Silver halide element with improved high temperature storage and sensitivity

US6472134B1 · kind B1 · utility

Assignee

• EASTMAN KODAK COMPANY · US

Inventors

• Steven P. Szatynski · Rochester, US
• James H. Reynolds · Rochester, US
• Annabel A. Muenter · Rochester, US
• George J. Burgmaier · Pittsford, US

Key dates

• Filing date: Jun 13, 2000
• Grant date: Oct 29, 2002
• Expiry date: Jun 13, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C7/30511
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A silver halide photographic element comprising at least one silver halide emulsion, said silver halide element further comprising an amido compound represented by Formula 1 wherein INH is a development inhibitor;LINK is a linking or timing group and m is 0, 1 or 2; andR1 and R2 independently represents an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system; or R1 and R2 are independently a —C(═O)(LINK)m—INH group, or are substituted with an —NR3aC(═O)—(LINK)m—INH group, with R3a being defined the same as R1 or R2, and wherein the compound of Formula I does not substantially react with oxidized developer to release INH; and a fragmentable electron donor compound of the formula X—Y′ or a compound which contains a moiety of the formula —X—Y′; whereinX is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is covalently linked directly or indirectly to X, and wherein:1) X&#82…