Bayer Aktiengesellschaft

Cytopharm, Inc.

Matthias Kocher

Emanuel Vogel

Alexander D Cross

Giulio Jori

Rolf Wehrmann

Horst Berneth

Roderich Raue

Horst Harnisch

Harald Pielartzik

Gunter Klug

Jurgen-Rolf Hassdenteufel

Modified polyester resins contain polyester blocks which have been obtained from dicarboxylic acids and dialcohols, groupings of the formulae ##STR1## where X=Z=a hydrocarbon radical having 1 to 20 C atoms and Y=a hydrocarbon radical having 2 to 25 C atoms, and if appropriate groupings originating from crosslinking agents. They can be used as base polymers for toners.

Modified polyester resins, a process for their preparation and toners

New naphthalimides, useful as additives in toners for controlling the charge and conductivity, of the formula ##STR1## in which R represents C.sub.1 - to C.sub.22 -alkyl,

New naphthalimides, toners containing these and the use of the new

The therapeutic compositions of this invention comprise one or more porphycene compounds incorporated within liposomes. The method of this invention for treating cancer comprises administering a therapeutically effective amount of a porphycene derivative to a patient, and exposing an affected body area of the patient to a therapeutically sufficient amount of light having a wavelength of from 600 to 950 nm.

Porphycene anti-cancer agents and treatment methods

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Overath, Germany

Matthias Kocher