Ciba Specialty Chemicals Corporation

Christian Stern

Heinz Wolleb

Beat Schmidhalter

Annemarie Wolleb

Heinz Spahni

Jean-Luc Budry

Colin Morton

Jürgen Beyrich

Gerald Anthony Murphy

Wolfgang Freitag

Roland Zoelper

Rudolf Blattner

Michael Schulz

Mixtures of metallocenyl phthalocyanines obtainable by reacting a mixture A comprising two phthalocyanines: with a metallocene derivative in the presence of a catalyst, and also oligomeric metallocenyl phthalocyanines, processes for preparing them, their use for, inter alia, optical recording and optical recording media.

Metallocenyl phthalocyanines as optical recording media

Mixtures of metallocenyl phthalocyanines obtainable by reacting a mixture A comprising two phthalocyanines (I) and (II) with a metallocene derivative in the presence of a catalyst, and also oligomeric metallocenyl phthalocyanines, processes for preparing them, their use for, inter alia, optical recording and optical recording media

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Wädenswil, Switzerland

Christian Stern