Hoechst Aktiengesellschaft

Alfred Brechlin

Heinz Herrmann

Disclosed is a flexible photosensitive layer containing a polymeric binder, which is capable of being laminated and is applied to a preferably flexible support. The photosensitive layer comprises a photoconductor layer composed of a substantially organic photoconductor, the binder, a sensitizer and/or activator, in which the binder comprises at least one copolymer having repeating units of the general formula ##STR1## Wherein R.sub.1 denotes ##STR2## and R.sub.2 denotes H or --CH.sub.3.

Process for using a flexible laminatable photosensitive layer in the

Disclosed is a flexible photosensitive layer containing a polymeric binder, which is capable of being laminated and is applied to a preferably flexible support. The photosensitive layer comprises a photoconductor layer composed of a substantially organic photoconductor, the binder, a sensitizer and/or activator, in which the binder comprises at least one copolymer having repeating units of the general formula ##STR1## wherein R.sub.1 denotes ##STR2## and R.sub.2 denotes H or --CH.sub.3.

Flexible laminatable photosensitive layer

This invention relates to a liquid developer for developing electrostatic images which comprises an electrically insulating carrier liquid having dispersed therein pigmented polymer particles composed of pigment particles encapsulated by polymeric material and having a particle size in the range of about 0.1 to 12 .mu.m. The invention also includes a process for the preparation of the liquid developer.

Electrophotographic liquid developer and process for the manufacture

This invention relates to an electrophotographic developer liquid comprising a dispersion of a colored, viscous solution of polymers containing about 0.01 to 10 per cent by weight of water, calculated on the weight of polymers present, in an electrically insulating carrier liquid having a kauri-butanol value of less than about 30 and in which at least one of the polymers is sparingly soluble. The invention also relates to a process for the preparation of the novel electrophotographic developer liquid.

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Wiesbaden, Germany

Alfred Brechlin