the information layer comprises a light-absorbent compound and, if desired, a binder, characterized in that at least one cobalt(III) phthalocyanine in which the Co metal centre bears two axial substituents R1 and R2 which represent, independently of one another, CN, SCN, alkoxy or alkylthio is used as light-absorbent compound.

Inventors:
Horst bernate
Friedrich-Karl Bruder
Wilfried Heeze
Liner hagen
Carlin Hasen Backpack
Sergey Kostromine
Peter Landenberger
Rafael Ozer
Thomas Sommerman
Josef-Walter Starwitz
Thomas belinger
Application Number:
JP2002578495A
Publication Date:
August 12, 2004
Filing Date:
March 20, 2002
Export Citation:
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Assignee:
Bayer Aktiengesellschaft
International Classes:
B41M5/26; C07D217/14; C07D221/04; C07D311/12; C07D311/80; C07D455/04; C07D491/04; C07F15/06; C09B23/01; C09B23/04; C09B23/10; C09B29/00; C09B29/036; C09B29/36; C09B44/10; C09B47/04; C09B47/08; C09B47/18; C09B47/20; C09B47/24; C09B47/26; C09K9/02; G11B7/0045; G11B7/24; G11B7/244; G11B7/247; G11B7/248; G11B7/249; G11B7/254; G11B7/26; G11B7/007; (IPC1-7): B41M5/26; G11B7/24
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel