Oce-van Der Grinten N.v.

Cornelis P Kessels

A self-sticking adhesive tape is provided which is particularly effective for joining free ends of a photoconductive belt at a side of the belt presenting a photoconductive layer of ZnO dispersed in a binding agent. The tape comprises a polyester support film provided on one side with a flexible electrically conductive layer to prevent retention of electrostatic charges and provided on the other side with an adhesive layer, made sticky preferably by an acrylate resin, having (a) an adhesive force of at least 200 Newton per meter and (b) a shear tolerance of not more than 1 mm, as determined by tests of the tape after its adhesive side has been adhered to such photoconductive layer. The conductive layer preferably consists essentially of a dispersion of carbon particles in a polymeric binder such as 60:40 copolymer of ethylene-terephthalate and ethylene-isophthalate, and the adhesive layer of a dried coating of an anionic dispersion in water of a finely divided acrylic ester containing carboxyl groups.

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Venlo, Netherlands

Cornelis P Kessels