US 7,579,127: Blocked polyisocyanates incorporating planar electron-deficient tetracobonylbisimide moieties

 

Inventors: Molaire, Michel F. (Rochester, NY, US) 

 

  Assignee:  Eastman Kodak Company (Rochester, NY, US) 

The present invention is a photoconductive element containing an electrically conductive support, an electrical barrier layer disposed over said electrically conductive support and a charge generation layer capable of generating positive charge carriers when exposed to actinic radiation disposed over the barrier layer. The barrier layer is formed from a blocked polyisocyanate containing tetracarbonylbisimide groups. The present invention also discloses a new composition of a blocked polyisocyanate containing tetracarbonylbisimide groups.

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