The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 1984
Filed:
Dec. 10, 1982
Paul C Adair, Chillicothe, OH (US);
Amy L Burkholder, Chillicothe, OH (US);
Homer G Duda, Chillicothe, OH (US);
Richard F Wright, Chillicothe, OH (US);
Mary M Stanley, Waverly, OH (US);
The Mead Corporation, Dayton, OH (US);
Abstract
A self-contained silver halide diffusion transfer imaging sheet is provided which contains three layers on a substrate. The first layer is a silver halide emulsion formed in a non-ionic material. The intermediate layer is a water barrier. The third layer is a nucleating region which contains colloidal silver. A developer, base and silver transport agent can also be located in these layers. For example, the base and silver transport agent can be located in the nucleating layer, with the developer located in the emulsion layer. After the emulsion is exposed to actinic radiation, a non-aqueous activating medium is supplied which initiates the development and diffusion transfer processes. The final result is a positive image in the nucleating layer.