Patent · US Expired

Optical data stores containing a Co-phthalocyanine complex in the information layer recordable using light

US6713146B2 · kind B2 · utility

0Cited by

4References

10Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Josef-Walter Stawitz · Cologne, DE
Horst Berneth · Leverkusen, DE
Thomas Bieringer · Odenthal, DE
Friedrich-Karl Bruder · Krefeld, DE
Rainer Hagen · Leverkusen, DE
Karin Hassenruck · Mülheim an der Ruhr, DE
Serguei Kostromine · Rheinbach, DE
Rafael Oser · Krefeld, DE

Key dates

Filing date	Sep 20, 2001
Grant date	Mar 30, 2004
Priority date	—
Expiry date	Sep 20, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/21
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a singly recordable optical data medium using Co-phthalocyanine complexes of the formula (I) in which the groups are defined herein, as light-absorbing compounds in the information layer of optical data media, in which information layer is recordable using light, particularly for CD-R, and the application of the above-mentioned compounds to a polymer substrate, particularly polycarbonate, by spin coating.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.