Imaging element comprising an electrically-conductive layer containing antimony-doped tin oxide particles

A photographic film comprising:

• (1) a support;
• (2) an electrically-conductive layer which serves as an antistatic layer overlying said support;
• and
• (3) a silver halide emulsion layer overlying said electrically-conductive layer;
• said electrically-conductive layer comprising a dispersion in a film-forming binder of electronically-conductive particles of antimony-doped tin oxide having an antimony dopant level of greater than 8 atom percent, an x-ray crystallite size of less than 100 Angstroms and an average equivalent circular diameter of less than 15 nanometers but no less than the X-ray crystallite size;
• the volume fraction of said particles being from about 20 to about 80% of the volume of said electrically-conductive layer.

A photographic film comprising:

• (1) a support;
• (2) a silver halide emulsion layer on one side of said support;
• (3) an electrically-conductive layer which serves as an antistatic layer on the opposite side of said support;
• and
• (4) a curl control layer overlying said electrically-conductive layer;
• said electrically-conductive layer comprising a dispersion in a film-forming binder of electronically-conductive particles of antimony-doped tin oxide having an antimony dopant level of greater than 8 atom percent, an x-ray crystallite size of less than 100 Angstroms and an average equivalent circular diameter of less than 15 nanometers but no less than the X-ray crystallite size;
• the volume fraction of said particles being from about 20 to about 80% of the volume of said electrically-conductive layer.

A photographic film comprising:

• (1) a support;
• (2) a silver halide emulsion layer on one side of said support;
• and
• (3) an electrically-conductive layer which serves as an antistatic backing layer on the opposite side of said support;
• said electrically-conductive layer comprising a dispersion in a film-forming binder of electronically-conductive particles of antimony-doped tin oxide having an antimony dopant level of greater than 8 atom percent, an x-ray crystallite size of less than 100 Angstroms and an average equivalent circular diameter of less than 15 nanometers but no less than the X-ray crystallite size;
• the volume fraction of said particles being from about 20 to about 80% of the volume of said electrically-conductive layer.

A photographic film comprising:

• (1) a support;
• (2) a silver halide emulsion layer on one side of said support;
• (3) an electrically-conductive layer which serves as an antistatic layer on the opposite side of said support;
• and
• (4) an abrasion-resistant backing layer overlying said electrically-conductive layer;
• said electrically-conductive layer comprising a dispersion in a film-forming binder of electronically-conductive particles of antimony-doped tin oxide having an antimony dopant level of greater than 8 atom percent, an x-ray crystallite size of less than 100 Angstroms and an average equivalent circular diameter of less than 15 nanometers but no less than the X-ray crystallite size;
• the volume fraction of said particles being from about 20 to about 80% of the volume of said electrically-conductive layer.

A method of providing an imaging element, that comprises a support and an image-forming layer, with an electrically-conductive layer;

• said method comprising the steps of:
• (1) providing an antimony-doped tin oxide having an antimony dopant level of greater than 8 atom percent, an X-ray crystallite size of less than 100 Angstroms and an average equivalent circular diameter of greater than 300 nanometers,
• (2) milling said antimony-doped tin oxide to reduce its average equivalent circular diameter to less than 15 nanometers but no less than the X-ray crystallite size thereof;
• (3) preparing a coating composition containing said milled antimony-doped tin oxide and a film-forming binder;
• and
• (4) forming from said coating composition said electrically-conductive layer;
• the amount of said milled antimony-doped tin oxide particles incorporated in said coating composition being sufficient to provide a volume fraction of said particles that is from about 20 to about 80% of the volume of said electrically-conductive layer.