Antistatic layer for imaging element
AssigneeEastman Kodak Company
InventorsDebasis Majumdar, Dennis J. Eichorst, Kenneth L. Tingler
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Abstract
The present invention is an imaging element which includes a support, an image-forming layer superposed on the support, an electrically-conductive layer superposed on the support and a protective topcoat overlying the electrically-conductive layer. The electrically-conductive layer contains an electrically-conductive polymer and has a water electrode resistivity (WER) value that is substantially unchanged upon subjecting of the imaging element to color photographic processing. The protective topcoat is composed of a polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi.
Claims11
An imaging element comprising:
- a support;
- an image-forming layer superposed on the support;
- an electrically-conductive layer superposed on the support;
- said electrically-conductive layer comprising 3,4-dialkoxysubstituted polythiophene styrene sulfonate;
- and
- a protective topcoat overlying the electrically-conductive layer, said topcoat comprising a non-crosslinked aliphatic polyurethane film-forming binder having a tensile elongation to break of at least 50% and a Young's modulus measured at 2% elongation of at least 50000 psi;
- wherein said electrically-conductive layer has a water electrode resistivity (WER) value that is substantially unchanged upon subjecting of said imaging element to color photographic processing.
Dependencies are inferred from the claim text.