Reflective print material with extruded antistatic layer

• US 6,197,486 B1
• Filed: 12/27/1999
• Issued: 03/06/2001
• Est. Priority Date: 12/27/1999
• Status: Expired due to Fees

• Current Assignee: Eastman Kodak Company
• Original Assignee: Eastman Kodak Company
• Inventors: Majumdar, Debasis, Laney, Thomas M., Greener, Jehuda
• Primary Examiner(s): Schilling, Richard L.
• Application Number:
  US09/472,485
• Time in Patent Office: 435 Days
• Field of Search: 430/527, 430/529, 430/531
• US Class Current: 430/527
• CPC Class Codes: G03C 1/79 Macromolecular coatings or impregnations therefor, e.g. varnishes
• CPC Class Codes: G03C 1/85 characterised by antistatic additives or coatings
• CPC Class Codes: G03C 1/89 Macromolecular substances therefor

Abstract

The invention relates to a reflection photographic imaging material comprising at least one silver halide layer and a base material comprising at least one extruded layer comprising a polymeric antistatic material.

Claims

1. A reflection photographic imaging material comprising at least one silver halide layer, a support comprising at least one extruded layer formed integrally with the support comprising a polymeric antistatic material.

2. The imaging material of claim 1 wherein said at least one extruded layer further comprises an alloying material for said polymeric antistatic material.

3. The imaging material of claim 1 wherein said polymeric antistatic material comprises at least one material selected from the group consisting of polyetheresteramide, polyether block copolyamide, and segmented polyether urethane.

4. The imaging material of claim 1 wherein said polymeric antistatic material is on the bottom side of the said support opposite to the said silver halide layer.

5. The imaging material of claim 1 wherein said support comprises a paper sheet.

6. The imaging material of claim 1 wherein said support comprises a biaxially oriented polymer sheet laminated to the bottom of the said support, wherein said biaxially oriented polymer sheet comprises at least one extruded layer of antistatic material.

7. The imaging material of claim 1 wherein said imaging material has a surface electrical resistivity on the bottom side that is less than 13 log ohm/sq.

8. The imaging material of claim 2 further comprising a compatibilizer to aid in dispersion of said polymeric antistatic material in said alloying material.

9. The imaging material of claim 8 wherein said compatibilizer comprises a polyolefin.

10. The imaging material of claim 2 wherein said alloying material comprises polyolefin polymer or a polyester polymer.

11. The imaging material of claim 1 wherein said polymeric antistatic material comprises polyaniline.

12. The imaging material of claim 8 wherein said compatibilizer comprises a polyacrylate.

13. The imaging material of claim 1 wherein said support comprises a synthetic paper sheet.